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04-22-2002 12:51 PM
04-22-2002 12:51 PM
Assume that the device files for the hard disks are c1t3d0, c1t4d0, c1t5d0, c1t6d0, c1t7d0, c1t8d0, c1t10d0, c1t11d0. What I think I need to do is this:
# pvcreate -f /dev/rdsk/c1t3d0
(for each disk)
# mkdir /dev/vgplexus
# mknod /dev/vgplexus/group c 64 0x010000
(making that number unique)
# vgcreate ???g pvg01 /dev/vgplexus /dev/dsk/c1t3d0 /dev/dsk/c1t5d0 /dev/dsk/c1t7d0 /dev/dsk/c1t10d0
# vgextend ???g pvg02 /dev/vgplexus /dev/dsk/c1t4d0 /dev/dsk/c1t6d0 /dev/dsk/c1t8d0 /dev/dsk/c1t11d0
and then continue on with the lvcreates, etc.
It's those vgcreate and vgextend commands I'm really not sure about.
Solved! Go to Solution.
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04-22-2002 12:57 PM
04-22-2002 12:57 PM
Solution# vgextend ???g pvg02 /dev/vgplexus /dev/dsk/c1t4d0 /dev/dsk/c1t6d0 /dev/dsk/c1t8d0 /dev/dsk/c1t11d0
Both the command looks good ! After you're done (before you create your LVs) you would want to check /etc/lvmpvg file to make sure the disks are in the PVGs and in the right order as you intended them to be.
Remember to use th "-s g" option in your lvcreate to enable PVG-strict mirroring. for example ..
# lvcreate -L 1200 -m 1 -s g -n lvol1 /dev/vgplexus
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04-22-2002 01:12 PM
04-22-2002 01:12 PM
Re: Creating physical volume groups?
Have a look at the following doc
Regards
Steve
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04-22-2002 02:27 PM
04-22-2002 02:27 PM
Re: Creating physical volume groups?
I too like the ease of maintenance that Physical Volume Groups offers. I'd offer one additional setup criteria -- when you do your 'vgcreate' specify some appropriate values for 'max_pe', 'max_pv', etc. Don't simply let these attributes default. Remember that once set these attributes cannot be changed without recreating the volume group. Therefore, plan for the future, especially given the versatility PVGs offer.
Regards!
...JRF...
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04-24-2002 05:12 AM
04-24-2002 05:12 AM