Could you guys please let me know that SAN administration key point and how its useful in RAC environment and express brief on RAID also?
Kindly share your valuable views here, so i can proceed further.
Thanks in advance.
SAN simply said separating computing from storage, now with RAC as your nodes may be busy with computing/processing, you can have SAN and telling the ASM to use the disks over SAN.
RAID is for redundancy purpose But ASM has the redundancy levels of High(3-copies), Normal(2-copies), External(1-copy) depending on different factors, companies consider using either ASM redundancy or RAID or both.
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