On Thu, 04 Oct 2007 12:46:05 -0400, Steve Cousins wrote:
> Andrew Clayton wrote:
> > On Thu, 4 Oct 2007 10:39:09 -0400 (EDT), Justin Piszcz wrote:
> >
> >
> > >> What type (make/model) of the drives?
> >> >
> > The drives are 250GB Hitachi Deskstar 7K250 series ATA-6 UDMA/100
> > A couple
On Thu, 4 Oct 2007 12:19:20 -0400 (EDT), Justin Piszcz wrote:
>
> 7K250
>
> http://www.itreviews.co.uk/hardware/h912.htm
>
> http://techreport.com/articles.x/8362
> "The T7K250 also supports Native Command Queuing (NCQ)."
>
> You need to enable AHCI in order to reap the benefits though.
Cheer
On Thu, 4 Oct 2007 12:20:25 -0400 (EDT), Justin Piszcz wrote:
>
>
> On Thu, 4 Oct 2007, Andrew Clayton wrote:
>
> > On Thu, 4 Oct 2007 10:10:02 -0400 (EDT), Justin Piszcz wrote:
> >
> >
> >> Also, did performance just go to crap one day or was it gradual?
> >
> > IIRC I just noticed one day tha
Andrew Clayton wrote:
On Thu, 4 Oct 2007 10:39:09 -0400 (EDT), Justin Piszcz wrote:
What type (make/model) of the drives?
The drives are 250GB Hitachi Deskstar 7K250 series ATA-6 UDMA/100
A couple of things:
1. I thought you had SATA drives
2. ATA-6 would be UDMA/133
Th
Steve Cousins wrote:
A couple of things:
1. I thought you had SATA drives
2. ATA-6 would be UDMA/133
Number 2 is not correct. Sorry about that.
Steve
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On Thu, 4 Oct 2007, Andrew Clayton wrote:
On Thu, 4 Oct 2007 10:10:02 -0400 (EDT), Justin Piszcz wrote:
Also, did performance just go to crap one day or was it gradual?
IIRC I just noticed one day that firefox and vim was stalling. That was
back in February/March I think. At the time the
On Thu, 4 Oct 2007, Andrew Clayton wrote:
On Thu, 4 Oct 2007 10:39:09 -0400 (EDT), Justin Piszcz wrote:
What type (make/model) of the drives?
The drives are 250GB Hitachi Deskstar 7K250 series ATA-6 UDMA/100
True, the controller may not be able to do it either.
What types of disks/con
On Thu, 4 Oct 2007 10:39:09 -0400 (EDT), Justin Piszcz wrote:
> What type (make/model) of the drives?
The drives are 250GB Hitachi Deskstar 7K250 series ATA-6 UDMA/100
> True, the controller may not be able to do it either.
>
> What types of disks/controllers again?
The RAID disks are curren
On Thu, 4 Oct 2007 10:10:02 -0400 (EDT), Justin Piszcz wrote:
> Also, did performance just go to crap one day or was it gradual?
IIRC I just noticed one day that firefox and vim was stalling. That was
back in February/March I think. At the time the server was running a
2.6.18 kernel, since then
On Thu, 4 Oct 2007, Andrew Clayton wrote:
On Thu, 4 Oct 2007 10:09:22 -0400 (EDT), Justin Piszcz wrote:
Is NCQ enabled on the drives?
I don't think the drives are capable of that. I don't seen any mention
of NCQ in dmesg.
Andrew
BTW You may not see 'NCQ' in the kernel messages unless
On Thu, 4 Oct 2007, Andrew Clayton wrote:
On Thu, 4 Oct 2007 10:09:22 -0400 (EDT), Justin Piszcz wrote:
Is NCQ enabled on the drives?
I don't think the drives are capable of that. I don't seen any mention
of NCQ in dmesg.
Andrew
What type (make/model) of the drives?
True, the control
On Thu, 4 Oct 2007 10:09:22 -0400 (EDT), Justin Piszcz wrote:
> Is NCQ enabled on the drives?
I don't think the drives are capable of that. I don't seen any mention
of NCQ in dmesg.
Andrew
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On Thu, 4 Oct 2007, Justin Piszcz wrote:
Is NCQ enabled on the drives?
On Thu, 4 Oct 2007, Andrew Clayton wrote:
On Wed, 3 Oct 2007 13:36:39 -0700, David Rees wrote:
Not bad, but not that good, either. Try running xfs_fsr into a nightly
cronjob. By default, it will defrag mounted xfs file
Is NCQ enabled on the drives?
On Thu, 4 Oct 2007, Andrew Clayton wrote:
On Wed, 3 Oct 2007 13:36:39 -0700, David Rees wrote:
Not bad, but not that good, either. Try running xfs_fsr into a nightly
cronjob. By default, it will defrag mounted xfs filesystems for up to
2 hours. Typically this is
On Wed, 3 Oct 2007 13:36:39 -0700, David Rees wrote:
> Not bad, but not that good, either. Try running xfs_fsr into a nightly
> cronjob. By default, it will defrag mounted xfs filesystems for up to
> 2 hours. Typically this is enough to keep fragmentation well below 1%.
I ran it last night on the
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