LVM and VxVM

is it possible to use vxvm and lvm together ?

 
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bond007
Advisor

is it possible to use vxvm and lvm together ?


Hi all,

Is it possible to use vxvm and lvm together in a same system?

Thanks in advance,

Bond
10 REPLIES 10
Senthil Kumar .A_1
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

Hi,

The answer is yes.

Regards,
Senthil
Let your effort be such, the very words to define it, by a layman - would sound like a "POETRY" ;)
Arunvijai_4
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

Hi Bond,

Yes, It is possible to do that.

-Arun
"A ship in the harbor is safe, but that is not what ships are built for"
Senthil Kumar .A_1
Honored Contributor
Solution

Re: is it possible to use vxvm and lvm together ?

Hi again,

11.00 to 11.23 :

a)root disk on LVM, other FS could be on VXVM

b)only LVM.

11.23 onwards :

a) root disk could be on VXVM(rootability) with a option of other FS in LVM.

b) root disk could be on LVM ,optionally other FS in VXVM.

c) Only VXVM

or d) only LVM

Regards,
Senthil
Let your effort be such, the very words to define it, by a layman - would sound like a "POETRY" ;)
Devender Khatana
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

Hi,

Yes it is quite possible. Upto Vxfm3.5 rootdg was mendatory which need not be the one having your OS file systems but from VxVM 4.0 onwards which is supported in HPUX 11iV2 Sept 2005 onwards, you need not to have rootdg.

You can even convert from a LVM VG to VxVM dg.

HTH,
Devender
Impossible itself mentions "I m possible"
Mridul Shrivastava
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

U can use LVM & VxVm together but one disk can be maintained either by LVM or VxVM.
U can't manage one disk both by LVM &VxVM.
Time has a wonderful way of weeding out the trivial
Sivakumar TS
Honored Contributor

Re: is it possible to use vxvm and lvm together ?


Hi,

It is possible. make sure you dont mixup with the disks, and also the LVM disks may appear as INVALID in vxdisks list..dont get panic.

Regards,

Siva.
Nothing is Impossible !
Geoff Wild
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

Yes - but not on the same disk.

Docs on VxVM:

http://docs.hp.com/en/oshpux11iv2.html#VxVM

Rgds...Geoff
Proverbs 3:5,6 Trust in the Lord with all your heart and lean not on your own understanding; in all your ways acknowledge him, and he will make all your paths straight.
Alzhy
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

Si, Yes, Ja! In fact that is how we've been doing it on our 11.11 environments.

We use LVM for our system and swap disks.

We use VxVM for all the rest (mostly SAN disk storage.)

The reason mainly why we sticked wth LVM was historical.. we started off mainly with LVM and migrated to VxVM. We decided it will be less trouble leaving the OS and swap disks managed by LVM so we do not have to change our DR, Ignite and OS recovery procedures.

Note that at 11.11 (which can only go up to VxVM 3.5) -- a small unused rootdg diskgroup is necessary even if you will not use VxVM to manage your OS/swap disks...
Hakuna Matata.
Rick Garland
Honored Contributor

Re: is it possible to use vxvm and lvm together ?

Yes you can. You will need to be aware of which disk is running which disk management as this could have an impact on some maintenance aspects. Example, if you do vgconf backups, this will not include the VxVM disks.