On Mon, Jul 13, 2009 at 2:39 PM, Peter Cudhea<[email protected]> wrote: > @eneal -- > > ... > > The iSCSI "Target Portal Group" is basically a list of IP addresses that > determine which interfaces a given iSCSI target will listen on. The "itadm > create-tpg" command can be used to create a target portal group as a list of > ip-address:port specifiers. A specific iSCSI target is bound to that > target portal group with the "itadm modify-target -t" command. Once that > occurs, then an iSCSI listener will be created on each IP address in that > target portal group, listening for connections to that iSCSI target. So > this is the tool you use if you wish to restrict your iSCSI target to be > available only through one specific IP address. > > The STMF "host group" and "target group" notions are used for Logic Unit > Mapping (LUN Mapping), otherwise known as "COMSTAR Views". The set of > Logical Units that a particular SCSI initiator can see through a particular > I-T nexus is determined by the combined set of COMSTAR Views. Each LU has > an associated set of View Entries. Each view entry specifies a target > group and a host group and a LU number (LUN). The idea is that any > initiator that is a member of that specified host group, when connecting > through a target that is part of the specified target group, will see the > specified logical unit at the specified LUN. This is the method you can > use to restrict the set of LUs that a given initiator can see, and assign > the particular set of LU numbers that will be used. It is a very general > mechanism, so it can take a bit of getting used to. > > Peter C
That is a much better overall description. Though the main documentation says this, in so many words, I think yours would be ideal to add to man pages, or the Wiki. -- Brent Jones [email protected] _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
