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LVM mirroring between two eva5000

 
Mme Jonnaert
Contributor

‎03-05-2004 03:05 AM

‎03-05-2004 03:05 AM

LVM mirroring between two eva5000

hi,
we want to mirror applications with lvm, but under 2 eva5000 on different room (on a SAN environnement)Are there some specifics lvm parameters or mount options to use in this case?
Our installer want to use lvm sync write (?)
But i'm afraid, there are some performance problem Have you any experiences?
thanks for your answer
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Sridhar Bhaskarla
Honored Contributor

‎03-05-2004 03:12 AM

‎03-05-2004 03:12 AM

Re: LVM mirroring between two eva5000

Hi,

Default should work fine. By default "lvextend -m x /dev/vgxx/lvolx" will extend the mirrors with MWC (Mirror Write Cache on) so during the activation, it will use it to sync up the mirrors. Other than this, there isn't much you can specify while extending the mirrors.

I never heard 'lvm sync write' in LVM. It may be a synonym to something.

-Sri
You may be disappointed if you fail, but you are doomed if you don't try
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