On 27 April, 2011 - Matthew Anderson sent me these 3,2K bytes: > 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
Btw, this disk seems alone, unmirrored and a bit small..? > cache - - - - - - > c8t3d0 59.4G 3.88M 113 64 6.51M 7.31M > c8t1d0 59.5G 48K 95 69 5.69M 8.08M > > > Thanks > -Matt > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss /Tomas -- Tomas Ögren, st...@acc.umu.se, http://www.acc.umu.se/~stric/ |- Student at Computing Science, University of Umeå `- Sysadmin at {cs,acc}.umu.se _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
