Solution to sync SAN1 to SAN2

[Dana2011]

What is better solution to connect SAN1 to SAN2 for sync; I have two channels for sync SAN1 to SAN2
- connect SAN1 to SAN2 with a straight trough cables from NICs
- connect SAN1 to SAN2 whit crossover cables
Or connect SAN1 with SAN2 trough Switch; I have Dell PowerConnect 6248.

Thanks for any advice!

[anton (staff)]

No hardware = nothing to fail. For sync channels use cross-over cables if possible. They are cheaper, faster and copper is more reliable then baked silicon

[Dana2011]

I also want to know if the chanels for sync have to be in different subnets.
Thank you,
Dana

[anton (staff)]

You really need to have sync channels configured using different set of hardware (switches, NICs and cabling) to provide redundancy. Software configuration (subnets, VLANs etc) does not matter at all.

I also want to know if the chanels for sync have to be in different subnets.
Thank you,
Dana

[Dana2011]

Thanks a lot !
Regards,
Dana

[anton (staff)]

Tiny correction: if your hypervisor of choice is ESX you'd better stick with the DIFFERENT subnets.