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Table Of Contents
Cisco MDS 9000 Family Release Notes
for Cisco MDS SAN-OS Release 3.0(3b)Determining the Software Version
Selecting the Correct Software Image for an MDS 9500 Series Switch
Migrating from Supervisor-1 Modules to Supervisor-2 Modules
Configuring Generation 2 Switching Modules
Upgrading Your Cisco MDS SAN-OS Software Image
Reconfiguring SSM Ports Before Upgrading to SAN-OS Release 3.0(3b)
Upgrading the SSI Image on Your SSM
Downgrading Your Cisco MDS SAN-OS Software Image
General Downgrading Guidelines
Downgrading your SSI Image on Your SSM
New Features in Cisco MDS SAN-OS Release 3.0(3b)
Virtual Router Redundancy Protocol (VRRP) Interfaces
Regulatory Compliance and Safety Information
Installation and Configuration Note
Obtaining Documentation, Obtaining Support, and Security Guidelines
Cisco MDS 9000 Family Release Notes
for Cisco MDS SAN-OS Release 3.0(3b)
Release Date: May 07, 2007
Text Part Number: OL-8795-06 F0
This document describes the caveats and limitations for switches in the Cisco MDS 9000 Family. Use this document in conjunction with documents listed in the "Related Documentation" section.
Note
Release notes are sometimes updated with new information on restrictions and caveats. Refer to the following website for the most recent version of the Cisco MDS 9000 Family Release Notes: http://www.cisco.com/en/US/products/hw/ps4159/ps4358/prod_release_notes_list.html
Table 1 shows the on-line change history for this document.
Table 1 Online History Change
A0
05/07/2007
Created release notes
B0
06/11/2007
Added DDTS CSCsi27133 and CSCsi33540.
C0
07/18/2007
Added DDTS CSCsj04224, CSCsj07363, and CSCsj19105.
Removed DDTS CSCei82909.
D0
08/24/2007
Added DDTS CSCsh95415.
E0
09/28/2007
Added DDTS CSCeh35635, CSCsh05721, CSCsi49231, and CSCsj65565.
F0
10/23/2007
Removed DDTS CSCsh31236.
Added a Note about downgrading from Cisco SAN-OS Release 3.2(1) to the "Downgrading Your Cisco MDS SAN-OS Software Image" section.
Contents
This document includes the following sections:
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Introduction
The Cisco MDS 9000 Family of Multilayer Directors and Fabric Switches provides industry-leading availability, scalability, security, and management, allowing you to deploy high performance storage-area networks with lowest total cost of ownership. Layering a rich set of intelligent features onto a high performance, protocol agnostic switch fabric, the Cisco MDS 9000 Family addresses the stringent requirements of large data center storage environments: uncompromising high availability, security, scalability, ease of management, and seamless integration of new technologies.
The Cisco MDS 9000 Family SAN-OS is the underlying system software that powers the Cisco MDS 9500 Series, 9200 Series, and 9100 Series multilayer switches. The Cisco SAN-OS provides intelligent networking features, such as multiprotocol and multitransport integration, virtual SANs (VSANs), advanced security, sophisticated debug analysis tools, and unified SAN management.
Components Supported
Table 2 lists the SAN-OS software part number and hardware components supported by the Cisco MDS 9000 Family.
Note
Table 2 Cisco MDS 9000 Family Supported Software and Hardware Components
Software
Not orderable.
MDS 9500 Supervisor/Fabric-2, SAN-OS software.
MDS 9500 Series only
Not orderable.
MDS 9500 Supervisor/Fabric-I, SAN-OS software.
MDS 9500 Series only
Not orderable.
MDS 9216 Supervisor/Fabric-I, SAN-OS software.
MDS 9200 Series only
Not orderable.
MDS 9100 Supervisor/Fabric-I, SAN-OS software.
MDS 9100 Series only
License
M9500ENT1K9
Enterprise package.
MDS 9500 Series
M9200ENT1K9
Enterprise package.
MDS 9200 Series
M9100ENT1K9
Enterprise package.
MDS 9100 Series
M9500FIC1K9
Mainframe package.
MDS 9500 Series
M9200FIC1K9
Mainframe package.
MDS 9200 Series
M9100FIC1K9
Mainframe package.
MDS 9100 Series
M9500FMS1K9
Fabric Manager Server package.
MDS 9500 Series
M9200FMS1K9
Fabric Manager Server package.
MDS 9200 Series
M9100FMS1K9
Fabric Manager Server package.
MDS 9100 Series
M9500EXT1K9
SAN Extension over IP package for IPS-8 module.
MDS 9500 Series
M9200EXT1K9
SAN Extension over IP package for IPS-8 module.
MDS 9200 Series
M9500EXT14K9
SAN Extension over IP package for IPS-4 module.
MDS 9500 Series
M9200EXT14K9
SAN Extension over IP package for IPS-4 module.
MDS 9200 Series
M9500EXT12K9
SAN Extension over IP package for MPS 14+2 module.
MDS 9500 Series
M9200EXT12K9
SAN Extension over IP package for MPS 14+2 module.
MDS 9200 Series
M9500SSE1K9
Storage Services Enabler package.
MDS 9500 Series with SSM
M9200SSE1K9
Storage Services Enabler package.
