On 7/17/06, Jonathan Wheeler <[EMAIL PROTECTED]> wrote:
Hi All,I've just built an 8 disk zfs storage box, and I'm in the testing phase before I put it into production. I've run into some unusual results, and I was hoping the community could offer some suggestions. I've bascially made the switch to
Also note that the current prefetching (even in snv_41) still suffers
from some major systematic performance problems. This should be fixed
by snv_45/s10u3, and is covered by the following bug:
6447377 ZFS prefetch is inconsistant
I'll duplicate Mark's evaluation here, since it doesn't show up o
Title: Re: [zfs-discuss] ZFS bechmarks w/8 disk raid - Quirky results, any thoughts?
The prefetch and I/O scheduling of nv41 were responsible for some quirky performance. First time read performance might be good, then subsequent reads might be very poor.
With a very recent update to the zfs
> On 7/17/06, Jonathan Wheeler <[EMAIL PROTECTED]>
> wrote:
> > Reads: 4 disks gives me 190MB/sec. WOAH! I'm very
> happy with that. 8 disks should scale to 380 then,
> Well 320 isn't all that far off - no biggie.
> > Looking at the 6 disk raidz is interesting though,
> 290MB/sec. The disks are
> On Mon, 17 Jul 2006, Roch wrote:
>
> >
> > Sorry to plug my own blog but have you had a look
> at these ?
> >
> >
>http://blogs.sun.com/roller/page/roch?entry=when_to_a
> nd_not_to (raidz)
> >
>http://blogs.sun.com/roller/page/roch?entry=the_dynam
> ics_of_zfs
> >
> > Also, my thinking i
On 7/17/06, Jonathan Wheeler <[EMAIL PROTECTED]> wrote:
Hi All,
I've just built an 8 disk zfs storage box, and I'm in the testing phase before
I put it into production. I've run into some unusual results, and I was hoping
the community could offer some suggestions. I've bascially made the swit
On Mon, 17 Jul 2006, Roch wrote:
>
> Sorry to plug my own blog but have you had a look at these ?
>
> http://blogs.sun.com/roller/page/roch?entry=when_to_and_not_to (raidz)
> http://blogs.sun.com/roller/page/roch?entry=the_dynamics_of_zfs
>
> Also, my thinking is that raid-z is probabl
Dana H. Myers wrote:
Jonathan Wheeler wrote:
---Sequential Output ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
mirror MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
8 disk 8196
Sorry to plug my own blog but have you had a look at these ?
http://blogs.sun.com/roller/page/roch?entry=when_to_and_not_to (raidz)
http://blogs.sun.com/roller/page/roch?entry=the_dynamics_of_zfs
Also, my thinking is that raid-z is probably more friendly
when the config contains
Jonathan Wheeler wrote:
I'm not a ZFS expert - I'm just an enthusiastic user inside Sun.
Here are some brief observations:
> Bonnie
> ---Sequential Output ---Sequential Input--
> --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
> --See
Hi All,
I've just built an 8 disk zfs storage box, and I'm in the testing phase before
I put it into production. I've run into some unusual results, and I was hoping
the community could offer some suggestions. I've bascially made the switch to
Solaris on the promises of ZFS alone (yes I'm that
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