Hi All,
I've run into a massive performance problem after upgrading to Solaris 11
Express from oSol 134.
Previously the server was performing a batch write every 10-15 seconds and the
client servers (connected via NFS and iSCSI) had very low wait times. Now I'm
seeing constant writes to the array with a very low throughput and high wait
times on the client servers. Zil is currently disabled. There is currently one
failed disk that is being replaced shortly.
Is there any ZFS tunable to revert Solaris 11 back to the behaviour of oSol 134?
I attempted to remove Sol 11 and reinstall 134 but it keeps freezing during
install which is probably another issue entirely...
IOstat output is below. When running iostat -v 2 that level is writes OP's and
throughput is very constant.
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
MirrorPool 12.2T 4.11T 153 4.63K 6.06M 33.6M
mirror 1.04T 325G 11 416 400K 2.80M
c7t0d0 - - 5 114 163K 2.80M
c7t1d0 - - 6 114 237K 2.80M
mirror 1.04T 324G 10 374 426K 2.79M
c7t2d0 - - 5 108 190K 2.79M
c7t3d0 - - 5 107 236K 2.79M
mirror 1.04T 324G 15 425 537K 3.15M
c7t4d0 - - 7 115 290K 3.15M
c7t5d0 - - 8 116 247K 3.15M
mirror 1.04T 325G 13 412 572K 3.00M
c7t6d0 - - 7 115 313K 3.00M
c7t7d0 - - 6 116 259K 3.00M
mirror 1.04T 324G 13 381 580K 2.85M
c7t8d0 - - 7 111 362K 2.85M
c7t9d0 - - 5 111 219K 2.85M
mirror 1.04T 325G 15 408 654K 3.10M
c7t10d0 - - 7 122 336K 3.10M
c7t11d0 - - 7 123 318K 3.10M
mirror 1.04T 325G 14 461 681K 3.22M
c7t12d0 - - 8 130 403K 3.22M
c7t13d0 - - 6 132 278K 3.22M
mirror 749G 643G 1 279 140K 1.07M
c4t14d0 - - 0 0 0 0
c7t15d0 - - 1 83 140K 1.07M
mirror 1.05T 319G 18 333 672K 2.74M
c7t16d0 - - 11 96 406K 2.74M
c7t17d0 - - 7 96 266K 2.74M
mirror 1.04T 323G 13 353 540K 2.85M
c7t18d0 - - 7 98 279K 2.85M
c7t19d0 - - 6 100 261K 2.85M
mirror 1.04T 324G 12 459 543K 2.99M
c7t20d0 - - 7 118 285K 2.99M
c7t21d0 - - 4 119 258K 2.99M
mirror 1.04T 324G 11 431 465K 3.04M
c7t22d0 - - 5 116 195K 3.04M
c7t23d0 - - 6 117 272K 3.04M
c8t2d0 0 29.5G 0 0 0 0
cache - - - - - -
c8t3d0 59.4G 3.88M 113 64 6.51M 7.31M
c8t1d0 59.5G 48K 95 69 5.69M 8.08M
Thanks
-Matt
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