There is also a long-standing bug in the ALi chipset used on these servers
which ZFS tickles. I don't think a work-around for this bug was ever
implemented, and it's still present in Solaris 10.
On Nov 13, 2009, at 11:29 AM, Richard Elling wrote:
The Netra X1 has one ATA bus for both
Hi,
I have a Netra X1 server with 512MB ram and two ATA disk, model ST340016A.
Processor is a UltraSPARC-IIe 500MHz.
Version of solaris is: Solaris 10 10/09 s10s_u8wos_08a SPARC
I jumpstarted the server with ZFS as root, two disks as a mirror:
On Fri, 13 Nov 2009, inouk wrote:
So my question are the following:
1.- Why zpool iostat is reporting 15MB/s of data read when in reality only
615KB/s is read ?
2.- Why sched is taking so much io?
3.- What I can do to improve IO performance? It find it very unbelievable that
this is the
To: inouk
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] zfs/io performance on Netra X1
On Fri, 13 Nov 2009, inouk wrote:
So my question are the following:
1.- Why zpool iostat is reporting 15MB/s of data read when in reality only
615KB/s is read ?
2.- Why sched is taking so much io
On Fri, 13 Nov 2009, inouk wrote:
Your system has every little RAM (512MB). It is less
than is
recommended for Solaris 10 or for zfs and if it was a
PC, it would be
barely enough to run Windows XP. Since zfs likes to
use RAM and
expects and sufficient RAM will be available, it
seems
On Fri, 13 Nov 2009, inouk wrote:
Sounds like a bus bottleneck, as if two HD's can't use the same bus
for data transfert. I don't know the hardware specifications of
Netra X1, though
Maybe it uses Ultra-160 SCSI like my Sun Blade 2500? This does
constrain performance, but due to
On Fri, Nov 13, 2009 at 9:53 AM, Bob Friesenhahn
bfrie...@simple.dallas.tx.us wrote:
On Fri, 13 Nov 2009, inouk wrote:
Sounds like a bus bottleneck, as if two HD's can't use the same bus for
data transfert. I don't know the hardware specifications of Netra X1,
though
Maybe it uses
On Fri, 13 Nov 2009, Tim Cook wrote:
If it is using parallel SCSI, perhaps there is a problem with the SCSI bus
termination or a bad cable?
SCSI? Try PATA ;)
Is that good? I don't recall ever selecting that option when
purchasing a computer. It seemed safer to stick with SCSI than to
Bob Friesenhahn wrote:
On Fri, 13 Nov 2009, Tim Cook wrote:
If it is using parallel SCSI, perhaps there is a problem with the
SCSI bus termination or a bad cable?
SCSI? Try PATA ;)
Is that good? I don't recall ever selecting that option when
purchasing a computer. It seemed safer to
The Netra X1 has one ATA bus for both internal drives.
No way to get high perf out of a snail.
-- richard
On Nov 13, 2009, at 8:08 AM, Bob Friesenhahn bfrie...@simple.dallas.tx.us
wrote:
On Fri, 13 Nov 2009, Tim Cook wrote:
If it is using parallel SCSI, perhaps there is a problem with
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