This could be handy info for some. The target is set up on linux with stgt,
the initiator is on opensolaris.
Although most of it is probably well know to Solaris fans, it took me a
bit of time
to figure out to get the vtl (virtual tape library) target working fine
under opensolaris.
For those who want to give it a try, here are the commands:
For normal disk and cd targets no files have to be changed. All you need
is the following:
# svcadm enable iscsi_initiator
and check if it is online:
# svcs iscsi_initiator
the state should be online.
Now we add the discovery address to the initiator:
# iscsiadm add discovery-address <IP of target>
Now we configure the discovery mode to sendtargets:
# iscsiadm modify discovery -t enable
Check the target:
# iscsiadm list target -S
And create the device files:
# devfsadm -i iscsi
Tape devices will be shown properly, but not the changer device, this
takes a bit more work.
Two files need to be changed, and a reboot is needed to set things up
properly.
In the file /etc/driver_aliases the two lines
sgen "scsa,08.bfcp"
sgen "scsa,08.bvhci"
need to be replaced with
sgen "scsiclass,08"
The file /kernel/drv/sgen.conf, which is basically all commented out
needs to have the following lines:
device-type-config-list="changer","sequential";
inquiry-config-list= "*", "*";
name="sgen" class="scsi" target=0 lun=4;
name="sgen" class="scsi" target=1 lun=4;
name="sgen" class="scsi" target=2 lun=4;
name="sgen" class="scsi" target=3 lun=4;
name="sgen" class="scsi" target=4 lun=4;
name="sgen" class="scsi" target=5 lun=4;
name="sgen" class="scsi" target=6 lun=4;
name="sgen" class="scsi" target=7 lun=4;
name="sgen" class="scsi" target=8 lun=4;
name="sgen" class="scsi" target=9 lun=4;
name="sgen" class="scsi" target=10 lun=4;
name="sgen" class="scsi" target=11 lun=4;
name="sgen" class="scsi" target=12 lun=4;
name="sgen" class="scsi" target=13 lun=4;
name="sgen" class="scsi" target=14 lun=4;
name="sgen" class="scsi" target=15 lun=4;
For the last bit it should be noted that my changer was set to lun 4,
and since I don't know which target I put all target numbers in (0-15).
After these modifications the best is to reboot the machine, and do the
iscsi commands
above, and he presto it works:
In my case, three tape drives and one changer:
root@solar:/kernel/drv# iscsiadm list target -S
Target: iqn.2008-09.com.example:server.tape
Alias: -
TPGT: 1
ISID: 4000002a0000
Connections: 1
LUN: 4
Vendor: STK
Product: L700
OS Device Name: /dev/scsi/changer/c0t0d0
LUN: 3
Vendor: HP
Product: LTO3 ULTRIUM
OS Device Name: /dev/rmt/2n
LUN: 2
Vendor: HP
Product: LTO3 ULTRIUM
OS Device Name: /dev/rmt/1n
LUN: 1
Vendor: HP
Product: LTO3 ULTRIUM
OS Device Name: /dev/rmt/0n
root@solar:/kernel/drv# mtx -f /dev/scsi/changer/c0t0d0 status
Storage Changer /dev/scsi/changer/c0t0d0:3 Drives, 29 Slots ( 5
Import/Export )
Data Transfer Element 0:Empty
Data Transfer Element 1:Empty
Data Transfer Element 2:Empty
Storage Element 1:Full :VolumeTag=A0000001
Storage Element 2:Full :VolumeTag=A0000002
Storage Element 3:Full :VolumeTag=A0000003
Storage Element 4:Full :VolumeTag=A0000004
Storage Element 5:Full :VolumeTag=A0000005
Storage Element 6:Full :VolumeTag=A0000006
Storage Element 7:Full :VolumeTag=A0000007
Storage Element 8:Full :VolumeTag=A0000008
Storage Element 9:Empty:VolumeTag=
Storage Element 10:Empty:VolumeTag=
Storage Element 11:Empty:VolumeTag=
Storage Element 12:Empty:VolumeTag=
Storage Element 13:Empty:VolumeTag=
Storage Element 14:Empty:VolumeTag=
Storage Element 15:Empty:VolumeTag=
Storage Element 16:Empty:VolumeTag=
Storage Element 17:Empty:VolumeTag=
Storage Element 18:Empty:VolumeTag=
Storage Element 19:Empty:VolumeTag=
Storage Element 20:Empty:VolumeTag=
Storage Element 21:Empty:VolumeTag=
Storage Element 22:Empty:VolumeTag=
Storage Element 23:Empty:VolumeTag=
Storage Element 24:Full :VolumeTag=CLN00001
Storage Element 25
IMPORT/EXPORT:Empty:VolumeTag=
Storage Element 26
IMPORT/EXPORT:Empty:VolumeTag=
Storage Element 27
IMPORT/EXPORT:Empty:VolumeTag=
Storage Element 28
IMPORT/EXPORT:Empty:VolumeTag=
Storage Element 29
IMPORT/EXPORT:Empty:VolumeTag=
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