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From: "Jason H. Smith" <jason@oes.co.th>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] LVM on Raid 5 Performance?
Date: Mon May 19 01:25:02 2003	[thread overview]
Message-ID: <200305182148.27901.jason@oes.co.th> (raw)
In-Reply-To: <92091C60D5E2B74CB77C1FDB84F5FA76F079@s99mail02.okdhs.org>

I don't know if this answers your question, but maybe search the archives 
for my posts a few months ago.  On 2.4, there's a misfeature when using 
LVM with RAID5.  Basically, the two will cause your system not to cache 
any data, and to sync to disk immediately, once you create a snapshot 
volume.  Apparently, this will be addressed in 2.6.

So if you want RAID5 and LVM, consider hardware acceleration.

HTH

-- 
GPG: 03EE 9EB8 E500 874A F509  7B95 9B9A 84A1 26E9 4F79
http://www.ece.utexas.edu/~jhs/public_key.gpg

  parent reply	other threads:[~2003-05-19  1:25 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-14  9:07 [linux-lvm] LVM on Raid 5 Performance? Little, Chris
2003-05-15  3:01 ` Herbert Poetzl
2003-05-19  1:25 ` Jason H. Smith [this message]
2003-05-19  6:31   ` Herbert Poetzl
2003-05-24 19:11   ` Steven Lembark
  -- strict thread matches above, loose matches on Subject: below --
2003-05-15  9:51 Little, Chris
2003-05-15  3:49 Rick van der Linde
2003-05-15 16:45 ` Herbert Poetzl
2003-05-13  9:57 Little, Chris
2003-05-14  3:21 ` Herbert Poetzl
2003-05-13  8:36 Herbert Poetzl

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