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тАО03-21-2012 11:27 PM
тАО03-21-2012 11:27 PM
Hi,
I have a rp8420 server. I just restore the server from ignite tape. There are two physical disks in the server. After restore the server i saw both disks are under vg00. But from lvlnboot -v command i see that there is only one boot disk. Now i want to mirror that disk from the original boot disk. How can i do that? Should i have to run vgreduce command before execute the command "pvcreate -B" on that disk?
It's very urgent. I need solution ASAP.
BR\\Arafat
Solved! Go to Solution.
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тАО03-22-2012 12:24 AM
тАО03-22-2012 12:24 AM
Re: Mirrorng root disk on PA-RISK
# vgdisplay -v vg00
# lvlnboot -v
# setboot
Hope this helps!
Regards
Torsten.
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тАО03-22-2012 12:48 AM
тАО03-22-2012 12:48 AM
Re: Mirrorng root disk on PA-RISK
# vgdisplay -v /dev/vg00
--- Volume groups --- VG Name /dev/vg00 VG Write Access read/write VG Status available Max LV 255 Cur LV 11 Open LV 11 Max PV 16 Cur PV 2 Act PV 2 Max PE per PV 4479 VGDA 4 PE Size (Mbytes) 64 Total PE 8938 Alloc PE 1089 Free PE 7849 Total PVG 0 Total Spare PVs 0 Total Spare PVs in use 0 --- Logical volumes --- LV Name /dev/vg00/lvol1 LV Status available/syncd LV Size (Mbytes) 1024 Current LE 16 Allocated PE 16 Used PV 1 LV Name /dev/vg00/lvol2 LV Status available/syncd LV Size (Mbytes) 30720 Current LE 480 Allocated PE 480 Used PV 1 LV Name /dev/vg00/lvol9 LV Status available/syncd LV Size (Mbytes) 10240 Current LE 160 Allocated PE 160 Used PV 1 LV Name /dev/vg00/lvol3 LV Status available/syncd LV Size (Mbytes) 1024 Current LE 16 Allocated PE 16 Used PV 1 LV Name /dev/vg00/lvol20 LV Status available/syncd LV Size (Mbytes) 64 Current LE 1 Allocated PE 1 Used PV 1 LV Name /dev/vg00/lvol4 LV Status available/syncd LV Size (Mbytes) 7168 Current LE 112 Allocated PE 112 Used PV 1 LV Name /dev/vg00/lvol5 LV Status available/syncd LV Size (Mbytes) 2048 Current LE 32 Allocated PE 32 Used PV 1 LV Name /dev/vg00/lvol6 LV Status available/syncd LV Size (Mbytes) 4096 Current LE 64 Allocated PE 64 Used PV 1 LV Name /dev/vg00/lvol7 LV Status available/syncd LV Size (Mbytes) 4096 Current LE 64 Allocated PE 64 Used PV 1 LV Name /dev/vg00/lvol8 LV Status available/syncd LV Size (Mbytes) 4096 Current LE 64 Allocated PE 64 Used PV 1 LV Name /dev/vg00/lvol10 LV Status available/syncd LV Size (Mbytes) 5120 Current LE 80 Allocated PE 80 Used PV 1 --- Physical volumes --- PV Name /dev/dsk/c0t6d0 PV Status available Total PE 4469 Free PE 3380 Autoswitch On PV Name /dev/dsk/c2t6d0 PV Status available Total PE 4469 Free PE 4469 Autoswitch On ##############
lvlnboot -v Boot Definitions for Volume Group /dev/vg00: Physical Volumes belonging in Root Volume Group: /dev/dsk/c0t6d0 (0/0/0/2/0.6.0) -- Boot Disk /dev/dsk/c2t6d0 (0/0/0/3/0.6.0) Boot: lvol1 on: /dev/dsk/c0t6d0 Root: lvol3 on: /dev/dsk/c0t6d0 Swap: lvol2 on: /dev/dsk/c0t6d0 Dump: lvol2 on: /dev/dsk/c0t6d0, 0 Dump: lvol9 on: /dev/dsk/c0t6d0, 1 ##################################
setboot Primary bootpath : 0/0/0/2/0.6.0 Alternate bootpath : 0/0/0/3/0.6.0 Autoboot is OFF (disabled) Autosearch is OFF (disabled) Note: The interpretation of Autoboot and Autosearch has changed for systems that support hardware partitions. Please refer to the manpage.
########################
What should i do now?
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тАО03-22-2012 12:52 AM - edited тАО03-22-2012 01:01 AM
тАО03-22-2012 12:52 AM - edited тАО03-22-2012 01:01 AM
Re: Mirrorng root disk on PA-RISC
Disk /dev/dsk/c2t6d0 is part of vg00, but completely empty.
I would vgreduce this disk from vg00 first, then start over with mirroring process.
The appendix has all the steps (mirroring on PA_RISC - HP9000 systems):
When_Good_Disks_Go_Bad_WP
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c01911837/c01911837.pdf
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО03-22-2012 01:43 AM
тАО03-22-2012 01:43 AM
Re: Mirrorng root disk on PA-RISC
Should i deactivated the vg00 first or without deactivating the vg i can execute vgruduce???
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тАО03-22-2012 02:01 AM
тАО03-22-2012 02:01 AM
SolutionYes, you can use vgreduce without deactivating vg00.
vgreduce vg00 /dev/dsk/c2t6d0
In fact, deactivating vg00 would require unmounting all its filesystems first... and that is rather difficult with vg00, since it contains your root filesystem. (The only way to do something like that would be to reboot the system to LVM Maintenance Mode.)
Since the disk already was part of vg00, pvcreate has already been run on it... but apparently the -B option was not used. So the next step is to remove the incorrect PV header:
pvremove /dev/rdsk/c2t6d0
Now the disk is in a completely unused state, and you can start following the instructions in the "When Good Disks go Bad" document linked by Torsten.
When you run pvcreate on the disk again, you must use the -B option as you want to make this disk capable of being a boot disk. Don't forget that option, or you will have to start over again:
pvcreate -B /dev/rdsk/c2t6d0
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тАО03-22-2012 03:03 AM
тАО03-22-2012 03:03 AM
Re: Mirrorng root disk on PA-RISC
pvremove is optional, you can also proceed with pvcreate -B ..., but this already a step of the procedure written in the appendix of the manual.
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!