How to extend VG00 from new inserted HD on SAN ?

[DnD_1]

Hi,

I need little help, never done this before. And the new HD is located on SAN with VxVM type.

Our goal : To increase LV of the /profile/backup

# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol9 58327040 57999436 316968 99% /profile/backup

Our questions,

1. We have inserted 4 news hard (257GB each) disks into the SAN. The information from SAM,

0/4/2/0.1.5.0.0.1.7 2 LVM vgelr01 13893 HP OPEN-E ^ ¦
0/4/2/0.1.5.0.0.10.0 2 LVM vgelr05 13893 HP OPEN-E ¦ ¦
0/4/2/0.1.5.0.0.10.1 2 LVM vgelr05 13893 HP OPEN-E ¦
0/4/2/0.1.5.0.0.10.2 2 LVM vgelr05 13893 HP OPEN-E
0/4/2/0.1.5.0.0.10.4 2 VxVM ... 263967 HP OPEN-E* ¦ ¦
0/4/2/0.1.5.0.0.10.5 2 VxVM ... 263967 HP OPEN-E* ¦ ¦
0/4/2/0.1.5.0.0.10.6 2 VxVM ... 263967 HP OPEN-E* ¦ ¦
0/4/2/0.1.5.0.0.10.7 2 VxVM ... 263967 HP OPEN-E* ¦

Can anyway please guide me on how to configure these new harddisk and extend the /LV of profile/backup

[Torsten. · Accepted solution]

1) you cannot merge vxvm and lvm disks in a single lvm volume group

2) you should not put data lvols into vg00

=>

so decide to create a new volume group (lvm or vxvm - it's up to you) with lvols and move your backup files to this location.

[DnD_1]

sorry for the rude entrance, click the submit button accidently.

anyway, i really have no idea about these VXVM file system, i tried to used SAM to extend the vg00 but it couldn't located the new HD.

anyone please guides.

thanks !!

[Jozef_Novak]

Hello,

as it was mentioned, if you want to extend the vg00 with these disks, you need to get them out of VxVM control and configure them into LVM.

If you want to keep the disks under VxVM, you have to create a VxVM disk group. In that case, you'll have to migrate the filesystem onto these disks.

You should also be thinking of moving any data that don't have something to do with the operating system out of vg00.

J.

[Torsten.]

>> You should also be thinking of moving any data that don't have something to do with the operating system out of vg00.


I totally agree as mentioned before.

Anyway, your current limits for vg00 will prevent the addition of larger disks anyway, so do as said, move your data to a new volume group.

[Ganesan R]

Hi

Think about this situation. If SAN is not availble in some point of time, then root VG also not get activated due to quorum.

It is best practice that we should have only internal disks on root VG and not to keep any data other than OS related in VG00.

But nothing will stop you to add SAN disks into root VG.