[Openstack] [swift] RAID Performance Issue

Hua ZZ Zhang zhuadl at cn.ibm.com
Wed Dec 19 08:19:25 UTC 2012


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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