Lraid5 iozone: Difference between revisions

Revision as of 12:49, 1 August 2009

iozone

Quick speed tests:

# time dd if=/dev/zero of=/data/bigfile4 bs=64k count=10000
-rw-r--r--   1 root     root        6.1G Aug  1 17:34 bigfile4
real    0m18.391s
347.02 MB/s

Running iozone, compiled for 64bit Solaris.

Solaris 10 64-bit
# ./iozone -Rab local-test -i 0 -i 1 -+u -f /data/testfile-iozone -q 64k -n 32M -g 1G -z

Solaris 10 64-bit ZIL cache disabled

Temperature

After running iozone, and being up for a few hours. No HDD sleep, but it is nice to notice that it does power down the HDDs, and spin them back up as needed.

Please note that these are Sun Hitachi Deskstars 7200 500GB SATA-2 Hard-disks, sitting on top of my MacPro. I will actually use Green, slow spinning hard-disks personally. The case itself has good airflow though.

#   8:41pm  up  3:40,  1 user,  load average: 0.00, 0.00, 0.00

# c1t0d0p0  F402P6GMK66F  ATA      HITACHI HUA7250S  AC4A 44 C (111 F)
# c1t1d0p0  VN65ZAKNHKGH  ATA      HITACHI HDS7250S  AJ0A 45 C (113 F)
# c1t3d0p0  F402P6GP5L3F  ATA      HITACHI HUA7250S  AC4A 44 C (111 F)
# c1t6d0p0  C510RJ0NRDSE  ATA      Hitachi HDP72505  A5CA 42 C (107 F)
# c1t7d0p0  C510RJ0NS1DE  ATA      Hitachi HDP72505  A5CA 41 C (105 F)

I sure wired the SATA ports sanely :)

@@ Line 29: / Line 29: @@
 === Temperature ===
-After running iozone,a nd being up for a few hours. No HDD sleep, but it is nice to notice that it does power down the HDDs, and spin them back up as needed.
+After running iozone, and being up for a few hours. No HDD sleep, but it is nice to notice that it does power down the HDDs, and spin them back up as needed.
 Please note that these are Sun Hitachi Deskstars 7200 500GB SATA-2 Hard-disks, sitting on top of my MacPro. I will actually use Green, slow spinning hard-disks personally. The case itself has good airflow though.