G-Technology G-RACK 12, User Manual

Page: 263 / 296

F.A.Q.
p. 263
iSCSI Connection Issues
SNS support:
It is possible with two or more computers attached to an iSCSI LUB you make encounter stability
issues if you are disconnecting and then reconnecting an initiator, If the problem of connecting is
not happening on the computer you are doing the disconnect and reconnect on then, it is possible
the problem lies with the second computer.
Error detection used to be disabled by default on the initiator, but beginning with 10.8, OSX
introduced an issue where the occasional SCSI command would not be sent. We are only able to
produce this in our lab, and have not heard any reports of data loss in the field, but to be safe we
opted to enable the policy. We filed a bug report and have tested each subsequent OS X release.
Preliminary testing on the latest OS versions look good.
If you run into a problem like the one described above please check the following.
•
Has any other SAN software been installed on the workstation at any point?
• What are the OS versions on these machines? Do the OS versions match?
• Do you have another Mac to see if the symptom is reproduced there?
• Do you have any other SAN management software installed or antivirus software?
• Typically, when the AUSV feature blocks “unconverted” (aka non-SANmp) storage, it does so
silently.