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05-21-2013 03:56 AM
05-21-2013 03:56 AM
iSCSI design best practice with multiple HP Storage Arrays
I'm in the process of designing a config which will have VMware storage on one iSCSI array (P2000 G3) and B2D storage on another (MSA2000i).
As both are Dual-controller iSCSI devices, best practice suggests a two subnets per array (A0/B0 in one subnet, A1/B1 in the other) and non-routed.
Given a requirement for one server to access both arrays, this would potentially suggest at least 4 x NIC ports for iSCSI only in this server (with a further 2 ports minimum per additional iSCSI array).
Clearly this isn't scaleable so I'm trying to determine where the compromise should be made - either using just two subnets for both arrays (i.e. A0/B0 for BOTH arrays in one subnet & A1/B1 for BOTH arrays in the other, then a single NIC in each subnet at the host end).
Or, whether the SP's should remain in different subnets, but instead have them routed (again, resulting in a single host NIC port in each subnet).
I've been googling extensively & not found any guidance for this scenario so would appreciate any advice (or pointers to existing info).
My prior experience is with smaller-scale FC storage so this is the first time I'm delving deeper into iSCSI...
Regards,
Paul
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05-21-2013 03:58 AM
05-21-2013 03:58 AM