We use jfs and multiple 3ware controllers, more ram and definitely see a
much higher speed than that.

All the tests I have seen have shown ext3 to be safe but slow. Have you
tried mounting your partition as ext2?

We definitly don't have our sessions set that high.

Have you looked at sar to see your resource usage?

On Fri, 2004-01-16 at 17:38, Ungaro, Matt wrote:
> Hello all,
>         We have a Linux (Redhat 9) system running Networker 7. The hardware
> is an Aberdeen (http://www.aberdeeninc.com) systems Backup Monster with 8
> 120GB hard disks in a RAID 5. I am first backing up all data to a 980GB
> adv_file device that is a partition on the RAID formatted with ext3 (mount
> options are rw,suid,dev,exec,auto,nouser,async,noatime,data=writeback). The
> Backup Monster has 2 GigE interfaces, one I have in my internal network and
> the other in my DMZ. When backing up clients on the internal network, I am
> maxing out writing to the disk device at 11MB/s. For the DMZ, sometimes I
> reach 8MB/s. After I finish backing up to disk, I clone all savesets to an
> HVD Sun Storedge L9 library with an HP-Ultrium LTO drive. For that process I
> am getting 15 MB/s, sometimes higher. Why is my disk backup so slow? The
> system itself is a P4 with 512 MB RAM. I would think that I would get a much
> higher write speed to disk than I am getting. I am also allowing 64
> simultaneous target sessions to the adv_file device. Any tips on increasing
> speed would be greatly appreciated. Thanks in advance!
>
> Matt Ungaro (mjungaro AT capitolindemnity DOT com)
> Network Specialist
> Capitol Indemnity Corporation
> 4610 University Ave. Ste. 1400
> Madison, WI  53705
> Phone: (608)232-5654
> Fax: (608)232-5671
>
> --
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--
Charles Weber <weberc AT comcast DOT net>

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Note: To sign off this list, send a "signoff networker" command via email
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