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Bad performance HP DTL VS80

Fredrik Nyberg_1
Occasional Visitor

Bad performance HP DTL VS80

On my costumers Windows NT 4 i´ve installed a HP DLT VS80 and it takes forever to make a backup operation. I´m using BE 8.3 with all patches.
Have tried the diagnostic from hp with no errors.
The backup speed is 12 Mb/min (it should go faster i think?)

/Fre
3 REPLIES
Victor Pendlebury
Valued Contributor

Re: Bad performance HP DTL VS80

Hi

Be sure that the block size is set to 64k under the drive properties - Backup Exec

VS drives require 64k block size for optimal performance

Standard DLT drives use 32k block size

BE8.3 is quite old so I presume it is detecting your drive as a standard DLT

Let me know if this helps

Regards
Vic
Fredrik Nyberg_1
Occasional Visitor

Re: Bad performance HP DTL VS80

Thanks!!
Block size was set to 64, but when i put buffer size to a higher level i now backup the whole server in 3 hours (before it took 11 hours)
Stephen Patterson_1
Occasional Visitor

Re: Bad performance HP DTL VS80

Where do you change the Block size is it in the Backup software or on the Drive?