Ok, I think I misunderstood the protocol used. Connecting 2 servers (hosts) to 1 disk enclosure won't work as there is no communication between servers writing to one virtual volume (LUN 0). I thought the ME4 array would handle both initiators and act like NAS storage. With SAS direct connection it won't.I think I will split the ME4 volume in two and just give every host access to its exclusive part.Thank you for your reply.
I have DellEMC ME4 connected to two servers via SAS. The array is configured using the web interface so that both hosts are in the same group and can see this LUN as a single virtual drive. When I create a new file on this /dev/sdc1 from host #1, it doesn't show up on host #2 until I umount and mount the drive again (and vice versa). Anyone noticed something similar and can provide some help? I'm running debian buster on both hosts and they have 1:1 idendical system (it was cloned).
DellEMC Model: ME4 - Linux not detecting new files on second host upon creation