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Posted: Tue Feb 09, 2016 2:40 am
by priyadarshikunal
Installation on SAN is good but on NAS may not be a good idea. Top level mounts are ok but separate mounts for resource scratch may be better. And From my experience minimum of 0.5x of swap space is required, 2x recommended.
Its my opinion, which may differ for 11.5 (haven't worked on that) or someone may have some better suggestion.
Posted: Tue Feb 09, 2016 8:17 pm
by rkashyap
Priyadarshi,
Thanks. Separate mountpoints will be created for both scratch disk and data.
Posted: Thu Feb 18, 2016 6:12 pm
by sendmkpk
Are you going with Physical or vmware
Posted: Thu Feb 18, 2016 6:20 pm
by rkashyap
VM (on HP Proliants); Storage will be on VMDK.
Posted: Thu Feb 18, 2016 9:25 pm
by kduke
Not a lot of benefits for separate mount points if on the same SAN if they share the same physical drives. The only benefit is the size of the disk space is reduced. The SAN itself tries to spread the load and most are not optimized for ETL. There is usually lots of buffering in the SAN which helps a lot.
Posted: Sat Feb 20, 2016 10:32 pm
by rkashyap
Few years ago, file system hosting the DataStage project ran out of space, subsequently many of the jobs were corrupted. Now it is part of our standard practice to isolate data/scratch directory on separate mountpoints.
Posted: Thu Mar 03, 2016 5:36 pm
by rkashyap
Heard back from IBM, guidance on NFS parms in tech note 1447759 (above) is still applicable for IIS 11.5.
Posted: Tue May 10, 2016 8:01 pm
by sendmkpk
Do we know where to change this options we are doing 11.5 install on NFS faced some issues IBM is recommending to do the same but our NAS Team has no clue what it means.