MDS 9200 Series with SSM
Chassis
DS-C9513
MDS 9513 director (13-slot modular chassis with 11 slots for switching modules, and 2 slots reserved for Supervisor 2 modules only—SFPs1 sold separately).
MDS 9513 only
DS-C9509
MDS 9509 director, base configuration (9-slot modular chassis includes 7 slots for switching modules and 2 slots for supervisor modules—SFPs sold separately).
MDS 9509 only
DS-C9506
MDS 9506 director (6-slot modular chassis includes 4 slots for switching modules and 2 slots for supervisor modules—SFPs sold separately).
MDS 9506 only
DS-C9216-K9
MDS 9216 16-port semi-modular fabric switch (includes 16 1-Gbps/2-Gbps Fibre Channel ports, power supply, and expansion slot—SFPs sold separately).
MDS 9216 only
DS-C9216A-K9
MDS 9216A 16-port semi-modular fabric switch (includes 16 1-Gbps/2-Gbps Fibre Channel ports, power supply, and expansion slot—SFPs sold separately).
MDS 9216A only
DS-C9216i-K9
MDS 9216i 16-port semi-modular fabric switch (includes 14 1-Gbps/2-Gbps Fibre Channel ports, 2 Gigabit Ethernet ports, power supply, and expansion slot—SFPs sold separately).
MDS 9216i only
DS-C9140-K9
MDS 9140 fixed configuration (non-modular) fabric switch (includes 8 full rate ports and 32 host-optimized ports).
MDS 9140 only
DS-C9120-K9
MDS 9120 fixed configuration, non-modular, fabric switch (includes 4 full rate ports and 16 host-optimized ports).
MDS 9120 only
External crossbar module
DS-13SLT-FAB1
MDS 9513 crossbar fabric module.
MDS 9513 only
Supervisor modules
DS-X9530-SF2-K9
MDS 9500 Supervisor-2, module.
MDS 9500 Series only
DS-X9530-SF1-K9
MDS 9500 Supervisor/Fabric-I module.
Switching modules
DS-X9016
MDS 9000 16-port 1-Gbps/2-Gbps Fibre Channel module (SFPs sold separately).
MDS 9500 Series and 9200 Series
DS-X9032
MDS 9000 32-port 1-Gbps/2-Gbps Fibre Channel module (SFPs sold separately).
DS-X9112
MDS 9000 12-port 4-Gbps Fibre Channel module (SFPs sold separately).
MDS 9500 Series and 9200 Series, except for the MDS 9216
DS-X9124
MDS 9000 24-port 4-Gbps Fibre Channel module (SFPs sold separately).
MDS 9500 Series and 9200 Series, except for the MDS 9216
DS-X9148
MDS 9000 48-port 4-Gbps Fibre Channel module (SFPs sold separately).
MDS 9500 Series and 9200 Series, except for the MDS 9216
DS-X9704
MDS 9000 4-port 10-Gbps Fibre Channel module (SFPs sold separately)
MDS 9500 Series and 9200 Series, except for the MDS 9216
Services modules
DS-X9308-SMIP
8-port Gigabit Ethernet IP Storage services module.
MDS 9500 Series and 9200 Series
DS-X9304-SMIP
4-port Gigabit Ethernet IP Storage services module.
DS-X9032-SSM
MDS 9000 32-port 1-Gbps/2-Gbps Fibre Channel Storage Services Module (SSM).
DS-X9302-14K9
14-port Fibre Channel/2-port Gigabit Ethernet Multiprotocol Services (MPS-14/2) module.
Optics
DS-X2-FC10G-SR
X2/SC optics, 10-Gbps Fibre Channel for short wavelength mode.
MDS 9500 Series and 9200 Series, except for the MDS 9216
DS-X2-FC10G-LR
X2/SC optics, 10-Gbps Fibre Channel for long wavelength mode.
LC-type fiber-optic SFP
DS-SFP-FC-2G-SW
2-Gbps/1-Gbps Fibre Channel—short wavelength SFP.
MDS 9000 Family
DS-SFP-FC-2G-LW
2-Gbps/1-Gbps Fibre Channel—long wavelength SFP.
DS-SFP-FCGE-SW
1-Gbps Ethernet and 1-Gbps/2-Gbps Fibre Channel—short wavelength SFP.
DS-SFP-FCGE-LW
1-Gbps Ethernet and 1-Gbps/2-Gbps Fibre Channel—long wavelength SFP.
DS-SFP-GE-T
1-Gbps Ethernet SFP.
DS-SFP-FC4G-SW
4-Gbps/2-Gbps/1-Gbps Fibre Channel—short wavelength SFP for DS-X91xx switching modules.
MDS 9500 Series and 9200 Series, except for the MDS 9216
DS-SFP-FC4G-MR
4-Gbps/2-Gbps/1-Gbps Fibre Channel—long wavelength SFP for DS-X91xx switching modules only. Supports distances up to 4 km.
DS-SFP-FC4G-LW
4-Gbps/2-Gbps/1-Gbps Fibre Channel—long wavelength SFP for DS-X91xx switching modules only. Supports distances up to 10 km.
CWDM2
DS-CWDM-xxxx
Gigabit Ethernet and 1-Gbps/2-Gbps Fibre Channel SFP LC interface xxxx nm, where xxxx = 1470, 1490, 1510, 1530, 1550, 1570, 1590, or 1610 nm.
MDS 9000 Family
DS-CWDM-MUX-4
Add/drop multiplexer for four CWDM wavelengths.
