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тАО09-19-2002 05:32 AM
тАО09-19-2002 05:32 AM
Hi,
Would someone comment how to tell the readiness of disk mirrored, hardware and software point of views?
From software to check:
swlist |grep -i mirror
From hardware??
Does the software need to buy first? Strangly the server is the new one, with no clue of whether the 2 internal drives are mirrored or not.
Appreciated.
Steven
Would someone comment how to tell the readiness of disk mirrored, hardware and software point of views?
From software to check:
swlist |grep -i mirror
From hardware??
Does the software need to buy first? Strangly the server is the new one, with no clue of whether the 2 internal drives are mirrored or not.
Appreciated.
Steven
Steve
Solved! Go to Solution.
3 REPLIES 3
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тАО09-19-2002 05:36 AM
тАО09-19-2002 05:36 AM
Solution
To see if your drives are mirrored;
lvlnboot -v
If it lists 2 boot drives and 2 drives for root, swap etc. then theyre mirrored.
To check each lvol do;
for i in 1 2 3 4 5 6 7 8
do
lvdisplay /dev/vg00/lvol${i} | grep -i mirror
done
If theyre mirrored then it will return mirror copies = 1
lvlnboot -v
If it lists 2 boot drives and 2 drives for root, swap etc. then theyre mirrored.
To check each lvol do;
for i in 1 2 3 4 5 6 7 8
do
lvdisplay /dev/vg00/lvol${i} | grep -i mirror
done
If theyre mirrored then it will return mirror copies = 1
Im from Palmerston North, New Zealand, but somehow ended up in London...
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тАО09-19-2002 05:37 AM
тАО09-19-2002 05:37 AM
Re: Mirror Disk Readiness Help
MirrorDisk is not installed by default unless you've paid for it. It is held on the application CD's, but it codeword protected to make sure that it's not used without authorisation.
swlist -l fileset | grep -i mirror would show
LVM.LVM-MIRROR-RUN B.11.00 LVM-MIRROR-RUN
If it was installed on an HP-UX 11 system.
To check if a volume is mirrored, use
lvdisplay -v /dev/vgXX/lvolYY | more
If it's mirrored, you will see
Mirror copies 1
and
--- Logical extents ---
LE PV1 PE1 Status 1 PV2 PE2 Status 2
00000 /dev/dsk/c6t0d0 00000 current /dev/dsk/c7t0d0 00000 current
00001 /dev/dsk/c6t0d0 00001 current /dev/dsk/c7t0d0 00001 current
00002 /dev/dsk/c6t0d0 00002 current /dev/dsk/c7t0d0 00002 current
00003 /dev/dsk/c6t0d0 00003 current /dev/dsk/c7t0d0 00003 current
Where PV1 and PV2 are the mirrored disks
swlist -l fileset | grep -i mirror would show
LVM.LVM-MIRROR-RUN B.11.00 LVM-MIRROR-RUN
If it was installed on an HP-UX 11 system.
To check if a volume is mirrored, use
lvdisplay -v /dev/vgXX/lvolYY | more
If it's mirrored, you will see
Mirror copies 1
and
--- Logical extents ---
LE PV1 PE1 Status 1 PV2 PE2 Status 2
00000 /dev/dsk/c6t0d0 00000 current /dev/dsk/c7t0d0 00000 current
00001 /dev/dsk/c6t0d0 00001 current /dev/dsk/c7t0d0 00001 current
00002 /dev/dsk/c6t0d0 00002 current /dev/dsk/c7t0d0 00002 current
00003 /dev/dsk/c6t0d0 00003 current /dev/dsk/c7t0d0 00003 current
Where PV1 and PV2 are the mirrored disks
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тАО09-19-2002 05:49 AM
тАО09-19-2002 05:49 AM
Re: Mirror Disk Readiness Help
Hi Steven:
In addition to the information already provided, remember that LVM implements mirroring at the *software* level with the optional product 'MirrorDisk/UX'.
Remember, too, that LVM mirroring is done at the *logical volume* level, not the physical disk nor volume group level.
That said, VxVM also offers mirroring cabability as an optional product:
http://docs.hp.com/hpux/onlinedocs/B7961-90023/B7961-90023.html
Regards!
...JRF...
In addition to the information already provided, remember that LVM implements mirroring at the *software* level with the optional product 'MirrorDisk/UX'.
Remember, too, that LVM mirroring is done at the *logical volume* level, not the physical disk nor volume group level.
That said, VxVM also offers mirroring cabability as an optional product:
http://docs.hp.com/hpux/onlinedocs/B7961-90023/B7961-90023.html
Regards!
...JRF...
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