Hello,
I've been having this problem with several storage servers running
mostly NFS clients.. (ESXi).
I/O seems to freeze/pause when write IOPS are high..
Today I noticed it while having the zilstat.ksh and iostat running;
zilstat.ksh
N-Bytes N-Bytes/s N-Max-Rate B-Bytes B-Bytes/s B-Max-Rate ops <=4kB
4-32kB >=32kB
56030032 56030032 56030032 100241408 100241408 100241408 820 0
30 790
2645352 2645352 2645352 5058560 5058560 5058560 50 0
11 39
68792 68792 68792 131072 131072 131072 1 0
0 1
0 0 0 0 0 0 0 0
0 0
0 0 0 0 0 0 0 0
0 0
6648152 6648152 6648152 12996608 12996608 12996608 125 0
19 106
10576 10576 10576 708608 708608 708608 11 0
3 8
663648 663648 663648 2539520 2539520 2539520 30 0
3 27
58724208 58724208 58732968 109330432 109330432 109330432 916 5
16 896
iostat -xnz 5 showed everything including busy drop to around zero
at the same time.
I can't really figure out how to go from here... ? I think it's
weird if it's a ZIL-problem since the ZIL-devices are not busy when
the problem occurs.
Also I've seen this on multiple machines connected to different
switches.
Any ideas?
Thanks,
Hans Jørgensen
Denmark.
_______________________________________________
OpenIndiana-discuss mailing list
[email protected]
http://openindiana.org/mailman/listinfo/openindiana-discuss
