Compex Systems Advanced SerialRAID Adapters SA33-3285-02 - Manual (Page 182)

c. If the dump logical volume and the boot logical volume are copied, a warning is
displayed. You must delete the copies of these logical volumes after the copy
volume group has been created.
d. If the logical volume that you want to copy has a file system loglv that is
located in a different volume group, you cannot copy the logical volume.
2. The command searches for suitable RAID-Copy arrays that you have used SMIT
or ssaraid commands to create previously, or it searches for appropriate free disk
drives. It then either checks your RAID-Copy arrays, or automatically creates
RAID-Copy arrays from the free disk drives.
3. The command either automatically prepares suitable RAID-Copy disk drives or
checks the RAID-Copy arrays that you have used SMIT or ssaraid commands to
create.
4. The copy disk drives are coupled to the arrays, and the adapter copies the data to
the copy disk drives.
5. When the copy operation is complete, the command waits for an external trigger.
6. The command temporarily disables the fast-write cache (if enabled), and flushes
the data to disk drive.
7. The command then forces the parent volume group to synchronize. The
synchronize operation flushes all data from memory to disk, and stops all I/O
operations.
8. Now the copy can be uncoupled from the parent volume group. The uncouple
process makes a RAID-Copy array from the copy disk drives, and clears the PVID
of the copy disk drive. The uncouple process occurs on all hdisks that have been
copied; it can occur only when all I/O operations have stopped. The timing is very
important here; I/O operations must be stopped for the minimum time possible.
The copy disk drives are now unattached RAID-Copy arrays.
9. I/O is restarted to the volume group.
10. The fast-write cache is reenabled.
11. RAID-Copy hdisks are configured from the RAID-Copy arrays.
12. The recreatevg command is run against the new hdisks. This command:
v Changes the physical volume ID (PVID) references of the VGDA to suit the
PVIDs of the new hdisks
v Renames the copy volume group and assigns a new VGID
v Renames the copy logical volumes (default prefix fs can be used)
v Changes the root mount point for the file systems in the new volume group
(default prefix /fs can be used)
v Mounts the file systems
Flags
-m Mounts the file systems when the copy operation completes. The default is not
to mount the file systems.
-r Causes file systems that have been mounted to be read-only file systems.
-s Synchronizes the file systems; that is, flushes the data from the using-system
memory onto the disk drive.
162 User’s Guide and Maintenance Information
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