Hello, Latest Firefly (and no, I can't safely upgrade before the cache is in). While running some high-intensity I/O (for the crappy test cluster that is) with "rados -p rbd bench 60 write -t 32 -b 4096" turning a cache-tier on (from forward to writeback mode) works as expected and without any noteworthy interruptions. However switching from writeback to forward gives me repeatedly this: --- error during benchmark: -5 error 5: (5) Input/output error --- Nothing in the ceph logs. So my questions are: a) known problem (or expected behavior, hopefully not) b) any ideas on how to further investigate this Regards, Christian -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Rakuten Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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