Hi all,
We have two MSA 2040 SAN with the information mentioned below:
Vendor : HP MSA 2040 SAN
Mode : SPS-CHASSIS
Number of Disks : 6 (4 disks in RAID 10 and 2 disks are spared)
Midplane Serial Number :
Part Number : 639410-001
MIdplane Type : 2U24-6Gv2
Enclosure Power : 125.28
This dual controller SAN is connected to 2 Oracle DBs server via FC ports to controller A and B which are in Active-Active ULP Mode for each server. We are supposed to load up second SAN which is entirely same as the first one to implement SAN redundancy.
Based on our investigation the best design is using two SAN switches to connect two ports from each controller module to the first switch to facilitate I/O traffic, and connect two ports from each controller module to the second switch to facilitate replication to get full redundancy and avoid the potential single point of failure inherent to using a single switch. But I want to know what if we eliminate the switch and just connect two SANs together? Please consider that our second SAN storage does not have any configuration, we want to make sure adding it to cluster will not affect our production environment.