Deepak:
Just for emphasis, you should not have any framentation on volume that is less than 90% full.
The filer reserves, 10% of the volumes disk space to handle framentation. Even with this said, remember the filer buffers write requests and chooses the disk blocks to write to, in memory so that it can make the best decision before handing the request to the raid manager.
If you allowed your volume to become over 90% full and continued running (meaning writing) to the disk, then you might have a problem.
Don't look for fragmenation unless you meet that condition and remember, it is best to add disk in multiple (3 or more at a time).
Hope this helps.
************Original Message************ Hi
We have FAS960 filer running ONTAP Release 6.3.1. I have heard that over the period of time the performance of filer decreases as it is getting more fragmented.
How do I check fragmentation ? How can I defrag ...any scheduled job or internal utility ? How can I minimize fragmentation and monitor it ?
Thanks /Deepak
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