Since upgrading to OS5 I have been having major issues with USB drives which were previously attached under OS3.
Whenever I re-attach a drive my EX4100 locks up. To the extent that the shares are no longer available and I can’t even log on via the web interface. So far I have tried leaving this for up to 8 hours. No indication of what is going on. Disconnecting the USB drive by itself does not resolve the problem I have had to cut the power to restart the system.
I am now shuffling files to try and get an empty USB drive to see if that makes any difference. I have the cloud access turned off so have not had the indexing issue on the internal drives/shares.
I spoke too soon. Had a power outage and system would not reboot. I had to disconnect all USB drives then cycle the power to get access to the EX4100. The unit boots Ok and shares all available however if I plug in a USB drive I get a frozen EX4100 with no access by web or shared drives. Either the on light keeps flashing or it goes to solid blue but either way I cannot logon to the unit and the only way to restart is to cycle the power again.
I have tested the USB drives in my PC and they scan without errors and have all of their data.
Any idea when the next update for USB issues is due?
I have given up on trying to connect USB drives to this NAS and have gone back to using a USB hub to directly connect to my PC. Not how I wanted to set things up but it does work.
@Flexware in OS 5, USB Shares have “Mobile & Web Access” enabled by default which means we index 100% of the content on the USB drives. Setting this option to OFF may help