This is really a two-part question, as I am going to open a second thread about suggestions for how to best add an SSD to an existing zpool.
I have a FreeBSD 8 system that is running ZFS on root. It's an all purpose server - MySQL (several gigabytes of database), Samba/Netatalk file share, and Apache. Nothing terribly busy, mostly for a small company intranet.
Here's the
disk2 and disk3 were added a year or so after the pool was created. And dmesg:
What's the best way for me to get a good benchmark of performance on the zpool (and possibly even network transfer performance), so I'm not just going by impressions and user reports?
I have a FreeBSD 8 system that is running ZFS on root. It's an all purpose server - MySQL (several gigabytes of database), Samba/Netatalk file share, and Apache. Nothing terribly busy, mostly for a small company intranet.
Here's the
zpool status:
Code:
xeon# zpool status
pool: zroot
state: ONLINE
scan: scrub repaired 256K in 15h14m with 0 errors on Sat May 17 08:13:11 2014
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
gpt/disk0 ONLINE 0 0 0
gpt/disk1 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
gpt/disk2 ONLINE 0 0 0
gpt/disk3 ONLINE 0 0 0
cache
gpt/cache0 ONLINE 0 0 0
errors: No known data errorsdisk2 and disk3 were added a year or so after the pool was created. And dmesg:
Code:
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <WDC WD2003FYYS-02W0B0 01.01D01> ATA-8 SATA 2.x device
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
ada1: <WDC WD2003FYYS-02W0B0 01.01D01> ATA-8 SATA 2.x device
ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada1: Command Queueing enabled
ada1: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
ada2 at ahcich2 bus 0 scbus2 target 0 lun 0
ada2: <WDC WD2002FYPS-02W3B1 04.01G02> ATA-8 SATA 2.x device
ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada2: Command Queueing enabled
ada2: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
ada3 at ahcich3 bus 0 scbus3 target 0 lun 0
ada3: <WDC WD2002FYPS-02W3B1 04.01G02> ATA-8 SATA 2.x device
ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada3: Command Queueing enabled
ada3: 1907729MB (3907029168 512 byte sectors: 16H 63S/T 16383C)
ada4 at ahcich5 bus 0 scbus5 target 0 lun 0
ada4: <SanDisk SDSSDXP480G R1311> ATA-8 SATA 3.x device
ada4: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 512bytes)
ada4: Command Queueing enabled
ada4: 457862MB (937703088 512 byte sectors: 16H 63S/T 16383C)What's the best way for me to get a good benchmark of performance on the zpool (and possibly even network transfer performance), so I'm not just going by impressions and user reports?
