SLOW, Slow, Slow NTBackups

[bubarooni]

I just set up a DLT7000. I am using it with the native NTBackup using the /um switch. I am backing up about 11 Gb's of data.

It is taking about 16 hours to back up the 11 Gb's. The four server's that have files being backed up, including the one where the DLT is hooked up, are all on a 10/100 workgroup switch that then connects to the network.

This seems like an awful long time to me.

Is there anything I should check or is this about normal for 11 Gb's.

Thanks

 

[bubarooni]

Just trying to keep it near the top where someone who has run into this before might see it...

 

[Lightspeed1]

Hey Bub,
The DLT is a SCSI device? I have run into this before with bad SCSI controller and also SCSI cabling issues. Post back and let me know.

Regards,
Lightspeed1

 

[Markus0815]

Hi bubarooni,
Take a look at the tape drive when taking the backup, if the tape device is "shoe-shining", the tape device is running out of data and you have a bottleneck somewhere in between your data and the tape. "Shoe-shining" means the tape device stops the tape 'cause no data i available, rewinds the tape to the last data position on the tape, and continues writing, stops again, rewinds and so on....

Do you have the server disks and the tape device on two different controller channels ot two different SCSI controllers? If not, this would be a good point to start.

 

[bubarooni]

Yes the DLT is a scsi device. I added a scsi card for this tape device. Could it be I just have a scsi card that doesn't work well with the DLT?