Unfortunately not. I'm now trying to optimize some filesystem options
to check if that increases performance... but from the iscsi part, I
do not know what else to optimize. I could be reaching the physical
limit of the system but I'm not sure since I do not know about any
other performance number
ristie
> > Sent: Thursday, April 09, 2009 10:55 AM
> > To: open-iscsi@googlegroups.com
> > Subject: Re: Open iSCSI Performance on IBM
> >
> >
> > Gonçalo Borges wrote:
> > > Hi All...
> > >
> > > Sorry, the following could be a little bi
m
> Subject: Re: Open iSCSI Performance on IBM
>
>
> Gonçalo Borges wrote:
> > Hi All...
> >
> > Sorry, the following could be a little bit off topic...
> >
> > Does any one has an idea of what is the expected performance for a IBM
> > DS 3300 system c
Have you made any headway with this issue? I'm having a write issue
that seems to share some similarities with yours.
On Apr 13, 8:14 am, Gonçalo Borges wrote:
> Hi...
>
> > Is /apoio04/b1 a scsi/iscsi disk or is it LVM/DM/RAID on top of a
> > iscsi/scsi disk?
>
> /apoio04/ is a RAID1 of two dis
Hi...
> Is /apoio04/b1 a scsi/iscsi disk or is it LVM/DM/RAID on top of a
> iscsi/scsi disk?
/apoio04/ is a RAID1 of two disks accessible via iscsi (in the
following tests, I changed the mount point from /apoio04/ to /iscsi04-
lun0/ but they are exactly the same).
>
> Could you set the IO sc
Gonçalo Borges wrote:
> Hi All...
>
> Sorry, the following could be a little bit off topic...
>
> Does any one has an idea of what is the expected performance for a IBM
> DS 3300 system connected via open iSCSI? Using a RAID 1 with 2 disks,
> I got the following numbers:
>
Is /apoio04/b1 a scs
Basically, I want to have an idea of the performance other admins are
getting... The hardware is not so important since I'm interested in
the order of magnitude of the performance rates...
On Apr 9, 10:22 am, Gonçalo Borges wrote:
> > What is the write performance if you do RAID0 instead of RAID
> What is the write performance if you do RAID0 instead of RAID1?
Basically 30MB/s, i.e., twice the value I get in a RAID1.
> Also, you can use 'direct' I/O flag with "dd" command.
I'll try using this one!
Thanks and cheers
Goncalo
--~--~-~--~~~---~--~~
You re
What is the write performance if you do RAID0 instead of RAID1? I don't
have that hardware and I can't verify anything though. Also, you can use
'direct' I/O flag with "dd" command.
Thanks, Malahal.
Gon?alo Borges [borges.gonc...@gmail.com] wrote:
>
> Hi All...
>
> Sorry, the following could b
Hi All...
Sorry, the following could be a little bit off topic...
Does any one has an idea of what is the expected performance for a IBM
DS 3300 system connected via open iSCSI? Using a RAID 1 with 2 disks,
I got the following numbers:
Sequential Write:
[r...@core12 ~]# dd if=/dev/zero of=/ap
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