On Wed, Aug 04, 2010 at 08:08:24PM +0800, Alex V. Petrov wrote: > ada2 at ahcich2 bus 0 scbus2 target 0 lun 0 > ada2: <WDC WD10EADS-00M2B0 01.00A01> ATA-8 SATA 2.x device > ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) > ada2: Command Queueing enabled > ada2: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C) > ada3 at ahcich3 bus 0 scbus3 target 0 lun 0 > ada3: <WDC WD10EADS-00L5B1 01.01A01> ATA-8 SATA 2.x device > ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) > ada3: Command Queueing enabled > ada3: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C) > ada4 at ahcich4 bus 0 scbus4 target 0 lun 0 > ada4: <WDC WD10EADS-00M2B0 01.00A01> ATA-8 SATA 2.x device > ada4: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) > ada4: Command Queueing enabled
Your ada3 disk is different from the other two. Can you please provide the output from the following 3 commands? camcontrol identify ada2 camcontrol identify ada3 camcontrol identify ada4 > vfs.zfs.cache_flush_disable=1 > vfs.zfs.zil_disable=1 I question both of these settings, especially the latter. Please remove them both and re-test your write performance. -- | Jeremy Chadwick j...@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
