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тАО12-20-2005 03:48 AM
тАО12-20-2005 03:48 AM
Disk mirroring is enabled on our HP-UX server running 11.11 U 9000/785. How do I test mirroring ? Basically to check both the disk has same data and other disk can boot incase of primary fails.
Thanks
Solved! Go to Solution.
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тАО12-20-2005 03:54 AM
тАО12-20-2005 03:54 AM
Re: Check disk mirror on the HPUX server
the mirrored disks. Mirrored logical volumes should show 2 used disks.
Do a lvdisplay -f on the logicial volume. It will list the logical blocks of the volume,
physicial mapping on each disk, and
syncronization status.
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тАО12-20-2005 03:57 AM
тАО12-20-2005 03:57 AM
Re: Check disk mirror on the HPUX server
the only way you can verify that the mirroring is going to work or is okay is by rebooting the server with your mirror disk and make sure the primary is out of the slot.
Hope this helps.
regds
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тАО12-20-2005 04:00 AM
тАО12-20-2005 04:00 AM
Re: Check disk mirror on the HPUX server
Output like:
# chkdisks
Logical Volume Filesystem Mirrored?
-------------- ---------- ---------
/dev/vg00/lvol1 /stand yes
/dev/vg00/lvol2 yes
/dev/vg00/lvol3 / yes
/dev/vg00/lvol4 /tmp yes
/dev/vg00/lvol5 /home yes
/dev/vg00/lvol6 /opt yes
/dev/vg00/lvol7 /usr yes
/dev/vg00/lvol8 /var yes
/dev/vg00/lvol9 /app yes
/dev/vg00/lvol10 /ops yes
/dev/vg00/lvol11 /data yes
/dev/vg00/lvol12 /opt/cctool yes
/dev/vg00/lvol13 /var/opt/perf/datafiles yes
/dev/vg00/lvol14 /usr/openv yes
/dev/vg00/lvpub yes
/dev/vg01/lvol2 /var/adm/crash yes
/dev/vg01/swap yes
lvlnboot -v to check if disk is bootable:
# lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/dsk/c20t5d0 (0/0/0/3/0.5.0) -- Boot Disk
/dev/dsk/c0t6d0 (1/0/0/3/0.6.0) -- Boot Disk
Boot: lvol1 on: /dev/dsk/c20t5d0
/dev/dsk/c0t6d0
Root: lvol3 on: /dev/dsk/c20t5d0
/dev/dsk/c0t6d0
Swap: lvol2 on: /dev/dsk/c20t5d0
/dev/dsk/c0t6d0
Dump: lvol2 on: /dev/dsk/c20t5d0, 0
Rgds...Geoff
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тАО12-20-2005 04:03 AM
тАО12-20-2005 04:03 AM
Re: Check disk mirror on the HPUX server
About booting:
be sure you put both disks in the boot search path:
$ setboot
Primary bootpath : 0/0/1/1.2.0
Alternate bootpath : 0/0/2/0.2.0
Autoboot is ON (enabled)
Autosearch is OFF (disabled)
Do a man of setboot...
All the best
Victor
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тАО12-20-2005 04:07 AM
тАО12-20-2005 04:07 AM
Re: Check disk mirror on the HPUX server
lvlnboot -v
This will tell ypu if the boot partition has been installed on both disks.
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тАО12-20-2005 04:51 AM
тАО12-20-2005 04:51 AM
Re: Check disk mirror on the HPUX server
Can you let me know
--- Physical volumes ---
PV Name /dev/dsk/c3t6d0
PV Status available
Total PE 4340
Free PE 674
Autoswitch On
PV Name /dev/dsk/c3t5d0
PV Status available
Total PE 4340
Free PE 674
Autoswitch On
What does it mean?
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тАО12-20-2005 04:57 AM
тАО12-20-2005 04:57 AM
Re: Check disk mirror on the HPUX server
Multiply the PE by PE Size (Mbytes) to get space in MB.
IE - if youe PE Size is 8, then your disk are 34720 MB in size with 5392 MB free.
Rgds...Geoff
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тАО12-20-2005 04:59 AM
тАО12-20-2005 04:59 AM
Re: Check disk mirror on the HPUX server
Pete
Pete
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тАО12-20-2005 05:01 AM
тАО12-20-2005 05:01 AM
Re: Check disk mirror on the HPUX server
Pete
Pete