------=_Part_6182_19095366.1143190845592
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

I have two Linux media servers setup with 3ware 9500S controllers using rai=
d
"50" with  seagate disks.  With our configuration this is two raid 5's of 6
disks each that are then striped together.  I get up to about 70MB/sec
writes and 300MB/sec reads after the readahead is tweaked up.

They are used for DSSU's going to IBM LTO3's and I'm seeing up to 160MB/sec
writes to tape.  I'm very happy so far.

I get better read performance with raid5 or raid50 than with raid 10.  But =
I
use raid 10 for the catalog raid for best write performance.  I see a bit
over 100MB/sec reads & writes with raid 10.

On 3/22/06, Ambrose, Monte <mambrose AT qualcomm DOT com> wrote:
>
>  I wanted to get a feel for what type of disk storage is being used out
> there for disk based backups.  I am specifically looking for SAN attached
> storage ATA, SATA and what type of RAID is used and how it is performing
> overall.   The NBU 6.0 tuning guide shows RAID-5 but I am wondering if
> anyone is using RAID-10 or others.
>
>
>
> Thanks, Monte
>
>
>



--
-Tim

------=_Part_6182_19095366.1143190845592
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

I have two Linux media servers setup with 3ware 9500S controllers using rai=
d &quot;50&quot; with&nbsp; seagate disks.&nbsp; With our configuration thi=
s is two raid 5's of 6 disks each that are then striped together.&nbsp; I g=
et up to about 70MB/sec writes and 300MB/sec reads after the readahead is t=
weaked up.&nbsp;=20
<br><br>They are used for DSSU's going to IBM LTO3's and I'm seeing up to 1=
60MB/sec writes to tape.&nbsp; I'm very happy so far.<br><br>I get better r=
ead performance with raid5 or raid50 than with raid
10.&nbsp; But I use raid 10 for the catalog raid for best write performance=
.&nbsp; I see a bit over 100MB/sec reads &amp; writes with raid 10.<br>
<br><div><span class=3D"gmail_quote">On 3/22/06, <b class=3D"gmail_senderna=
me">Ambrose, Monte</b> &lt;<a href=3D"mailto:mambrose AT qualcomm DOT 
com">mambros=
e AT qualcomm DOT com</a>&gt; wrote:</span><blockquote class=3D"gmail_quote" 
style=
=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; p=
adding-left: 1ex;">
<div style=3D"direction: ltr;">










<div>

<p style=3D""><font face=3D"Courier New" size=3D"2"><span style=3D"font-siz=
e: 10pt;">I wanted to get a feel for
what type of disk storage is being used out there for disk based backups.&n=
bsp;
I am specifically looking for SAN attached storage ATA, SATA and what type =
of
RAID is used and how it is performing overall.&nbsp;&nbsp; The NBU 6.0 tuni=
ng
guide shows RAID-5 but I am wondering if anyone is using RAID-10 or others.=
</span></font></p>

<p style=3D""><font face=3D"Courier New" size=3D"2"><span style=3D"font-siz=
e: 10pt;">&nbsp;</span></font></p>

<p style=3D""><font face=3D"Courier New" size=3D"2"><span style=3D"font-siz=
e: 10pt;">Thanks, Monte</span></font></p>

<p><font face=3D"Arial" size=3D"2"><span style=3D"font-size: 10pt; font-fam=
ily: Arial;">&nbsp;</span></font></p>

</div>





</div></blockquote></div><br><br clear=3D"all"><br>-- <br>-Tim

------=_Part_6182_19095366.1143190845592--