2016-02-02 07:06 AM
We have a pair of Netapp FAS2220-2 filers with the DS shelves. We have never had any reallocation scheduling setup and our partner has not configured this from day 1, we are now over a year since install and suffering performance issues. I have read up about reallocation, read-reallocation, space optimization, extent etc but i`m not 100% sure what the best practises are. I`m also not sure about wether to reallocate on a deduplicated volume or not. Some of our volumes are deduplicated and some are not (those with exchange db and SQL db).... What`s the best way to handle this? I have ran some measures on the volumes, some are showing as high as 8 with hotspots.
2016-02-02 07:22 AM
What i`d like to understand is what schedule should i perform on all of my volumes and should i be reallocating on deduplicated volumes as well? Additionally any advise on reallocate read / space optimization / extent would also be appreciated.
2016-02-02 07:44 AM
You did not answer my first question. Have you added any disks? And did you run re-allocate measure?
Also, it seems they pulled 3929, but see if you can find it online and take a read thru of it
2016-02-02 08:12 AM
3.4 Free Space Reallocate and Read Reallocate
When enabling free space reallocation on an aggregate, also consider enabling read reallocate
space_optimized for the volumes in the aggregate. The two are complementary technologies that help
maintain optimal layout. Read reallocate will optimize the system for sequential reads on the fly, while
free space reallocate will optimize for writes.
2016-02-02 08:24 PM