Problem: Preallocated 200 gb iSCSI drive shows up as 215 gb in OSX Disk Utility.
I am using a DS209+II (latest firmware) with two 1 tb drives in Raid 1 as NAS for my MacBook Pro at work and ran into something strange when setting up an iSCSI disk to be used for a Time Machine backup drive. I setup the iSCSI drive using DiskStation Manager 2.3 as a preallocated 200 gb disk, setup the globalSAN iSCSI initiator 4 beta for OS X, and connected to the iSCSI disk without issue. Once I go into Disk Utility I see that the drive is showing as 215 gb instead of 200 gb. I initialized the drive anyways using 2 partitions - 1 Mac OS Extended (Journaled) 200 gb, 1 Free Space 15 gb. Everything works fine but I wanted to post here to see if anyone had a similar issue? I am just hoping that, over time, the drive will remain stable as it fills up. I want it to get no larger than 200 gb, and in the DiskStation Manager it says 200 gb are all that are being used. Thoughts?