[Lustre-discuss] OSS and MDS resilience to power failures

Alexander Oltu Alexander.Oltu at uni.no
Fri Jan 13 03:01:18 PST 2012


We are going to have a Lustre setup with around 1000 clients. Due to a
power cable constraints we are not able to provide power to OSS and MDS
servers from UPS.

Therefore the question is how resilient is Lustre to OSS and/or MDS
power failures? 

We have quite few thunderstorms here during summer with short power
interruptions. I understand that ext4 is a journaling filesystem and
should be more or less stable to power interruptions. But the real
practice can be different. I believe that some of you have experience
of running OSS and MDS without UPS and can shed some light on this

Thank you,

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