DS-CWDM-MUX-8
Add/drop multiplexer for eight CWDM wavelengths.
DS-CWDMCHASSIS
Two slot chassis for CWDM add/drop multiplexers.
Power supplies
DS-CAC-6000W
6000-W AC power supply.
MDS 9513 only
DS-CAC-2500W
2500-W AC power supply.
MDS 9509 only
DS-CDC-2500W
2500-W DC power supply.
DS-CAC-3000W
3000-W AC power supply.
DS-CAC-4000W-US
4000-W AC power supply for US (cable attached).
DS-CAC-4000W-INT
4000-W AC power supply international (cable attached).
DS-CAC-1900W
1900-W AC power supply.
MDS 9506 only
DS-CDC-1900W
1900-W DC power supply.
DS-CAC-845W
845-W AC power supply.
MDS 9200 Series only
DS-CAC-300W
300-W3 AC power supply.
MDS 9100 Series only
CompactFlash
MEM-MDS-FLD512M
MDS 9500 supervisor CompactFlash disk, 512 MB.
MDS 9500 Series only
Port analyzer adapter
DS-PAA-2, DS-PAA
A standalone Fibre Channel-to-Ethernet adapter that allows for simple, transparent analysis of Fibre Channel traffic in a switched fabric.
MDS 9000 Family
CD-ROM
M90FM-CD-212=
MDS 9000 Management Software and Documentation CD-ROM, spare.
MDS 9000 Family
1 SFP = small form-factor pluggable
2 CWDM = coarse wavelength division multiplexing
3 W = Watt
Software Download Process
Use the software download procedure to upgrade to a later version, or downgrade to an earlier version, of an operating system. This section describes the software download process for the Cisco MDS SAN-OS and includes the following topics:
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Determining the Software Version
To determine the version of Cisco MDS SAN-OS software currently running on a Cisco MDS 9000 Family switch using the CLI, log in to the switch and enter the show version EXEC command.
To determine the version of Cisco MDS SAN-OS software currently running on a Cisco MDS 9000 Family switch using the Fabric Manager, view the Switches tab in the Information pane, locate the switch using the IP address, logical name, or WWN, and check its version in the Release column.
Note
Downloading Software
The Cisco MDS SAN-OS software is designed for mission-critical high availability environments. To realize the benefits of nondisruptive upgrades on the Cisco MDS 9500 Directors, we highly recommend that you install dual supervisor modules.
To download the latest Cisco MDS SAN-OS software, access the Software Center at this URL:
http://www.cisco.com/public/sw-center
See the following sections in this release note for details on how you can nondisruptively upgrade your Cisco MDS 9000 switch. Issuing the install all command from the CLI, or using Fabric Manager to perform the downgrade, enables the compatibility check. The check indicates if the upgrade can happen nondisruptively or disruptively depending on the current configuration of your switch and the reason.
Compatibility check is done:Module bootable Impact Install-type Reason------ -------- -------------- ------------ ------1 yes non-disruptive rolling2 yes disruptive rolling Hitless upgrade is not supported3 yes disruptive rolling Hitless upgrade is not supported4 yes non-disruptive rolling5 yes non-disruptive reset6 yes non-disruptive resetAt a minimum, you need to disable the default device alias distribution feature using the no device-alias distribute command in global configuration mode. The show incompatibility system bootflash:1.3(x)_filename command determines which additional features need to be disabled.
Note
Selecting the Correct Software Image for an MDS 9500 Series Switch
The system and kickstart image that you use for an MDS 9500 Series switch depends on whether the switch is based on a Supervisor-1 module or a Supervisor-2 module, as shown in Table 3.
Use the show module command to display the type of supervisor module in the switch.
For a Supervisor-1 module, the output might look like this:
switch# show moduleMod Ports Module-Type Model Status--- ----- -------------------------------- ------------------ ------------......5 0 Supervisor/Fabric-1 DS-X9530-SF1-K9 active*6 0 Supervisor/Fabric-1 DS-X9530-SF1-K9 ha-standbyFor a Supervisor-2 module, the output might look like this:
switch# show moduleMod Ports Module-Type Model Status--- ----- -------------------------------- ------------------ ------------......7 0 Supervisor/Fabric-2 DS-X9530-SF2-K9 active *8 0 Supervisor/Fabric-2 DS-X9530-SF2-K9 ha-standbyMigrating from Supervisor-1 Modules to Supervisor-2 Modules
As of Cisco MDS SAN-OS Release 3.0(1), the Cisco MDS 9509 and 9506 Directors support both Supervisor-1 and Supervisor-2 modules. Supervisor-1 and Supervisor-2 modules cannot be installed in the same switch, except during migration. Both the active and standby supervisor modules must be of the same type, either Supervisor-1 or Supervisor-2 modules. For Cisco MDS 9513 Directors, both supervisor modules must be Supervisor-2 modules.
Caution
Note
To migrate from a Supervisor-1 module to a Supervisor-2 module, refer to the step-by-step instructions in the Cisco MDS 9000 Family CLI Configuration Guide.
Configuring Generation 2 Switching Modules
The Cisco MDS 9500 Multilayer Directors are designed to operate with any combination of Cisco MDS 9000 Generation 1 and Generation 2 modules. However, there are limitations to consider when combining the various modules and supervisors in the Cisco MDS 9500 Series platform chassis. The references listed in this section provide specific information about configurations that combine different modules and supervisors.
