Hi! I've been monitoring my arrays lately, and to me it seems like the zfs allocator might be misfiring a bit. This is all on OI 147 and if there is a problem and a fix, i'd like to see it in the next image-update =D
Here's some 60s iostat cleaned up a bit: tank 3.76T 742G 1.03K 1.02K 3.96M 4.26M raidz1 2.77T 148G 718 746 2.73M 3.03M raidz1 1023G 593G 333 300 1.23M 1.22M and another pool: fast 130G 169G 2.72K 110 11.0M 614K mirror 37.9G 61.6G 1.35K 29 5.48M 154K mirror 27.6G 71.9G 1.36K 37 5.51M 203K mirror 64.1G 35.9G 3 42 21.8K 240K To me it seems that writes are not directed properly to the devices that have most free space - almost exactly the opposite. The writes seem to go to the devices that have _least_ free space, instead of the devices that have most free space. The same effect that can be seen in these 60s averages can also be observed in a shorter timespan, like a second or so. Is there something obvious I'm missing? -- - Tuomas _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
