LTT DAT24 Win2K Server Problem

[Dominik Lanzenberger]

NT Backup - dowsn´t work
BrightStor ArcServe (Standard) doesn´t work.

tested BackupExec --> works but bad performance, about 1Mb a minute...

[Jaclyn Rothe]

If you are going to use arcserve there is a different process regarding drivers that we need to do to confiure the tape drive. If you are going to use veritas there is also a different process you need to do regarding drivers.
You should only have one back up software installed on your server at one time, or the services running in the background will cause tape drive issues from the alternate back up software.
For arcserve:
go into device manager and right click on your drive, you will see a disable option for the drive, you must do this or drivers will automatically be installed by windows and this will cause back up conflicts.

For Veritas:
go to http://support.veritas.com/menu_ddProduct_BEWNT_view_DOWNLOAD.htm
select download type: driver
select version: which ever version of back up exec you have
Click on the driver it jumps you to and install that on your tape drive. Reboot your server and ensure trhough device manager that this has taken hold and is displayed as "veritas".

Always make sure that when you start LTT that RSM is still disabled and that your back up software services have been stopped.
If you are trying to use NTback and RSM is disabled, NTbackup will not work as RSm is the service for this application.

[Jaclyn Rothe]

Also, does your scsi card have a bios flashed on it?
With DAT drives you should disable wide negotiation and a slow the sync transfer rate of the controller card and the drive to 10.8mb/s.

This might help with your transfer rate in veritas.
Also ensure your block and buffer size in Veritas is set to 32K, and hardware compression is set to "hardware if available" (because the drive will self compress the data).