On 22/10/2015 11:27, Gabriele Bulfon wrote:
Hi, I have a falining sata device inside a mirrored zpool. Shouldn't I have failures on the zpool device too? Any big file copy on to the mirror will make the system VERY slow, and I have to kill the cp. How can I dig more the problem? sonicle@xstreamserver:~# iostat -e ---- errors --- device s/w h/w trn tot sd0 0 5 0 5 sd1 0 0 0 0 sd2 0 0 0 0 sd3 0 0 0 0 sd4 0 0 0 0 sd5 0 0 0 0 sd6 0 0 0 0 sd7 0 0 0 0 sd13 0 33 0 33 nfs1 0 0 0 0 sonicle@xstreamserver:~# kstat -n sd13,err module: sderr instance: 13 name: sd13,err class: device_error Hard Errors 33 Illegal Request 223 Media Error 24
Not necessary to dig more, that disk is going south, get a new one. If you trust your other disk, try 'zpool offline' on the failing one and draw a backup quickly before replacing. You can 'set sd:sd_io_time = 0x20' in /etc/system (or via mdb for immediate effect to shorten the outages, but that disk will plague you indefinitely until it finally dies (which can last several weeks, we had this pest a couple of times this year). -- Dr.Udo Grabowski Inst.f.Meteorology & Climate Research IMK-ASF-SAT http://www.imk-asf.kit.edu/english/sat.php KIT - Karlsruhe Institute of Technology http://www.kit.edu Postfach 3640,76021 Karlsruhe,Germany T:(+49)721 608-26026 F:-926026
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