For information on configuring Generation 2 switching modules, refer to:
http://www.cisco.com/en/US/products/ps5989/products_configuration_guide_chapter09186a0080664c6b.html
For information on port index availability, refer to:
http://www.cisco.com/en/US/products/ps5990/products_installation_guide_chapter09186a0080419599.html
For information on Cisco MDS 9000 hardware and software compatibility, refer to:
http://www.cisco.com/en/US/products/ps5989/products_device_support_table09186a00805037ee.html
Upgrading Your Cisco MDS SAN-OS Software Image
This section lists the guidelines recommended for upgrading your Cisco MDS SAN-OS software image and contains the following sections:
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Note
General Upgrading Guidelines
Use the following guidelines when upgrading to Cisco MDS SAN-OS Release 3.0(3b):
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Use Table 4 to determine your nondisruptive upgrade path to Cisco SAN-OS Release 3.0(3b). Find the image release number you are currently using in the Current column of the table and use the path recommended.
Note
Use Table 5 to determine your nondisruptive upgrade path to Cisco SAN-OS Release 3.0(3b). Find the image release number you are currently using in the Current Release with FICON Enabled column of the table and use the path recommended.
Upgrading with IVR Enabled
An Inter-Switch Link (ISL) flap resulting in fabric segmentation or a merge during or after an upgrade from Cisco MDS SAN-OS Release 2.0(x) to a later image where IVR is enabled might be disruptive. Some possible scenarios include the following:
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If this problem occurs, syslogs indicate a failure and the flapped ISL could remain in a down state because of a domain overlap.
This issue was resolved in Cisco SAN-OS Release 2.1(2b); therefore, you must upgrade to Release 2.1(2b) before upgrading to Release 3.0(x). A FICON fabric can upgrade from the Cisco SAN-OS Releases 2.0(2b) and 2.0(3) to Release 3.0(x). However, an upgrade from Cisco SAN-OS Releases 2.1(1a), 2.1(1b), or 2.1(2a) to Release 2.1(2b) when IVR is enabled requires that you follow the procedure below, and then follow the upgrade guidelines listed in the "General Upgrading Guidelines" section. If you have VSANs in interop mode 2 or 3, you must issue an IVR refresh for those VSANs.
To upgrade from Cisco SAN-OS Releases 2.1(1a), 2.1(1b), or 2.1(2a) to Release 2.1(2b) for all other VSANs with IVR enabled, follow these steps:
Step 1
Note
Step 2
Note
Step 3
2005 Aug 31 21:52:04 switch %FCDOMAIN-2-EPORT_ISOLATED:%$VSAN 2005%$ Isolation of interfaceport-channel 52 (reason: unknown failure)2005 Aug 31 21:52:04 switch %FCDOMAIN-2-EPORT_ISOLATED: %$VSAN 2005%$Isolation of interface port-channel 51(reason: domain ID assignment failure)Step 4
switch(config)# vsan databaseswitch(config-vsan-db)# vsan vsan-id suspendswitch(config-vsan-db)# no vsan vsan-id suspendStep 5
Step 6
Step 7
Note
Reconfiguring SSM Ports Before Upgrading to SAN-OS Release 3.0(3b)
Starting with Cisco MDS SAN-OS Release 3.0(1), the SSM front panel ports can no longer be configured in auto mode, which is the default for releases prior to Release 3.0(1).
Note
For more information on upgrading SAN-OS software, see the "Upgrading Your Cisco MDS SAN-OS Software Image" section.
If the configuration is not updated before the upgrade, the installation process for the new image will automatically convert all ports configured in auto mode to Fx mode. This change in mode might cause a disruption if the port is currently operating in E mode.
To upgrade the image on your SSM without any traffic disruption, follow these steps:
Step 1
switch# show interface fc 2/1 - 32fc2/1 is upHardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)Port WWN is 20:4b:00:0d:ec:09:3c:00Admin port mode is auto <-------- shows port is configured in auto modesnmp traps are enabledPort mode is F, FCID is 0xef0300 <-------- shows current port operational mode is FPort vsan is 1Speed is 2 GbpsTransmit B2B Credit is 3Step 2
a.
switch# config tswitch(config)# interface fc 2/1switch(config-if)# switchport mode fxb.
switch# config tswitch(config)# interface fc 2/5switch(config-if)# switchport mode eStep 3
a.
switch# config tswitch(config)# interface fc 2/2switch(config-if)# switchport mode fxb.
switch# config tswitch(config)# interface fc 2/2switch(config-if)# shutdownswitch# copy running-config startup-configUpgrading the SSI Image on Your SSM
Use the following guidelines to nondisruptively upgrade the SSI image on your SSM:
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Caution
Downgrading Your Cisco MDS SAN-OS Software Image
This section lists the guidelines recommended for downgrading your Cisco MDS SAN-OS software image and contains the following sections:
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General Downgrading Guidelines
Use the following guidelines to nondisruptively downgrade your Cisco MDS SAN-OS Release 3.0(3b):
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Use Table 6 to determine your nondisruptive downgrade path from Cisco SAN-OS Release 3.0(3b). Find the SAN-OS image you want to downgrade to in the To SAN-OS Release column of the table and use the path recommended.
