On Windows 10 machine, right after iSCSI Initiator is setup to connect to drive rebooting of Windows takes ages. What usually was taking 5 seconds, it's now taking a minute. It doesn't matter if drive is mapped, but it's enough if iSCSI Initiator has connection to NAS. As soon as I remove that connection, and later on disable the service it gets back to fairly normal time.
I tried finding some option to enable quick dropping of iSCSI or something but weren't able to? Anyone had similar problem or knows solution to this? I've seen this since Windows 7, and it's still there in Windows 10. Most likely in server systems as well. But maybe there's no other way?
Best Answer
We noticed the same behaviour when we activated too much targets at our iSCSI Initiator. Although we used Windows Server 2012R2. But it was in fact that we had too much non-actual favourite targets at the corresponding list in iSCSI initiator. It was all because of frequent reconfigurations jobs we performed there. After removing redundant favourite targets, OS started booting faster. This might not be strictly because of misconfiguration in iSCSI initiator, but I would still recommend to check that. After all that phantom issues with windows iscsi initiator, I've come to believe anything :)