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      Forum closed   06/30/2018

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Using globalSAN Initiator on MAC OS Sierra (10.12.2), I experience a problem with iSCSI Disks created on QNAP TS-451+.

When trying to connect a LUN, globalSAN (or MAc, can't say exactly) tells me that the disk cannot be read by this computer and must be initialized.

The Disk Utility program is called up, and when I choose "Erase", the process starts, but ends with a message that the Disk "disk3s2 couldn't be mounted


I found a workaround with ssh into the Mac as sudo, creating a new directory in /Volumes and mounting the disk on that new directory, followed by a sudo chmod 777 on the disk.


The icon for the LUN appears after e few seconds on the Desktop and in Finder, but doesn't survive a restart of the MAC.


I also tried on a Windows 10 PC with the build-in Microsoft Initiator, for another LUN created especially for this PC. It works, including NTFS formatting, and the LUN is shown as a device, and survives a reboot of the PC.


Does anyone experience a similar problem?

Thank everybody  for suggestions and help




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Is SANmp installed as well? If not, this sounds like it may be a bug in Disk Utility. As a troubleshooting step, it may be a good idea to try formatting using an older version of OS X, or using the diskutil command line options to format the disk instead.

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