Date: Mon, 25 Apr 2005 12:22:15 +0200 From: Julien Lirochon <jlirochon@cyanide-studio.com> To: freebsd-hardware@freebsd.org Subject: looking for a good sata or scsi raid 0/1 controller Message-ID: <426CC4D7.2070101@cyanide-studio.com>
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Hello,
I'm looking for a good raid controller, with good driver support,
something I could really rely on !
I have some problems with my 3ware 8006-2 on freebsd 5.3 branch.
Actually the box is a p4-3000 hyperthreaded, the 3ware card is running
raid1 with 2 maxtor 80go drives. Acually the traffic on the card is less
than 2 MB/s.
When the number of transactions/s a value around 70, the controller
seems to "lag", the average time par transaction can be more than 10
seconds ! The box also reboot at random intervals giving no messages in
the logs.
I don't know if the problem comes from the disks or from the 3ware card.
If someone could post iostat values I can expect with other raid cards
and/or other disks, it would be great :)
thanks,
Julien
iostat -o 1 output :
tty twed0 cpu
tin tout sps tps msps us ni sy in id
0 392601 86 465 71 0 28 1 0
0 1201891 61 877 63 0 37 0 0
0 401820 58 1268 31 0 19 1 50
0 401843 65 1591 31 0 8 0 60
0 402004 66 1411 55 0 10 0 34
0 401925 65 1155 40 0 16 0 44
0 401911 62 870 33 0 11 0 57
0 401776 65 1077 17 0 13 0 70
6 652021 66 1303 22 0 14 0 64
1 422240 89 1074 30 0 37 1 32
0 401660 59 815 9 0 5 1 84
0 401882 61 1630 6 0 2 0 91
0 401775 60 2501 9 0 12 0 79
0 401718 61 3015 0 0 0 0 99
0 401973 62 3064 0 0 1 0 99
0 402440 76 3451 0 0 1 0 99
0 407480 234 4536 9 0 8 1 82
0 402631 82 5376 2 0 2 0 97
0 402536 79 6408 0 0 0 0 99
0 402599 81 7379 0 0 0 0 100
0 412250 70 8385 0 0 0 0 100
0 1202060 64 9407 1 0 0 0 99
0 402314 7210433 0 0 0 0 100
0 411981 6311387 0 0 0 0 100
0 411244 6410001 60 0 17 0 23
0 401014 48 5712 74 0 25 1 0
0 401779 91 3.6 72 0 28 0 0
0 402582 97 16.9 65 0 34 1 0
0 402371 90 45.1 56 0 41 3 0
0 401826 61 792 40 0 15 1 44
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