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Chris_blair's avatar
Chris_blair
Level 2
17 years ago

Preformance

I am running BE 11d with all updates according to LiveUpate, with a Ultrium-TD2 LTO Tape drive on Firmware 53y2.
 
The backup rate seems to be pretty slow, ~250mb per minute. It is backing up a local Raid5 volume, nothing else. I do have the AOFO installed.
 
How can i begin to tweak performance? What rate should i be around?
11.x and Earlier
Backup and Recovery
Backup Exec
Basics

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  • Rafael_DAuria's avatar
    Rafael_DAuria
    Level 4
    17 years ago
    I suggest you to take a loot at the best blocking size and buffer for your tape drive(Device->Properties in the Tape Driver->Configuration tab).

    There's a lot of technotes from IBM about LTO2 performance sizing... Take a loot at then.
     
    Eg. I have an LTO3 with 512K buffer size, at 2gb/min. At the default config(64k), I have 300mb/min...
     
    Also ensure that the tape and disks are not in the same SCSI controler! ;)
  • Chris_blair's avatar
    Chris_blair
    Level 2
    17 years ago
    Thanks for the reply. I will try and find those articles.
     
    Do you happen to have any links to them?