Hello everyone,
I'm having an issue with our current setup: Two hosts and a v3700 SAN. Each host has 2x 2-Port Fibre Channel adapters directly connected to the SAN. MPIO is configured with IBM drivers and according to IBM the pathing is good.
The problem I'm encountering is when we launch a checkpoint on either of the hosts the entire network slows to a crawl. I know checkpoints aren't recommended in production but we use Veeam and Veeam uses checkpoints to do it's backups. I have other places with the exact same setup that do not have this issue. The only major difference is the size of the volume (20 Terabytes) for the place with the problem compared to 5 - 6 TB at other places.
I'm taking a shot in the dark and looking for any ideas.
Thanks,