At 12:50 PM 3/4/2008, alan bryan wrote:
Hi,
I've got a new server with a 3ware 9550SXU with the
Battery. I am using FreeBSD 7.0-Release (tried both
4BSD and ULE) using AMD64 and the 3ware performance
for writes is just plain horrible. Something is
obviously wrong but I'm not sure what.
Not sure about 7.0, but I have this card on a 6.3 box. Doing
something simple like
% cat /dev/zero > big
% iostat -c 100
tty da0 pass0 cpu
tin tout KB/t tps MB/s KB/t tps MB/s us ni sy in id
0 0 53.92 6 0.31 0.00 0 0.00 3 0 0 0 96
3 197 4.00 1 0.00 0.00 0 0.00 0 0 0 0 100
1 64 127.94 1100 137.42 0.00 0 0.00 0 0 49 5 46
0 63 128.00 1012 126.50 0.00 0 0.00 2 0 34 5 59
0 63 128.00 969 121.13 0.00 0 0.00 1 0 30 2 66
0 62 127.85 758 94.67 0.00 0 0.00 1 0 26 4 69
0 61 127.82 1252 156.25 0.00 0 0.00 1 0 50 8 42
0 63 127.59 542 67.59 0.00 0 0.00 1 0 26 1 72
0 61 127.66 1026 127.90 0.00 0 0.00 0 0 47 5 49
1 87 127.56 513 63.97 0.00 0 0.00 0 0 19 4 77
0 61 0.00 0 0.00 0.00 0 0.00 0 0 0 0 100
Shows pretty OK write performance.
% dd if=/dev/zero of=/var/tmp/big bs=1024k count=1000
1000+0 records in
1000+0 records out
1048576000 bytes transferred in 8.646134 secs (121276863 bytes/sec)
This is on RAID10 on 4 Segate ST380811AS drives.
3ware device driver for 9000 series storage controllers, version: 3.60.04.003
twa0: <3ware 9000 series Storage Controller> port 0xac00-0xac3f mem
0xf4000000-0xf5ffffff,0xff2ff000-0xff2fffff irq 16 at device 3.0 on pci2
twa0: [GIANT-LOCKED]
twa0: INFO: (0x15: 0x1300): Controller details:: Model 9550SX-4LP, 4
ports, Firmware FE9X 3.01.01.028, BIOS BE9X 3.01.00.024
da0: <AMCC 9550SX-4LP DISK 3.01> Fixed Direct Access SCSI-3 device
da0: 100.000MB/s transfers
da0: 152566MB (312455168 512 byte sectors: 255H 63S/T 19449C)
I have write cache enabled and performance set for the StorSav. Its
in a PCI-x slot as well.
---Mike
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