Re: Very low disk performance Highpoint 1820a
From: Eric Anderson (anderson_at_centtech.com)
Date: 04/29/05
- Previous message: Steven Hartland: "Re: Very low disk read performance on 5.x ( was Very low disk performance Highpoint 1820a )"
- In reply to: Steven Hartland: "Re: Very low disk performance Highpoint 1820a"
- Next in thread: Peter Losher: "Re: Very low disk performance Highpoint 1820a"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Fri, 29 Apr 2005 13:08:57 -0500 To: killing@multiplay.co.uk
Steven Hartland wrote:
> ----- Original Message ----- From: "Scott Long" <scottl@samsco.org>
>
>>> Ok some real strange going on write performance is ~ 140MB/s:
[..snip..]
>>> where as read is ~42MB/s
[..snip..]
> So it doesn't seem like caching is an issue and as others are seeing
> similar performance issues on other RAID controllers is could well
> not be a driver issue but I'm not ruling that out as yet as it could be
> the same problem in each respective driver.
> So far Highpoint 1820a and 3ware ?? ( Pete can u fill in the blank here )
> are exhibiting the same issue.
As I posted earlier also, I'm seeing the same behavior to a Fiber
Channel RAID array (15 400GB SATA150 disks in RAID5 config). I'm using
a QLogic HBA connected directly to the SATA array.
Eric
-- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology A lost ounce of gold may be found, a lost moment of time never. ------------------------------------------------------------------------ _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org"
- Previous message: Steven Hartland: "Re: Very low disk read performance on 5.x ( was Very low disk performance Highpoint 1820a )"
- In reply to: Steven Hartland: "Re: Very low disk performance Highpoint 1820a"
- Next in thread: Peter Losher: "Re: Very low disk performance Highpoint 1820a"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
|
