On Fri, 6 May 2005, Maarten Boot (CWEU-USERS/CWNL) wrote:

>Just to recap,
>
>Network = 1G that means max 80GB/s towards the server.
>San to S-AIT(234?) what is the max speed there both comressed and uncompressed
>(can be tested with a local large file)
>What kind of clients also 1G net, what kind of data (large files, many small)

Throughput is fine. We were able to ftp a large part of a 45GB file from
our NetWorker server to another server and it got something like 55MB/s if
I remember correctly, and that was across a firewall. As I recall, the
server has a Qlogic 2GB HBA in it for use with the tape drives.

>All those factors influence the client speed and therefore the backup speed.
>
>In my environment  Sol9 E450 2x400Mhz CPU 1 GB mem, I see the highest
>throughput on cloning as that does not use any network at all. LTO-2 on
>LSi320 scsi gives me 40M/sec on average while normal backups vary strongly
>according to the data on the client but (as my network is basically 100M full
>duplex) never more than 10M/sec.

That's the trouble, I see lots of devices with heavy multiplexing going on
that go long periods of time in the 6MB/s range, which strikes me as way
too slow for our network and hardware, so I am wondering if there any
kernal options that can be adjusted to improve this situation on Solaris
9.

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listserv.temple DOT edu or visit the list's Web site at
http://listserv.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=