Slow “Quick Format iSCSI” performance

By | 24 December, 2015

Today I installed a new Windows 2012 server to be used as a Hyper-V host. I attached a Synology LUN and followed the procedure of getting the disk recognized within Windows (iSCSI initiator). As I final step i brought the disk online and performed a quick format (NTFS).

But… this quick format took a very long time and in the disk management console I could not see the progress of the format.
I then tried to use diskpart and when executed “format fs=NTFS QUICK” the progress indicator stayed at 0 procent for at least an half hour.

After trying all kinds of solutions I found one

  • issue the command “fsutil behavior set DisableDeleteNotify 1” before quick formatting the drive.

After that the quick format finished in less than 1 minute

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