Note
Use Table 7 to determine your nondisruptive downgrade path from Cisco SAN-OS Release 3.0(3b). Find the image release number you are currently using in the Current Release with FICON Enabled column of the table and use the path recommended.
Downgrading your SSI Image on Your SSM
Use the following guidelines when downgrading your SSI image on your SSM.
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Note
switch(config)#poweroff module slot
switch# purge module slot running-config
New Features in Cisco MDS SAN-OS Release 3.0(3b)
This section briefly describes the new features introduced in this release. For detailed information about the features listed, refer to the Cisco MDS 9000 Family CLI Configuration Guide and the Cisco MDS 9000 Family Fabric Manager Configuration Guide.
Note
There are no new features in Cisco MDS SAN-OS Release 3.0(3b)
Limitations and Restrictions
This section lists the limitations and restrictions for this release.
CWDM SFPs
Some 2-Gbps CWDM SFPs do not have have speed capability encoded in EEPROM memory and they could negotiate and obtain synchronization up to 4-Gbps on modules that support 4-Gbps speed. As a result, the link comes up and appears to work, but then becomes disabled and connectivity problems occur. To correct this problem, both sides of the connection must have their speed fixed to 1- or 2-Gbps instead of Auto.
Fabric Manager
Observe the following limitations or restrictions for the Cisco SAN-OS Release 3.0(3b) for Fabric Manager:
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iSNS
Observe the following behaviors regarding the iSNS server and client:
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MTU Size Limitation
The Cisco MDS 9216i switch and MPS-14/2 module do not support an MTU size greater than 8000 bytes. An attempt to set the MTU size greater than 8000 bytes will result in an error. As a workaround, reset the value of the MTU size (576 to 8000 bytes) and issue the no shutdown command on the interface for normal operation.
Reconfiguring SSM Ports
Starting with Cisco MDS SAN-OS Release 3.0(1), the SSM front panel ports can no longer be configured in auto mode, which is the default for releases prior to Release 3.0(1). For instructions about how to modify the configuration of the ports before upgrading to SAN-OS Release 3.0(3b), see the "Reconfiguring SSM Ports Before Upgrading to SAN-OS Release 3.0(3b)" section.
Virtual Router Redundancy Protocol (VRRP) Interfaces
When a switchover occurs on a switch that is the master for Virtual Router Redundancy Protocol (VRRP) interfaces, the switchover may cause a minor delay. As a result, the VRRP backup (occurring elsewhere) may assume the role of the VRRP master. As a workaround, increase the VRRP advertisement interval for these interfaces.
Caveats
This section lists the open and resolved caveats for this release. Use Table 8 to determine the status of a particular caveat. In the table, "O" indicates an open caveat and "R" indicates a resolved caveat.
Resolved Caveats
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Symptom: On the Cisco MDS 9000 Family 12-port, 24-port and 48-port 4-Gbps Fibre Channel modules and the Cisco MDS 9000Family 4-port 10-Gbps Fibre Channel module, the component that communicates with the Supervisor modules has an issue where its receiver erroneously indicates an available frame when there is none. As a result, the software might attempt to access a memory location, which could lead to a kernel crash. This situation is extremely rare.
Workaround: This issue is resolved.
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Symptom: If a management application makes multiple SNMP get or get next requests for interface information in bulk, such as interface counters, and these requests are made in a short period of time, the SNMP process may occasionally crash.
Workaround: This issue is resolved.
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Symptom: On a FICON enabled trunking port, after a reconfigure fabric frames (RCF), the port will come up, but the FICON traffic may not flow properly.
Workaround: This issue is resolved.
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Symptom: Following an upgrade of the Fabric Manager to Cisco MDS SAN-OS 3.0(3), some hosts have a status of "not in fabric" in the VSAN local zone. The hosts also do not appear in the VSAN host table or in the IVR device database. As a result, Fabric Manager cannot be used to configure zones or IVR zones for these hosts.
Workaround: This issue is resolved.
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Symptom: Following an upgrade from Cisco SAN-OS 2.0(2b) to Cisco SAN-OS 3.0(2) on a switch where Fabric Binding is enabled, the switch displays this message:
%LICMGR-3-LOG_LIC_NO_LIC: No license(s) present for feature ENTERPRISE_PKG. Application(s) shutdown in xx days.
Fabric Binding incorrectly causes the ENTERPRISE_PKG to start the grace period even if Fabric Binding is being used solely for FICON VSANs under the installed MAINFRAME_PKG license.
Workaround: This issue is resolved.
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Symptom: In some rare instances, on the Cisco MDS 9000 Family 12-port, 24-port and 48-port 4-Gbps Fibre Channel modules and the Cisco MDS 9000 Family 4-port 10-Gbps Fibre Channel module, it is possible during port flaps to have a credits overrun or underrun bring down all or some of the ports.
Workaround: This issue is resolved.
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Symptom: It is possible for the hardware interface used to access SFPs and temperature sensors on modules to lock up. This inhibits the detection of a subsequent removal or insertion of an SFP and results in the failure to read a module's temperature sensors.
Workaround: This issue is resolved.
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Symptom: If you remove a fan tray module from an MDS 9500 series switch that is running Cisco MDS SAN-OS Release 3.0(1), 3.0(2), 3.0(2a) 3.0(2b), 3.0(3), 3.1(1), 3.1(2) or 3.1(2a), the switch will shut down at the next supervisor switchover if you do not replace the fan tray module within 170 seconds. (In all other SAN-OS releases, you have 250 seconds to replace it.)
