Increasing buffers beyond 32 on a VXA-320

[Michael_McKenne]

Exabyte VXA-320

Block Size per device: 64K

Buffer Size per device: 64K

Buffer Count: 32

High Water Count: 0

Write SCSI Pass Through

benetns.exe: 0% 54,016KB

bengine.exe: 0%, 9,156KB

bengine.exe: 0%, 34,544KB and climbing

beremote.exe: 2%-4%, 32,600 and climbing

beserver.exe: 0%, 102,980KB

BkupExec.exe: 0%, 102,900KB

I have 8GB of RAM and a pair of 280 Opterons.   Why am I still limited to buffer count of 32?  Can I hack the registry and change it to 256? 

[Ken_Putnam]

Why limit the buffer to the block size?  up the buffer size to 256 or 512KB  (or as high as it will go)

[Michael_McKenne]

I upped the buffer size at 2x and 4x block size.  I noticed a difference in performance on my HP DAT 40i and VXA-2.  My VXA-320 is still be a pain.   I was able to get it to hold at 720 MB/min after cancelling and restarting the job.   I turned on Indexing service and set the index to my S: drive.   S: is my paging, temp, and now indexing RAID 10 6 drive SCSI array.   Part of the problem could be I turn it off at night.   It is not caching files completely in the 8GB of RAM.   I set it to system cache instead of program.