Confusion with 2312i and host based iscsi access

[Salon Media]

seems that i'm confused on how exactly hosts access the MSA 2312i. We are using the open-iscsi utility to setup an initiator on CentOS/RHEL. I can do this and see the host come up, but then I have a ton of entries when I do an fdisk -l

How to specify the correct volume when attaching the host to the target?

Is it simply from the SMU to setup an explicit mapping per host connected so only that host can have Read-Write or Read only permissions?

earlier today I had 4 volumes, with default mappings opened up, and fdisk showed /dev/sde, sdf, sdh, sdi, etc.. all the correct size of the volumes I created. But.... there were also like 10 other sdX entries, all the same size again, but this time not showing a valid partition table -- when I removed the mappings for the other 3 volumes, then the fdisk output only showed the disk entries that had valid partition tables. However, I still don't know which is what volume from fdisk

Disk /dev/sda: 438.4 GB, 438489317376 bytes
255 heads, 63 sectors/track, 53309 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1288 10241437+ 83 Linux
/dev/sda3 1289 1549 2096482+ 82 Linux swap / Solaris
/dev/sda4 1550 53309 415762200 5 Extended
/dev/sda5 1550 53309 415762168+ 83 Linux

Disk /dev/sdc: 1000.2 GB, 1000237170688 bytes
255 heads, 63 sectors/track, 121605 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdc1 1 121605 976792131 83 Linux

Disk /dev/sde: 2048.0 GB, 2048000000000 bytes
255 heads, 63 sectors/track, 248988 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sde1 1 248988 1999996078+ 83 Linux

Disk /dev/sdf: 2048.0 GB, 2048000000000 bytes
255 heads, 63 sectors/track, 248988 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdf1 1 248988 1999996078+ 83 Linux

Disk /dev/sdh: 2048.0 GB, 2048000000000 bytes
255 heads, 63 sectors/track, 248988 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdh1 1 248988 1999996078+ 83 Linux

Disk /dev/sdi: 2048.0 GB, 2048000000000 bytes
255 heads, 63 sectors/track, 248988 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdi1 1 248988 1999996078+ 83 Linux