Hanzo581
11 years agoLevel 4
Number_Data_Buffers Question
So recently we made the move to SLPs. We write to a virtual tape via a VTL and at the same time in the SLP we have duplications for two physical tapes.
Everything is going fine, all the SLPs and d...
- 11 years ago
No No No
Small buffer will only add to the tape drive effect called "shoe shining".
Is better to send one 256K buffer (bucket) to the tape drive than sending 4*64K. Worst case scenario you need to do 4 start/stop operations for 64K block size instead of just one using 256K.
When counting buffers wait you need to look at the average value on all jobs. Some jobs will always misbehave ....