Workaround: This issue is resolved.
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Symptom: When Fabric Manager, Device Manager, or the CLI is unable to acquire device allegiance (meaning that the host has exclusive control of the device), an enhanced error message specifies that the configuration must be retried due to contention from the mainframe configuration.
Workaround: This issue is resolved.
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Symptom: When httpd port 80 is blocked on the switch, it takes a long time for Fabric Manager and Device Manager to discover the fabric.
Workaround: This issue is resolved.
Open Caveats
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Symptom: On the Cisco MDS 9000 4-port 10-Gbps Fibre Channel module, one of the applications would crash during port flaps because of a memory corruption in the application.
Workaround: None.
•
Symptom: When the server.hostname parameter is set to an IP address in the server.properties file, the Fabric Manager Server restart message repeatedly displays in the Fabric Manager Client open dialog box.
Workaround: None. This issue is resolved in the Cisco MDS 9000 Family Fabric Manager Release 3.0(3a). For more information, refer to the Release Notes for Cisco MDS 9000 Family Fabric Manager Release 3.0(3a).
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Symptom: Under rare conditions, it is possible that a Cisco MDS9216i Switch or an MPS-14/2 module running FCIP might experience port software failures, causing a flap on the Gigabit Ethernet interface. You may see messages like the following:
2006 Sep 7 23:13:20 mdspd1 %ETHPORT-5-IF_DOWN_SOFTWARE_FAILURE: Interface GigabitEthernet1/1 is down (Port software failure)
2006 Sep 7 23:13:20 mdspd1 %KERN-3-SYSTEM_MSG: Sibyte: Error: CoreId 1 out of range
2006 Sep 7 23:13:20 mdspd1 %PORT-5-IF_DOWN_INITIALIZING: %$VSAN 2%$ Interface fcip1 is down (Initializing)
2006 Sep 7 23:13:20 mdspd1 %PORT-5-IF_DOWN_SOFTWARE_FAILURE: %$VSAN 4094%$ Interface iscsi1/1 is down (Port software failure)
2006 Sep 7 23:13:26 mdspd1 %IPS_SB_MGR-SLOT1-2-PORT_SOFTWARE_FAILURE: Port software failure, module 1 port 1
2006 Sep 7 23:13:26 mdspd1 %IPS_SB_MGR-SLOT1-2-PORT_SOFTWARE_FAILURE: Port software failure, module 1 port 1
2006 Sep 7 23:13:37 mdspd1 %PORT-5-IF_DOWN_ADMIN_DOWN: %$VSAN 4094%$ Interface iscsi1/1 is down (Administratively down)
2006 Sep 7 23:13:46 mdspd1 %ETHPORT-5-IF_UP: Interface GigabitEthernet1/1 is up
2006 Sep 7 23:13:49 mdspd1 %PORT-5-IF_UP: %$VSAN 2%$ Interface fcip1 is up in mode TE
2006 Sep 7 23:13:49 mdspd1 %PORT-5-IF_UP: %$VSAN 2%$ Interface fcip1 is up in mode TEWorkaround: To reduce the messages or stop them, remove write acceleration if you have it configured for the FCIP interface.
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Symptom: Cisco MDS SAN-OS Release 3.0(3b) does not support fabric binding in interop mode 4.
Workaround: None.
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Symptom: The fabric login (FLOGI) process fails while new hosts are initializing. The show flogi internal event error command shows that a module is not present.
Workaround: Re-install the module.
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Symptom: While using an FCIP link for remote SPAN, it is possible that the FCIP link may flap.
Workaround: Do not use FCIP links for Remote SPAN.
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Symptom: On a 4-Gbps Fibre Channel module, PLOGI accepts were discarded because the port was initially an F port, but had been changed to an E port.
Workaround: To resolve this issue, follow these steps:
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Symptom: 100% CPU utilization was seen on an MDS switch. It was caused by repeated fabric logins (FLOGIs) on a particular port. This situation can occur if a host cannot log in because the allocation of the FC ID fails, and keeps re-trying using a specific pattern of Source FC IDs (S_IDs) for the FLOGI frame.
Workaround: The interface will now be error-disabled for too many FLOGI failures.
To troubleshoot the configuration and find the reason for the FC ID allocation failure, examine the messages in the syslog. Refer to the Cisco MDS 9000 Family CLI Configuration Guide for detailed information about FLOGI, FC IDs, and FC ID allocation for HBAs.
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Symptom: If you install a feature license on any module, then the storage services module (SSM) with the SCSI flow feature will be reprovisioned and write acceleration on the flows will be affected.
Workaround: To work around this issue, please contact Cisco TAC. They can help you recover from this problem by guiding you through the following steps:
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Symptom: A crash might occur in the intelligent line card (ILC) helper process when provisioning or deprovisioning a storage application on the SSM card.
Workaround: If the ILC helper dumps core memory three times, reboot the switch for it to function normally. Use the show cores command to determing if the ILC helper has dumped core memory.
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Symptom: Spectra Logic tape drives require a unique area ID.
Workaround: Add the company OUI ID to the swtich database so that the switch can assign unique area IDs to the Spectra Logic tape drives.
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Symptom: When you configure Cisco Traffic Analyzer to capture traffic on one or more interfaces on a Windows platform, the configuration web page might not show that the interface has been selected for traffic capture even though traffic capture on that interface is enabled.
