Hi all,
I'm wondering if I could get some feedback on our Fibre Channel RAID Array performance. I'm seeing weird lags on this machine, and I'd like to track down where the problem is. I very well may have something misconfigured.
Here's what we're running:
Fibre Channel Card:
RAID Array:
Host Machine:
Benchmark Results:
Any thoughts?
I'm wondering if I could get some feedback on our Fibre Channel RAID Array performance. I'm seeing weird lags on this machine, and I'd like to track down where the problem is. I very well may have something misconfigured.
Here's what we're running:
Fibre Channel Card:
Code:
mpt0: <Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter> port 0xec00-0xecff mem 0xf3ef0000-0xf3efffff,0xf3ee0000-0xf3eeffff irq 32 at device 1.0 on pci11
mpt0: [ITHREAD]
mpt0: MPI Version=1.2.12.0
mpt0: mpt_read_cfg_header: Config Info Status 20
mpt1: <Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter> port 0xe800-0xe8ff mem 0xf3ed0000-0xf3edffff,0xf3ec0000-0xf3ecffff irq 33 at device 1.1 on pci11
mpt1: [ITHREAD]
mpt1: MPI Version=1.2.12.0
mpt1: mpt_read_cfg_header: Config Info Status 20RAID Array:
Code:
da0 at mpt1 bus 0 target 0 lun 0
da0: <APPLE Xserve RAID 1.51> Fixed Direct Access SCSI-5 device
da0: 100.000MB/s transfersHost Machine:
Code:
FreeBSD pe1950 7.2-STABLE FreeBSD 7.2-STABLE #0: Thu Nov 12 18:15:13 EST 2009 root@pe1950:/usr/obj/usr/src/sys/GENERIC amd64Benchmark Results:
Code:
$ sudo diskinfo -t /dev/da0
/dev/da0
512 # sectorsize
2400492453888 # mediasize in bytes (2.2T)
4688461824 # mediasize in sectors
291843 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
Seek times:
Full stroke: 250 iter in 2.564596 sec = 10.258 msec
Half stroke: 250 iter in 2.285568 sec = 9.142 msec
Quarter stroke: 500 iter in 3.020430 sec = 6.041 msec
Short forward: 400 iter in 1.144209 sec = 2.861 msec
Short backward: 400 iter in 2.620754 sec = 6.552 msec
Seq outer: 2048 iter in 0.547332 sec = 0.267 msec
Seq inner: 2048 iter in 0.569491 sec = 0.278 msec
Transfer rates:
outside: 102400 kbytes in 1.720995 sec = 59500 kbytes/sec
middle: 102400 kbytes in 1.167888 sec = 87680 kbytes/sec
inside: 102400 kbytes in 1.159042 sec = 88349 kbytes/secAny thoughts?