hmm .. are you using the right tape driver?
This setup has only very limited support.
Vmware supports it only with Adaptec Parallel SCSI adapters, and even then they direct you to the Backup Software/drive vendor for support for anything except basic connectivity.
I am having exactly the same issue did you ever get it to work?
We swapped our installation to ESXi update 1 instead of ESX and everything worked as it should
When we applied our ESX license to the ESXi installation we got all the same functionality
I believe that ESX is eventually going to be phased out and everyone will be migrating to an ESXi type system, it was a long time ago that I discussed this so I cant remember the details
Actually there is a big thing on their homepage recommending all new installations be done on ESXi and current ESX installations migrate to ESXi:
Hope this helps
If you use SCSI passthough you must add a rule in the host:
esxcli nmp satp deleterule --satp VMW_SATP_ALUA --claim-option tpgs_on
then reboot the host.
Otherwise, if the card is ONLY for the tape and your hardware is compliant with VMDirectPath, add the PCI card to the VM.