Workaround: Check the logs to clarify that the correct interface has been selected.
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Symptom: If the iSNS Client has registered with the iSNS server, and does not send any protocol messages to the server, the iSNS Server might not time out idle sessions from the iSNS client.
Workaround: Clear the session explicitly from the iSNS Client side.
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Symptom: If an iSNS client tries to register a portal separately after registering the network entity and storage node object with the Cisco MDS iSNS server, the portal registration might fail.
Workaround: Register the portal at the same time as the network entity and storage node object registration.
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Symptom: Occasionally, the Common Information Model (CIM) server may be automatically restarted because of an internal error. In this case, the connected CIM client is disconnected.
Workaround: You must explicitly reconnect the CIM client to the CIM server.
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Symptom: On rare occasions, the PortChannels with FCIP interface members fail to come up when the switch reboots. This occurrence happens when the startup configuration has a default switch port trunk mode setting that does not match the configured trunk mode for PortChannel members (FCIP interfaces). Also, the startup configuration shows any explicit switch port trunk mode setting for the PortChannel.
Workaround: Reconfigure the switch port trunk mode on the PortChannel.
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Symptom: The iSNS server might crash when iSCSI is disabled and iSNS is enabled using Fabric Manager.
Workaround: None.
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Symptom: If there are IPFC interfaces configured on an SSM, you might experience issues if you downgrade from SAN-OS Release 3.x to Release 2.x.
Workaround: Before downgrading, remove the IPFC interface on the module and then recreate the IPFC interface after the downgrade is complete.
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Symptom: The Qlogic 2460 HBA fails to remote boot when it connects to a VT instantiated by SANTap on the SSM because the Qlogic 2460 BIOS sends a test ready unit with an invalid command reference number (CRN) and task attribute field. This same HBA can boot when SANTap and the SSM are not part of the configuration.
Workaround: Use the Qlogic 2340 HBA.
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Symptom: A user called snmp-user can successfully log into an MDS switch through the CLI, but cannot log in through Fabric Manager or Device Manager. The login attempt fails with this error:
SNMP: Unknown usernameWorkaround: None.
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Symptom: Following an upgrade from Cisco SAN-OS 2.1(2b) to Cisco SAN-OS 3.0(2), a VSAN carrying FICON traffic was not trunking and the remote Domain Manager was not responding.
Workaround: None.
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Symptom: On rare occasions following an upgrade from Cisco MDS SAN-OS 2.1(2b) to Cisco SAN-OS 3.0(2a), module configurations might be removed.
Workaround: Reload the affected modules and then reconfigure or copy the configurations for the affected interfaces to the switch.
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Symptom: Cisco Fabric Manager shows read-write community strings for other communities when a user is logged in with a read-only community string.
Workaround: None.
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Symptom: When in-order delivery (IOD) is disabled, an entry in the accounting log is posted showing that it is enabled.
Workaround: None.
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Symptom: Time zone changes that are executed on an MDS switch do not take effect on the 12-port, 24-port, and 48 port 1-Gbps/2-Gbps/4-Gbps Fibre Channel modules, and on the 4-port 10-Gbps module. This issue occurs in SAN-OS Releases 3.0(1), 3.0(2), 3.0(2a), and 3.0(3).
Time zone changes that are executed on an MDS switch do not take effect on the 16-port or 32-port 1-Gbps/2-Gbps module, on the 4-port or 8-port Gigabit Ethernet IP services module, the MPS 14/2 module, and on the SSM. This issue occurs in SAN-OS Release 3.0(3).
This issue has no effect on functionality. However, debug messages and syslogs from the MDS switching modules will have incorrect timestamps if the time zone is configured on an MDS switch.
Workaround: None.
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Symptom: Graceful shutdowns of ISLs are not supported for IVR traffic.
Workaround: Increase the FSPF cost on the link before it is shut down, so that traffic will flow through an alternate path.
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Symptom: If you use Device Manager to create a target initiator and then you select Edit, Device Manager allows the entry to be a host address with a /24 mask, but it should only allow a /32 mask for a host address.
Workaround: Use Device Manager to remove the entry.
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Symptom: If you click the Dump FM Server popup menu item, or use the Fabric Manager Server info command, the Fabric Manager Server displays an error message.
Workaround: None. This issue is resolved in the Cisco MDS 9000 Family Fabric Manager Release 3.0(3a). For more information, refer to the Release Notes for Cisco MDS 9000 Family Fabric Manager Release 3.0(3a).
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Symptom: After you install an MPS-14/2 module, the power capacity level on the switch might be incorrect.
Workaround: To correct the power capacity level, switch the power capacity from Redundant to Combined and then back to Redundant again.
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Symptom: If a user attempts to log in using TACACS+ authentication to an MDS switch or an SSH server configured on the switch, the login might fail if password-authentication is the first login method the user tries.
Workaround: Use the keyboard-interactive method as the first login method for SSH.
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Symptom: On all Cisco MDS Fibre Channel modules, remote spanning does not work if the size of the spanned packet is more than 2112 octets. Remote spanning works normally for packet sizes less than or equal to 2112 octets.
Workaround: None.
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Symptom: Files placed on the volatile: partition cannot be copied or viewed by a user with the network-admin role.
Workaround: Log in to the MDS switch. with the same user that created the file and view or copy the file from the volatile partition.
