However, that is using a single port going to a single switch. How would be the best way to add redundancy with my second port and second switch?
MPIO / iSCSI redundancy for the backup box? Probably not much point?
Is it just as simple as adding another iSCSI IP to my second nic, assigned access to the VMFS volume, and setting up the Windows initiator with Round Robin with both IPs??
You would install Dell HIT for Windows to get MPIO support.
Sorry to hijack this thread... but I have a similar query in regards to performance (or potential lack of). A client of mine has a Dell EqualLogic SAN (tier 1 storage) and a Dell MD3600i SAN (tier 2 storage) connected up across 6 x ESXi hosts. Its been a battle to get both these working together due to the way the SAN's function (both have 4 x physical ports - 2 controllers / 2 ports per controller, however EQL has a "group IP" - or virtual IP if you like that dynamically spreads the load across physical IP's on each port, whereas the MD3600i has no "virtual IP" but instead, for optimal performance, requires half the IP's in different subnets... I digress) So getting these working together under VMWare when sharing the same 10GbE NIC's and retain performance was a nightmare (had to VLAN off and trunk iSCSI up to the vmk's...) but anyways, even more tricky to get going on the Veeam server side AND continue utilising Direct SAN backups. In this case, I've have 2 x 10GbE (unfortunately Broadcom) NIC's, 1 x NIC is dedicated to EQL and the other to MD3600i, each with their own IP (and tried adding a secondary IP to the MD3600i to get the 2nd subnet going). I can get Direct SAN backups from EQL, but not from MD3600i, I believe due to the ownership of a path / LUN,... but anyway, back to my point - nmace
- a question for you, if you run Task Manager whilst Veeam is running a direct from SAN backup job, what utilisation of the NIC's are you seeing? In fact, anyone running Direct SAN backups over iSCSI, are you 1Gbps or 10GbE and secondly what average and maximum NIC utilisation are you seeing in Task Manager/Resource Manager? Mine seems quite low, so I'm sure there must be some tweaks that can be done on the NIC to improve performance (I already disabled Windows TCP autotuning as per this post viewtopic.php?f=2&t=4093