Hp StorageWorks 2300 Disk System Manuel d'utilisateur télécharger pdf (Page 113)

Removal and Replacement 113

Removal and Replacement

For example:

# vgcfgrestore -n /dev/vg00 /dev/rdsk/c2t4d0

If the host fails, repeat the step to ensure all configuration data is written to

the new disk.

Note If this replacement procedure is being performed now on another

host system and there is no need to execute any lvreduce

commands, then the configuration file can be updated with the

vgcfbackup command.

5 Enter the following command to attach the replaced disk to the active volume

group:

# vgchange -a y <volume group name>

For example:

# vgchange -a y /dev/vg00

6 Enter the lvextend command to transfer the mirrors onto the replaced disk. It

will take time to copy all of the original data to the mirrored extents. The

logical volumes are accessible to users’ applications for two-way mirroring

during this command.

# lvextend -m <mirror_copies> <LV name> physical volume path

For example, for two-way mirroring:

# lvextend -m 1 /dev/vg00/lvol4 /dev/dsk/c2t4d0

For three-way mirroring:

# lvextend -m 2 /dev/vg00/lvol5 /dev/dsk/c2t4d0

If the host fails during step 6, execute an lvdisplay command to determine if

the lvextend command was successful. If the command did not successfully

execute, reissue the command. Perform any other lvextend commands that

were not executed before the system failed.

At this point, the system should be fully functioning.

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Hp StorageWorks 2300 Disk System Manuel d'utilisateur Page 113