Carlos E. R. wrote:
On 2017-05-03 16:39, Peter Suetterlin wrote:
So the big question is what is wrong with the SSD RAID? Is it the number of disks, the LSI card, the size of the volume? Did anyone see similar problems before? Any input is highly welcome :)
I don't use big iron myself, but an idea: what mount options do you use?
Yuck, there's always some info you forget to add.
In particular, I'm thinking about the absence of "noatime". It's absence makes each "read" of a file slower, having to write the time to disk.
But noatime is explicitly specified, yes. And even if not, the default would be relatime which, following the manpage, should be almost the same...
In any case, just post here the mount lines of all your mentioned arrays, so that people here can take those into consideration.
transport1:/data/disk2/ISP # mount|egrep md[01] /dev/md0 on /data/disk1 type xfs (rw,nodev,noatime,attr2,inode64,sunit=1024,swidth=15360,noquota) /dev/md1 on /data/disk2 type xfs (rw,relatime,attr2,inode64,sunit=1024,swidth=5120,noquota) md1 is the HD one - that was added on the fly and is mounted with 'default'
Then, I would point you as well to the XFS mail list. They are very nice and helpful. The volume is sometimes higher because they post also PATCH mails. And the subject line lacks a list identifier.
Yeah, I wasn't sure (and still not am) wether this is (only) an XFS issue. And try to keep the number of subscribed lists low :o Pit -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org