The Active System Image

The drd clone command creates a bootable disk that is a copy of the volume group containing the root file system (/). The source of the drd clone command is the LVM volume group or VxVM disk group containing the root (/) and boot (/stand) file systems. For a system with an LVM root, the source does not need to reside on a single physical disk. For a system with a VxVM root, all volumes in the root disk group must reside on every physical disk in the root group. Thus, each disk must be a mirror of every other disk. The target must be a single physical disk large enough to hold all volumes in the root group. In addition, a mirror for the target may be specified. For more details, see the Using the Dynamic Root Disk Toolset white paper, available at: http://docs.hp.com/en/oshpux11iv2.html#Dynamic%20Root%20Disk

Because the drd clone operation clones a single group, systems with file systems to be patched must not reside in multiple volume groups. (For example, if /stand resides in vg00 and /var resides in vg01, the system is not appropriate for DRD.)

For additional information about source and target disks, see the drd-clone (1M) manpage (man drd-clone) and the Using the Dynamic Root Disk Toolset white paper, available at: http://docs.hp.com/en/oshpux11iv2.html#Dynamic%20Root%20Disk.

	NOTE: After creating a DRD clone, your system has two system images—the original and the cloned image. Throughout this document, the system image that is currently in use is called the active system image. The image that is not in use is called the inactive system image.