> Eric Anderson wrote:
>
>> Amandeep wrote:
>>
>>> Hi all,
>>>
>>> I am using Tyan S2098 MB with 160GB Maxtor ATA  Drive and the
>>> transfer rate is very low. FreeBSD 5.3-Release.
>>> Any ideas what is going on here.
>>>
>>> The transfer rate is about 15MB/s
>>>
>>> when I run
>>> #dd if=/dev/zero of=/usr/junk bs=8192
>>>
>>> then do
>>> #iostat 1
>>
>>
>>
>> You should probably provide the appropriate information from dmesg
>> output, along with what you expect it to be, and the outputs of the dd
>> command.
>>
>> Eric
>>

Amandeep wrote:
Hi Eric,


Shouldnt it be around 54MB/s for a regular IDE drive.

Here is the output of dmesg and iostat

[..snip dmesg blob..]

IOSTAT

  tty             ad0             cpu
tin tout  KB/t tps  MB/s  us ni sy in id
  0   20 114.15  10  1.09   0  0  1  0 98
  0    0  0.00   0  0.00   0  0  0  0 100
  0    0  0.00   0  0.00   0  0  0  0 100
  1    3 128.00  21  2.60   0  0  3  0 97
  0    0 128.00 124 15.47   0  0  6  2 91

[..snip iostat blob..]

(please try to avoid top-posting, it's hard to follow)

What about other block sizes? Also - you should paste your actual dd output here too.

What's the model number of that drive? Maxtor claims (on one of their 160G drives) 17.8MB/s from inner diameter disk and 35.6MB/s for outer diameter for the 5400rpm drives.

Eric




-- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology A lost ounce of gold may be found, a lost moment of time never. ------------------------------------------------------------------------ _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"

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