Stripping and mirror ?

[Jdamian]

Is there any way to mirror a stripped logical volume ?

Somebody told me a new Veritas product is able.

[James R. Ferguson · Accepted solution]

Hi:

The VxVM (VERITAS Volume Manager) supports both mirroring and striping on HP-UX 11.11. VxVM is an alternative to standard LVM. An excellent introduction to VxVM is at the link below.

http://docs.hp.com/hpux/onlinedocs/B7961-90001/B7961-90001.html

...JRF...

[Steve White_1]

In order to create mirrors in HP-UX youy have to have purchased the Mirror Disk/UX product. You then just type lvextend -m 1 /dev/vgxx/lvolx

[Jason VanDerMark]

I believe that only extent stripped volumes can be mirrored. Even then it is very slow during writes. There was some info about this topic in a previous post by someone else. I just found it at the url listed below.

http://forums.itrc.hp.com/cm/QuestionAnswer/1,1150,0x0d5fc5ea0230d411ade80090279cd0f9,00.html

Hope that this helps.

Regards
-Jason

[Wodisch]

Hello Damian,

in the beginning (HP-UX 9.0) LVM could not do that, but
since some LVM patch quite some time ago you can do
striped and mirrored LVs. But you need that patch.
Search for that in the patch list for your OS release.
Then you can do "lvcreate -m 1 -s 2 ..." or similiar.
HTH,
Wodisch