IBM SVC and how it affects IO
Posted on 2014-01-29
we are having our storage stack which is mainly IBM shark behind an SVC,we are just confused about few things?
1-our SAN team claims that type of RAID does does not matter if storage is behind SVC like ORACLE is not supposed to use RAID 5 and world rather go with 01,so is this claim correct
RAID won't matter if storage is behind SVC?
2-in another project I have increased the read ahead parameter for AIX which gave us great results with OS file sequential reads and backups,not sure why this never worked in this environments.Is it because of the SVC or because we are using CIO?
3-Will an SVC make extremely fast IO like flash show less response time,meaning is better for Flash not to use SVC?