HP L1000 - 9000 - 0 MB RAM, User Manual

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Chapter 7
Removing and Replacing Components
Individual Component Remove/Replace Instructions
144
HotPlug Disk Drive Removal
The internal disk drives (up to four) are located at the front right side of the server (as you are facing it).
When proper software and hardware procedures are followed, internal disk drives can be removed and
replaced while the server is running.
The procedures in this section are in two parts, a HotSwap Software Procedure and a HotPlug Hardware
Procedure, for removing the disk from the server.
Before starting these procedures, you must have an up-to-date configuration backup file. Configuration
backup is performed by default each time an LVM command changes the LVM configuration. The default
backup files path is:
/etc/lvmconf/base_vg_name.conf.
The replacement disk drive must be the same product ID as the disk drive that is being replaced.
NOTE HP often uses different manufacturers for disks that have the same product number. The
HotSwap and HotPlug procedures will not update the disk drive’s internal information to that
of the replaced disk drive.
The replacement disk drive will have the same capacity and blocksize as the defective disk because they have
the same product number. The only field that can be incorrect is the string specifying the vendor’s name. This
will not affect the behavior of the LVM. If you desire to update the manufacturer’s name, the disks volume
group must be deactivated and reactivated.
HotSwap Software Procedure
Perform these software procedural steps to replace a HotPlug disk drive device:
Step 1. Determine whether LVM found the physical volume to be defective when the volume group was
activated.
If the volume was defective when the volume group was activated, vgchange will generate the
following message to the console:
WARNING
VGCHANGE: WARNING: COULDN’T ATTACH TO THE VOLUME GROUP PHYSICAL
VOLUME “/DEV/DSK/cXtXdX”
VGCHANGE: WARNING: COULDN’T ATTACH TO THE VOLUME GROUP PHYSICAL
VOLUME “/DEV/DSK/cXtXdX”
THE PATH OF THE PHYSICAL VOLUME REFERS TO A DEVICE THAT DOES NOT
EXIST, OR IS NOT CONFIGURED INTO THE KERNAL.
If you are unsure of the status of vgchange , check it with the vgdisplay command:
#vgdisplay <VG name>
For example:
# vgdisplay /dev/vg00
If the disk was defective when the vgchange command was entered, the following message will be
printed one or more times: