need some advise on disk\aggregate design in order to optimize performance. My system is a 204a and currently has the following drives
SATA will be used for low performance servers and archive data
SAS will be used for vmware, sql and other high IO
12 1TB SATA shelves (internal)
24 450GB sas drives (4243 shelf)
My thoughts were
2 spares: 2 parity: total of 8 disk usable.
sata ownership to san A: aggr0: SATA: raid size 14:
2 spares: 2 parity: total of 20 usable:
sas ownership to san B: aggr 0: raid size 20
- is there any benefit to splitting the disks between the filers vs. having one san own all the disks considreing the number of currnet disks.
- is there any disadvantage to having a raid size of 20? should it be lower 10, 12, 16 and having drives splut between two raid groups. logic is more spindles = more performance.