It is not just the copying that is slow.

I purchased this unit based on recommendations from Dell, with the hardware-based RAID configuration.
It was to be used for off-site backups of user data across a GigE network.

However it cannot be used as such as the performance is dismal at best.
Using Backup Exec 9.1's Backup-to-disc function, the speeds are 1/3rd that of my PV128T tape drive unit.
So much for Disk to Disk backups being faster than Disk to Tape...

At first I thought it was a memory bottleneck, so I added a gig of RAM to it.
Proc usage is less than 10% while the backup jobs are running.
No one within Dell has been able to help me either.

I backup to an older SCSI-based NAS, backups are two-three times faster than my newer 725n...
Pretty pathetic.

Message Edited by mkirda on 04-16-2004 05:00 PM

I have a problem with file access and navigation under XP clients but not backup.  I recently moved our NAS server from a 100Mbits connection to a Gigabit and speeds have improved.  Under the 100Mbit network it took me 8.5 hours to backup 66GB's of data disc to disc, now I can backup 88GB's in 3.5 hours!  I am currently getting data transfer rates of between 15MBs and 25MBs using the Gigabit connection, no speed problems there.  My backup server is plugged directly into our central Gigabit switch and the 725N is one hop away on another Gigabit switch.  The speeds mentioned were also achieved with another 32 backup clients running at the same time!  I'm currently using Legato's networker 7.0.

Are there any Backup Exec client or server parameters you can tweak and does the backup traffic have free use of the LAN during backups?  Also where is the PV128T located, on the NAS server or backup server.  Also disc to disc backups are Dependant on the speed of pieces of string between the backup client and backup server.  I have found that disc to disc backups are more consistent and avoid the errors associated with tape backups.  The speed improvements come from the fact that discs are not prone to lengthy tape repositioning requests and tape shuffling due to slow data transfer rates.  If you have to do LAN backups it is wise to ensure that you have a dedicated management LAN to do over, remove all other traffic.

Kind regards

Simon

I get the same issue with My 715N...but I am just copying files from an XP box to the 715N and it get super slow...even stalls...did you guys figure it out??