iscsi target and VMware/esxi timeouts

[Daniel Braniss]

Hi,
we are experimenting issues with several esxi’s servers that use freebsd 10.2 stable as a iscsi target.
ie:
Nov 11 17:58:16 store-07 kernel: WARNING: 132.65.11.201 (iqn.1998-01.com.vmware:pe-02-2fa7cd9e): no ping reply (NOP-Out) after 5 seconds; dropping connection
Nov 11 17:58:16 store-07 kernel: WARNING: 132.65.11.201 (iqn.1998-01.com.vmware:pe-02-2fa7cd9e): no ping reply (NOP-Out) after 5 seconds; dropping connection
Nov 11 17:58:16 store-07 kernel: WARNING: 132.65.11.205 (iqn.1998-01.com.vmware:pe-03-13e8b52d): no ping reply (NOP-Out) after 5 seconds; dropping connection
Nov 11 17:58:17 store-07 kernel: WARNING: 132.65.11.203 (iqn.1998-01.com.vmware:pe-13-60e87d06): no ping reply (NOP-Out) after 5 seconds; dropping connection
Nov 11 17:58:17 store-07 kernel: WARNING: 132.65.11.205 (iqn.1998-01.com.vmware:pe-03-13e8b52d): no ping reply (NOP-Out) after 5 seconds; dropping connection

these are 3 different esxis that almost at the same time the target looses connection to the initiators.
at the moment most ‘clients’  recover from the scsi error, but older freebsds don’t.

in any case, increasing the timeout is not helping.

any clues are welcome :-)

over the weekend i’m planning to upgrade the target to 11.1 and take for the hills.

danny