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тАО05-12-2003 04:37 AM
тАО05-12-2003 04:37 AM
We have a Jamaica array, and a disk which is mirroed has failed. It shows as NO_HW in ioscan.
Should I attempt to lvreduce -m0 on the logical volumes using this disk, then vgreduce to remove it from the volume group?
I don't want to even try if there is a chance of screwing up the live, running production database!
Solved! Go to Solution.
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тАО05-12-2003 04:43 AM
тАО05-12-2003 04:43 AM
Re: Failed disk (mirrored)
The Software Recovery Handbook, found via the Knlwledge Trees link, offers appropriate recovery procedures in the LFM chapter (#16):
http://www1.itrc.hp.com/service/iv/docDisplay.do?docId=/DE_SW_UX_swrec_EN_01_E/LVM.pdf
Regards!
...JRF...
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тАО05-12-2003 04:52 AM
тАО05-12-2003 04:52 AM
Solution1. vgcfgrestore -n
2. vgchange -a y
3. vgsync
Thats it. If its a bootable drive run mkboot on it afterwards. If step 1. fails run another ioscan first so the drive shows as CLAIMED (and not NO_HW).
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тАО05-12-2003 04:59 AM
тАО05-12-2003 04:59 AM
Re: Failed disk (mirrored)
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тАО05-12-2003 05:10 AM
тАО05-12-2003 05:10 AM
Re: Failed disk (mirrored)
You must be logged into the ITRC. Go to Maintenance and Support -> Navigate Knowledge Trees (under "self-solve tools") -> HP-UX Software Recovery Handbook.
Regards!
...JRF...
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тАО05-12-2003 05:11 AM
тАО05-12-2003 05:11 AM
Re: Failed disk (mirrored)
After removing the bad disk, don't forget an ioscan -fnCdisk.
In some cases ( if the disk is not complete failed ) the os will not notice that the disk is replaced. This can produce some strange effects.
after ioscan inster the new disk, and then do the rest ( vgcfgrestore, vgchange, vgsync and mkboot )
Thats all.
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тАО05-12-2003 05:13 AM
тАО05-12-2003 05:13 AM
Re: Failed disk (mirrored)
Currently the system is running, and I don't want to stop the application (dismount file systems or deactivate volume groups) unless necessary.
# vgdisplay -v vg01
--- Volume groups ---
VG Name /dev/vg01
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 2
Open LV 2
Max PV 16
Cur PV 2
Act PV 2
Max PE per PV 2171
VGDA 4
PE Size (Mbytes) 4
Total PE 4340
Alloc PE 4250
Free PE 90
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
--- Logical volumes ---
LV Name /dev/vg01/lvol17
LV Status available/stale
LV Size (Mbytes) 1500
Current LE 375
Allocated PE 750
Used PV 2
LV Name /dev/vg01/lvol18
LV Status available/stale
LV Size (Mbytes) 7000
Current LE 1750
Allocated PE 3500
Used PV 2
--- Physical volumes ---
PV Name /dev/dsk/c5t4d0
PV Status unavailable
Total PE 2170
Free PE 45
PV Name /dev/dsk/c5t0d0
PV Status available
Total PE 2170
Free PE 45
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тАО05-12-2003 05:17 AM
тАО05-12-2003 05:17 AM
Re: Failed disk (mirrored)
Paula
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тАО05-12-2003 02:34 PM
тАО05-12-2003 02:34 PM
Re: Failed disk (mirrored)
It will not shut down the volume groupt, that happens in other steps of the earlier posts in this thread.
A vgchange -a n /dev/vg## command will deactivaate a volume group.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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тАО05-12-2003 11:40 PM
тАО05-12-2003 11:40 PM
Re: Failed disk (mirrored)
I want to download the whole Software Recovery Handbook,instead of the individal chaper,could you please attach it for me ? than you.