On Sep 29, 10:29 am, [EMAIL PROTECTED] wrote: > On Sep 28, 8:58 am, Nick <[EMAIL PROTECTED]> wrote: > > > I'm trying to use open-iscsi to connect to an iSCSI-based tape > > library. The library has two drives, so there are three IDs. > > Unfortunately, the library is picky about having the same SCSI IDs as > > are configured directly on the library, which means on the iSCSI > > client end I need to make sure that the devices show up with those > > same IDs. This presents two problems: > > 1) Each of the devices is presented as a separate iSCSI target. This > > means that when open-iscsi connects to these three targets, they each > > get put on a different SCSI bus. Any way to force all three targets > > onto the same bus? > > 2) open-iscsi starts ID numbering at 0. Is there any way to configure > > an iSCSI target to show up at a certain ID? So, my tape library is > > SCSI ID 8, my first drive is 9, and my second drive is 10. Is there > > any way to configure these targets to show up at IDs 8, 9, and 10? > > Are you familar with udev? Each target has a unique name right? Since > each target has one device, you could write a udev rule that grabs the > target name and for target X creates a special /dev/my_device_name for > the tape device accessed through it.
But the changer doesn't work by device names, it works by device IDs. This is the message I get when the changer loads: ch0: type #1 (mt): 0x0+1 [medium transport] ch0: type #2 (st): 0x3e8+20 [storage] ch0: type #3 (ie): 0xa+0 [import/export] ch0: type #4 (dt): 0x1f4+2 [data transfer] ch0: dt 0x1f4: ID 9, LUN 0, Huh? device not found! ch0: dt 0x1f5: ID 10, LUN 0, Huh? device not found! ch0: INITIALIZE ELEMENT STATUS, may take some time ... ch0: ... finished ch 21:0:0:0: Attached scsi changer ch0 ch 21:0:0:0: Attached scsi generic sg2 type 8 As you can see, it's looking for specific SCSI IDs, probably on the same SCSI bus, to try to find the tape devices. -Nick --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
