I need a solution
Hi All,
We are finding our jobs are using more tapes than neccessary and I was wondering if anyone knew of how I can resolve this. Here's the setup:
- We are using BEXEC 2014
- All our backups are NDMP from NetApp
- We have incrementals configured correctly (level 0, 1, 2, 3 etc.)
- We have all our backups set to Append to media, overwrite if no appendable media is available
- We have 7 HP tape drives
- We use LT05 tape media
- W have no excryption enabled
- We have the compression for every job set to Hardware (if available, otherwise none)
- We have 18 jobs running each night
- The total of our jobs (Mon-Fri) are approximately 5 - 6TB per day
I hope all the above helps.
Each day our incremental jobs are taking up 13 - 15 LTO5 tapes that are all capable of supporting 3TB of writable space. If we were to be conservative and say that each tape cartridge could only support 1.5TB of writable space, then realistically, we should only be using 4 tapes per night....However, given our environment, the following occurs:
As we have 7 drives, 7 jobs start immediately, therefore I am only expecting to remove 7 tapes each day.
Am I wrong in thinking this?