Eliza,

On your Exchange Agent backups...
...did you try using the "BUFFERS" option? Like:

     /BUFFERS:8,640

on the command-line backup invocation...or some variation thereof?

Also, try:

     TCPWindowsize     63
     TCPBuffSize       32

Again, I know for sure that we have customers getting about 30G/hr
so I do know that the Exchange Agent is capable of achieving
much higher rates than what you are seeing.

Thanks,

Del

----------------------------------------------------
Del Hoobler
Del Hoobler
IBM ADSM Agent Development
hoobler AT us.ibm DOT com




> I have tried a simple ftp from the NT (Exchange server) to UNIX and got
> 27G/hr out of it.  So it isn't the network.  Of course, the ftp is from disk
to
> disk.  I can only get at most 3G/hr out of the ADSM connect agent (disk to
> tape).  We are running Seagate Backup Exec in production to backup the db.
> The Seagate backup takes about half the time even though the data have to
march
> through the network twice (NT server to Seagate Backup Exec server to ADSM
> server).
> We would like to switch to ADSM for simplicity, but with throughput
> much worse than Seagate there is no way we could justify the switch.
> We only have a 6 hour window to backup the db.  As the db is expected to
> grow exponentially next year we won't be able to back it up in 6 hours.
>
> Eliza
>