[linux-lvm] RAID5 + LVM stillborn

Jason Smith jhs at openenterprise.biz
Tue Feb 25 05:20:02 UTC 2003


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Hi.  I have a quick RAID 5 question.  Sort of a repost, but I can't get an 
answer.

May I assume that LVM does not support RAID 5 due to the serialization 
problems?  Theoretically, 2.6 will have a fix but this has already been a 
problem for over two years.  And if 2.6 develops like 2.4 did, then we should 
not use it for production for many months after its release.

Thus it looks like people will not be able to deploy these types of Linux file 
servers for some time hence -- a terrible thought.

For example, testing with LVM2 and DM from CVS, I made one snapshot under 
light network load and it brought my machine to a complete stop, then oopsed 
it.  I'm glad to help if any developers are interested.

Thanks.

- -- 
Jason Smith
Open Enterprise Systems
Bangkok, Thailand
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