hp workstations zx6000, hp server rx2600 - operation and maintenance guide

Product Information
Hot-Swappable/Pluggable Devices
Chapter 1
28
• If the disk was defective at vgchange time, the following messages will be printed
one or more times:
WARNING:
VGDISPLAY: WARNING: COULDN’T QUERY PHYSICAL VOLUME
“/DEV/DSK/cXtXdX”
THE SPECIFIED PATH DOES NOT CORRESPOND TO PHYSICAL VOLUME
ATTACHED TO THE VOLUME GROUP.
VGDISPLAY: WARNING: COULDN’T QUERY ALL OF THE PHYSICAL
VOLUMES
• If you see these messages, the disk was defective at the time the volume group was
activated.
Otherwise, your disk became defective after the vgchange and you must continue
with step 2 of this procedure.
Step 2
• Reduce any logical volumes that have mirror copies on the faulty disk so that they no
longer mirror onto that disk (note the -A n option). This will take a several minutes.
lvreduce -m 0 -A n <LV name> /dev/dsk/<hard drive>
(for 1-way mirroring)
For example:
lvreduce -m 0 -A n /dev/vg00/stand /dev/dsk/c2t5d0
lvreduce -m 0 -A n /dev/vg00/swap /dev/dsk/c2t5d0
lvreduce -m 0 -A n /dev/vg00/ /dev/dsk/c2t5d0
The number of logical volumes that this step needs is variable. For instance, on a
mirror of a root disk you should have at least three logical volumes: /swap (is
lvol2), and / (is lvol3). Note that if your root mirror disk dies, you need to do the
following:
— Go to your system’s “EFI Boot Manager” menu and select the Primary HP-UX
Boot menu item.
— Type boot -lq at the HPUX> prompt and press Enter.
The -lq option stands for loss of quorum. Once this procedure has been completed
the system will boot.
Step 3
• Replace the faulty disk.
•Doanioscan on the replaced disk to insure that it is accessible and also as a double
check that it is a proper replacement.
For example:
ioscan /dev/dsk/c2t5d0