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тАО12-11-2004 09:35 PM
тАО12-11-2004 09:35 PM
Disk Addition in VG
I need some suggestions.. Please help
I am having two rp3410 servers with 11i having latest patch bundles, configured in MCSG 11.16 Environemnt.
There is one VG( VG02) in cluster awrae mode, with one package running in production server, configured to fail over to development server. Failover is manual.
Now I have to add four disks in the that VG(VG02).This Vg is having two disks with 8 lvols. The distribution is as follows.
One lv in one disk(PV) having mirror copy in other disk(PV).
Now after adding four new disk, my VG will have 6 disks. I want a situation as follows.
One pv having a lv and having mirror copy in other .. In brief
Source Mirror
PV1 PV4
PV2 PV5
PV3 PV6
Is PVG strict mirroring is the only way to satisfy the above condition?
If yes how to do that?
My existing two disks are already having all the LVs configured.I have to add disks and extend the LV. This is what I supposed to do.
I know about exporting and importing in adoptive node after VG creation in Primary..
Please guide... if possible with a small diagram
Rgds
Dinu
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тАО12-12-2004 11:56 AM
тАО12-12-2004 11:56 AM
Re: Disk Addition in VG
Either add these PVs in different PVGs, make the lv pvg-strict (-s g) and then extend the mirrors. That will guarantee that the LV will not have mirrors on the same PV but doesn't guarantee a specific PV. So, create/extend the lvs manually by specifying the destination PV. For ex., Here is how you can create an LV with primary on PV2 and mirror on PV5.
lvcreate -n lvol2 vgxx
lvextend -L 1024 /dev/vgxx/lvol2 PV2
newfs -F vxfs /dev/vgxx/rlvol2
lvextend -m 1 /dev/vgxx/lvol2 PV4
-Sri
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тАО12-12-2004 02:22 PM
тАО12-12-2004 02:22 PM
Re: Disk Addition in VG
Hope it helps.
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тАО12-12-2004 03:07 PM
тАО12-12-2004 03:07 PM
Re: Disk Addition in VG
#pvcreate -f /dev/rdsk/cxtxdx
#pvcreate -f /dev/rdsk/cxtxdx
#pvcreate -f /dev/rdsk/cxtxdx
#pvcreate -f /dev/rdsk/cxtxdx
2. Create Vg
vgextend vgxx /dev/dsk/cxtxdx
3. Mirror
#lvextend -m 1 /dev/vgxx/lvname /dev/dsk/cxtxdx
and then, check the result
#vgdisplay -v vgxx
check mirror by
#lvdisplay -v /dev/vgxx/lvname
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тАО12-14-2004 03:41 AM
тАО12-14-2004 03:41 AM
Re: Disk Addition in VG
Rgds
Dinu