[CentOS] LVM RAID0 and SSD discards/TRIM
Mihamina Rakotomandimby
mihamina at rktmb.orgTue Aug 20 10:28:23 UTC 2013
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On 2013-08-20 13:20, Dennis Jacobfeuerborn wrote: > On 19.08.2013 20:28, Joakim Ziegler wrote: >> So, from what I understand, if I can get this thing running on CentOS >> 6.4, I'll get kernel discard support, and discard support in LVM when >> running a RAID0. I'm using ext4. >> >> Is that correct? Will this solve my problem? I want to confirm that >> discard support works on a RAID0 of SSDs using LVM and ext4 before I >> start working on getting this legacy application to run on a newer CentOS. >> > What kind of SSD are you using? We use Intel 520's here and don't really > see these kind of slowdowns. Seeing his problem I remember I saw a similar complain about SSD and write rate. Searching my recent archives it appears its neither on such an "old" kernel nor on RAID0. For what it's worth: http://www.mail-archive.com/collectd@verplant.org/msg02683.html -- RMA.
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