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Symptom: When trying to copy a core file from an MDS switch to a location such as a TFTP server, the system asks for the core filename, but the actual filename is not visible in the CLI.
Workaround: To show the supervisor module on which a process crashed and show the process ID, enter the show cores command. To transfer the core file, enter the full command:
copy core://supervisor mod number/pid tftp:•
Symptom: When you use the run-script command in conjunction with conditional services such as TACACS+ and IVR, the script fails with command parse errors.
Workaround: None.
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Symptom: The Fabric Manager Configuration Analysis Tool shows mismatches when there are none.
Workaround: None.
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Symptom: If an MDS switch running Cisco SAN-OS 3.0(x) is configured so that the default gateway is on the FCIP network and there is a static route for the management LAN, then the FCIP tunnel might go down.
Workaround: Configure the default gateway on the management LAN and a static route for the FCIP tunnel.
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Symptom: Following a reboot of a SAN Volume Controller (SVC) node, all SVC Nx port registers are Fibre Channel 4 in the native VSAN, but some of them are not exported in the IVR VSAN.
Workaround: Issue the shut command followed by the no shut command.
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Symptom: Following an upgrade to Cisco SAN-OS 3.x in a chassis where Generation 2 modules are present and FC flows are present, if you create and delete FC flows several times, then FC flows might not be able to be created anymore. You might see the following message in Fabric Manager when you click Finish after creating an FC flow:
Snmp: acltcam: Unable to allocate memoryWorkaround: To resolve this issue, follow these steps:
6.
7.
8.
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Symptom: Fabric Manager does not allow you to create more than 2048 flows per switch. The actual limitation is 2048 flows for a Generation 2 module and 1024 flows for a Generation 1 module.
Workaround: None.
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Symptom: When an SSH session is opened for only a brief period, an MDS switch may send the following kinds of messages, indicating that the local tty is not available:
%DAEMON-3-SYSTEM_MSG: error: ioctl(TIOCSCTTY): Input/output error
%DAEMON-3-SYSTEM_MSG: error: open /dev/tty failed - could not set controlling tty: No such device or address
%DAEMON-3-SYSTEM_MSG: error: /dev/pts/0: No such file or directoryWorkaround: Set the logging level of the daemon message to 2 or higher.
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Symptom: An association call from a VSAN to its logical switch returns a particular WWN, but an association call from the physical system to the virtual system does not return the same WWN, which indicates that the logical switch is not associated to the physical switch.
Workaround: None.
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Symptom: When a device is removed from remote switch, the device might still appear in the name server database, and the fcns refresh command might fail to remove the stale entry.
Workaround: To remove the state entry from the name server database, follow these steps:
1.
2.
3.
4.
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Symptom: After setting the clock from Fabric Manager (using SNMP), I/O timeouts were observed. The network time protocol (NTP) was not sending the notification that the clock had changed.
Workaround: Set the clock through the CLI.
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Symptom: If an interface index map is not programmed correctly, the Port Manager continues to bring up the port, which results in an ACL programming failure and the following error message:
%ZONE-2-ZS_TCAM_PROGRAMMING_FAILED: %$VSAN xxx%$ TCAM operation failed : Unknown, Reason: idxmap ioctl failureBecause of the programming failure, the port is effectively useless, even though it is up.
Workaround: None.
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Symptom: An SNMP Get-Next Request for the MIB object ip.ipAddrTable.ipAddrEntry.ipAdEntIfIndex on an MDS 9000 switch resolves by asking ifIndex for a loopback address. Because there is no hardware (ifIndex) for a loopback address, the ifIndex reply for this interface is skipped and the next possible instance of the object, which is IP-MIB::ipAdEntNetMask, is returned.
Workaround: There are two ways you can work around this issue. Do one of the following:
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–
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Symptom: If the startup configuration and the running configuration contain the same configuration items, but have differences in terms of format (spaces or empty lines), then the output of the show running-config diff command will not be blank.
Workaround: Carefully examine the output of the show running-config diff command to determine if the startup configuration and running configuration are actually different, or if there are just format differences in the two files.
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Symptom: When you create a user with the name user, only the snmp-user is created and not the corresponding CLI user. There is no warning message about this.
Workaround: None.
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Symptom: For passwords authenticated by an AAA server, the MDS switch should inform the user when their password is about to expire.
Workaround: This is an enhancement. It is available only for CLI logins. Fabric Manager and Device currently do not support this feature.
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Symptom: Additional information is needed from the show tech-support command.
Workaround: None.
Related Documentation
The documentation set for the Cisco MDS 9000 Family includes the following documents. To find a document online, use the Cisco MDS SAN-OS Documentation Locator at: http://www.cisco.com/en/US/products/ps5989/products_documentation_roadmap09186a00804500c1.html.
For information on IBM TotalStorage SAN Volume Controller Storage Software for the Cisco MDS 9000 Family, refer to the IBM TotalStorage Support website: http://www.ibm.com/storage/support/2062-2300/Release Notes
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Compatibility Information
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Regulatory Compliance and Safety Information
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Hardware Installation
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Cisco Fabric Manager
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Command-Line Interface
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Troubleshooting and Reference
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Installation and Configuration Note
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Obtaining Documentation, Obtaining Support, and Security Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.
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Posted: Tue Oct 23 12:04:54 PDT 2007
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