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A question about NX4 and CSA
as usual the nx4 arrived with the control luns carved out as well as d7 and d8 for user disk if you will. my user has 6 more SAS drives in that first DAE and everytime he tries to provision them, they are simply added to the existing pool unless he changes protection. Is there a way to segregate these other drives to another pool? He needs to use them as raid5 but wants to put more i/o intensive apps on them, then he knows he should on the first 5 where d7 and d8 are currently located.
Any ideas??
dynamox
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January 14th, 2010 11:00
Have you looked into using user defined pools ?
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rpereira1
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January 14th, 2010 11:00
I didnt sewe that option can you direct me?
dynamox
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January 14th, 2010 12:00
Look for documents called
Managing Celerra Volumes and File Systems Manually 5.6.44 A04
Managing Celerra Volumes and File Systems with Automatic Volume Management 5.6.47 A07
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dynamox
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January 14th, 2010 12:00
ral67_xyz
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January 14th, 2010 12:00
In my opinion - on system with few drives it doesnt make sense to further carve up disks into different pools unless you need RAID1
there's much more performance hurt by not giving a file system enough devices to work with than by combining some app's workloads onto the same disks
the Celerra I/O system really like two (or better four) devices striped from different raidgroups
for example because the number of outstanding I/O's is limited per device
take a look at some of the previous threads here on what happens it you only use one raidgroup