Using RAIDiator 4.2.30 on my NAS, I've made several shares with different user settings.
How can I setup the same user + group sharing settings for an iSCSI volume?
It seems the file transfer performance is faster on a iSCSI volume compared to a regular share. Is this a fact or should it be - theoretically - the same?
iSCSI provides block storage (e.g., raw storage). The client is responsible for formatting it, and also is responsible for file permissions. Think of it as a virtual disk.
Shares can be accessed simultaneously by multiple users. iSCSI can't be - it is intended to provide storage for a single client.
Also, ISCSI is opaque to the NAS - it has no idea what files are stored in the iSCSI LUN. If you back up the LUN from the NAS, you need to save the entire LUN - there is no incremental backup for iSCSI possible with OS 4.2. (Business OS 6 NAS can use ReadyDR, though even that is a block-by-block backup. iSCSI is still opaque to the NAS).
I haven't benchmarked iSCSI vs SMB, but from what I've read I suspect that iSCSI is faster for small file transfers, but SMB is somewhat faster for large file transfers. Though that might well depend on the NAS model.
