Have not been using raid cards in at least a decade (thanks to zfs) so I have no clue re these.
I have a SAS3-EL2 backplane, some nice SAS SSDs that can do dual port and Lenovo 930-8i's.
For ZFS i simply used 2 HBAs and got multipathing enabled without issues, but can I do the same with the Raid Controllers?
Can Megaraid span a raid over two controllers/all drives?
Or is that actually a Raid limitation i never was aware off?
(O/c I can simply use the drives with a single controller, but I have 4 of the 930s collecting dust so why not use them)
Edit: I assume (and current reading supports it) that this will not work - so extra question:
How to use SAS multipath capabilities with Raid Controllers?
I have a SAS3-EL2 backplane, some nice SAS SSDs that can do dual port and Lenovo 930-8i's.
For ZFS i simply used 2 HBAs and got multipathing enabled without issues, but can I do the same with the Raid Controllers?
Can Megaraid span a raid over two controllers/all drives?
Or is that actually a Raid limitation i never was aware off?
(O/c I can simply use the drives with a single controller, but I have 4 of the 930s collecting dust so why not use them)
Edit: I assume (and current reading supports it) that this will not work - so extra question:
How to use SAS multipath capabilities with Raid Controllers?