rssTesting iSCSI with 2 Raspberry Pi’s
- Important
- Setup an initiator (client) on rpi-2
- More info with initiator target
- Setup target
- Setup a target automatically
- Setup a target manually
- Add LUN
- Connect from initiator
rpi-1: target: 192.168.5.31
rpi-2: initiator: 192.168.5.32
Important
Source: https://groups.google.com/forum/#!topic/open-iscsi/iAwrdax-mSA
"open-iscsi is only a initiator. For a target you need something like IET or SCST or tgt, or in RHEL5.3 I think there is scsi-target-utils which is a rpm/package of tgt (you might have to have some sort of special storage/clustering thing with red hat to get it though)."
Setup an initiator (client) on rpi-2
Source: http://elinux.org/RPi_iSCSI_Initiator
More info with initiator <-> target
http://www.howtoforge.com/using-iscsi-on-debian-squeeze-initiator-and-target
Setup target
rpi-1# apt-get install tgt
Start tgt daemon
rpi-1# /usr/sbin/tgtd --iscsi portal=192.168.5.31:3260
You get “error” messages:
librdmacm: couldn't read ABI version. librdmacm: assuming: 4 CMA: unable to get RDMA device list (null): iser_ib_init(3263) Failed to initialize RDMA; load kernel modules? (null): fcoe_init(214) portal=192.168.5.31:3260
These can be safely ignored: we do not do RDMA (see url: http://osdir.com/ml/debian-bugs-dist/2010-09/msg08226.html )
Verify the daemon is running:
rpi-1# netstat -ntulp | grep 3260
Setup a target automatically
rpi-1# tgt-setup-lun -d /dev/loop0 -n my_target 192.168.5.32 Using transport: iscsi Creating new target (name=iqn.2001-04.com.rpi-1-my_target, tid=1) Adding a logical unit (/dev/loop0) to target, tid=1 Accepting connections only from 192.168.5.32
Setup a target manually
rpi-1# tgtadm --lld iscsi --op new --mode target --tid 1 -T \ iqn.2013-11.nl.kwalinux:storage.disk1.rpi-1
The target name must be a globally unique name, the iSCSI standard defines the “iSCSI Qualified Name” as follows:
iqn.yyyy-mm.
Add LUN
rpi-1# tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /storage/disk1 rpi-1# tgtadm --lld iscsi --op show --mode target rpi-1# tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL
Connect from initiator
rpi-2# iscsiadm --mode discovery --type sendtargets --portal 192.168.5.31 rpi-2# iscsiadm --mode node \ --targetname iqn.2013-11.nl.kwalinux:storage.disk1.rpi-1 \ --portal 192.168.5.31:3260 --login rpi-2# fdisk -l rpi-2# mount /dev/sda1 /mnt
Done!