On Fri, Jul 29, 2005 at 01:11:35PM -0700, Mark Wong wrote:
> On Fri, 29 Jul 2005 14:57:42 -0500
> "Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
>
> > On Fri, Jul 29, 2005 at 12:51:57PM -0700, Mark Wong wrote:
> > > > Not sure I fully understand what you're trying to say, but it seems like
> > > > it m
On Fri, 29 Jul 2005 13:19:06 -0700
"Luke Lonergan" <[EMAIL PROTECTED]> wrote:
> Mark,
>
> On 7/29/05 12:51 PM, "Mark Wong" <[EMAIL PROTECTED]> wrote:
>
> > Adaptec 2200s
>
> Have you tried non-RAID SCSI controllers in this configuration? When we
> used the Adaptec 2120s previously, we got very
On Fri, 29 Jul 2005 13:35:32 -0700
Josh Berkus wrote:
> Mark,
>
> > I have done that before actually, when the tablespace patch came out. I
> > was able to get almost 40% more throughput with half the drives than
> > striping all the disks together.
>
> That's not the figures you showed me.
Mark,
> I have done that before actually, when the tablespace patch came out. I
> was able to get almost 40% more throughput with half the drives than
> striping all the disks together.
That's not the figures you showed me. In your report last year it was 14%,
not 40%.
--
Josh Berkus
Aglio
On Fri, 29 Jul 2005 14:57:42 -0500
"Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> On Fri, Jul 29, 2005 at 12:51:57PM -0700, Mark Wong wrote:
> > > Not sure I fully understand what you're trying to say, but it seems like
> > > it might still be worth trying my original idea of just turning all 80
> >
On Fri, Jul 29, 2005 at 12:51:57PM -0700, Mark Wong wrote:
> > Not sure I fully understand what you're trying to say, but it seems like
> > it might still be worth trying my original idea of just turning all 80
> > disks into one giant RAID0/striped array and see how much more bandwidth
> > you get
On Fri, 29 Jul 2005 14:39:08 -0500
"Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> On Thu, Jul 28, 2005 at 05:00:44PM -0700, Mark Wong wrote:
> > On Thu, 28 Jul 2005 16:55:55 -0700
> > Mark Wong <[EMAIL PROTECTED]> wrote:
> >
> > > On Thu, 28 Jul 2005 18:48:09 -0500
> > > "Jim C. Nasby" <[EMAIL PROTE
On Thu, Jul 28, 2005 at 05:00:44PM -0700, Mark Wong wrote:
> On Thu, 28 Jul 2005 16:55:55 -0700
> Mark Wong <[EMAIL PROTECTED]> wrote:
>
> > On Thu, 28 Jul 2005 18:48:09 -0500
> > "Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> >
> > > On Thu, Jul 28, 2005 at 04:15:31PM -0700, Mark Wong wrote:
> > >
On Thu, 28 Jul 2005 16:55:55 -0700
Mark Wong <[EMAIL PROTECTED]> wrote:
> On Thu, 28 Jul 2005 18:48:09 -0500
> "Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
>
> > On Thu, Jul 28, 2005 at 04:15:31PM -0700, Mark Wong wrote:
> > > On Thu, 28 Jul 2005 17:17:25 -0500
> > > "Jim C. Nasby" <[EMAIL PROTECTED
On Thu, 28 Jul 2005 18:48:09 -0500
"Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> On Thu, Jul 28, 2005 at 04:15:31PM -0700, Mark Wong wrote:
> > On Thu, 28 Jul 2005 17:17:25 -0500
> > "Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> >
> > > On Wed, Jul 27, 2005 at 07:32:34PM -0700, Josh Berkus wrote:
> >
On Thu, Jul 28, 2005 at 04:15:31PM -0700, Mark Wong wrote:
> On Thu, 28 Jul 2005 17:17:25 -0500
> "Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
>
> > On Wed, Jul 27, 2005 at 07:32:34PM -0700, Josh Berkus wrote:
> > > > This 4-way has 8GB of memory and four Adaptec 2200s controllers attached
> > > > to
On Thu, 28 Jul 2005 17:17:25 -0500
"Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> On Wed, Jul 27, 2005 at 07:32:34PM -0700, Josh Berkus wrote:
> > > This 4-way has 8GB of memory and four Adaptec 2200s controllers attached
> > > to 80 spindles (eight 10-disk arrays). For those familiar with the
> > >
On Thu, 28 Jul 2005 17:19:34 -0500
"Jim C. Nasby" <[EMAIL PROTECTED]> wrote:
> On Thu, Jul 28, 2005 at 05:14:41PM -0500, Jim C. Nasby wrote:
> > On Wed, Jul 27, 2005 at 09:31:39PM -0700, Mark Wong wrote:
> > > After seeing the discussion about how bad the disk performance is with a
> > > lot of sc
On Thu, Jul 28, 2005 at 05:14:41PM -0500, Jim C. Nasby wrote:
> On Wed, Jul 27, 2005 at 09:31:39PM -0700, Mark Wong wrote:
> > After seeing the discussion about how bad the disk performance is with a
> > lot of scsi controllers on linux, I'm wondering if we should run some
> > disk tests to see how
On Wed, Jul 27, 2005 at 07:32:34PM -0700, Josh Berkus wrote:
> > This 4-way has 8GB of memory and four Adaptec 2200s controllers attached
> > to 80 spindles (eight 10-disk arrays). For those familiar with the
> > schema, here is a visual of the disk layout:
> > http://www.osdl.org/projects/dbt
On Wed, Jul 27, 2005 at 09:31:39PM -0700, Mark Wong wrote:
> After seeing the discussion about how bad the disk performance is with a
> lot of scsi controllers on linux, I'm wondering if we should run some
> disk tests to see how things look.
I'd be very interested to see how FreeBSD compares to L
On Wed, Jul 27, 2005 at 07:32:34PM -0700, Josh Berkus wrote:
> Mark,
>
> > I'm starting to get results with dbt2 on a 4-way opteron system and
> > wanted to share what I've got so far since people have told me in the
> > past that this architecture is more interesting than the itanium2 that
> > I'
Mark,
> I'm starting to get results with dbt2 on a 4-way opteron system and
> wanted to share what I've got so far since people have told me in the
> past that this architecture is more interesting than the itanium2 that
> I've been using.
>
> This 4-way has 8GB of memory and four Adaptec 2200s co
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