yikes. this was supposed to read:
> while c8t50014EE6561DDB4Cd0 is extremely slow (not full) and probably making > the biggest impact on the pool at the moment, you need to consider that pool > is also extremely full. the NAS pool is 95% utilized (1.15T/22.4T*100). For > best performance try reducing storage utilization below 70%. Your zpool is > spending a lot of time waiting for spinning rust to circle around so it can > write to some free blocks. On Oct 30, 2013, at 9:56 AM, jason matthews <[email protected]> wrote: > > > while c8t50014EE6561DDB4Cd0 is extremely full and probably making the biggest > impact on the pool at the moment, you need to consider that pool is also > extremely full. the NAS pool is 95% utilized (1.15T/22.4T*100). For best > performance try reducing storage utilization below 70%. Your zpool is > spending a lot of time waiting for spinning rust to circle around so it can > write to some free blocks. > > > j. > > On Oct 30, 2013, at 8:28 AM, Laurent Blume <[email protected]> wrote: > >> On 30/10/13 15:29, Jim Klimov wrote: >>> In the posted output, c8t50014EE6561DDB4Cd0 consistently has large >>> service times and percent-busy, while its other values are on par >>> with those of other drives (KBs and IOs read/written). >> >> My take on this is that the other values are actually the other drives >> aligning their performance on the slowest one. >> So basically, in a given pool, kr/s, kw/s are always going to be the same, >> no matter what, and they'll be the speed of whatever drive is slowest in the >> pool. The asvc_t and %b, however, will designate the culprit. >> >>> See in FMA (i.e. "fmdump") or plain "dmesg" (/var/adm/messages*) >>> if there are reports of it being broken or otherwise already >>> suspected by the system? Possibly, "iostat -En" would show a >>> non-zero counter as well? >> >> iostat -Exn then smartctl, yup. >> >> Laurent >> >> >> _______________________________________________ >> OpenIndiana-discuss mailing list >> [email protected] >> http://openindiana.org/mailman/listinfo/openindiana-discuss > > > _______________________________________________ > OpenIndiana-discuss mailing list > [email protected] > http://openindiana.org/mailman/listinfo/openindiana-discuss _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
