[Openstack] [swift] RAID Performance Issue

JuanFra Rodriguez Cardoso juanfra.rodriguez.cardoso at gmail.com
Wed Dec 19 09:12:14 UTC 2012

Hi Zang:

Basically, it makes no sense to use Swift on top of RAID because Swift just
delivers replication schema.


2012/12/19 Hua ZZ Zhang <zhuadl at cn.ibm.com>

> Hi,
> I have read the admin document of Swift and find there's recommendation of
> not using RAID 5 or 6 because swift performance degrades quickly with it.
> Can anyone explain why this could happen? If the RAID is done by hardware
> RAID controller, will the performance issue still exist?
> Anyone can share such kind of experience of using RAID with Swift?
> Appreciated for any suggestion from you.
> -Zhang Hua
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