User Manual

Rev 2.1-1.0.6
Mellanox Technologies
237
1. Run:
modprobe ib_srp
2. Run:
ibsrpdm -c -d /dev/infiniband/umadX
(to discover a new SRP target)
3. echo {new target info} > /sys/class/infiniband_srp/srp-mthca0-1/add_target
4. fdisk -l (will show the newly discovered scsi disks)
Example:
Assume that you use port 1 of first HCA in the system, i.e.: mthca0
OR
•
You can edit /etc/infiniband/openib.conf to load the SRP driver and SRP High Avail-
ability (HA) daemon automatically, that is: set “SRP_LOAD=yes” and
“SRPHA_ENABLE=yes”
• To set up and use the HA feature, you need the dm-multipath driver and multipath tool
• Please refer to OFED-1.x SRP's user manual for more detailed instructions on how-to
enable/use the HA feature
The following is an example of an SRP Target setup file:
umad0: port 1 of the first HCA
umad1: port 2 of the first HCA
umad2: port 1 of the second HCA
[root@lab104 ~]# ibsrpdm -c -d /dev/infiniband/umad0
id_ext=0002c90200226cf4,ioc_guid=0002c90200226cf4,
dgid=fe800000000000000002c90200226cf5,pkey=ffff,service_id=0002c90200226cf4
[root@lab104 ~]# echo id_ext=0002c90200226cf4,ioc_guid=0002c90200226cf4,
dgid=fe800000000000000002c90200226cf5,pkey=ffff,service_id=0002c90200226cf4 > /sys/
class/infiniband_srp/srp-mthca0-1/add_target
*********************** srpt.sh *******************************
#!/bin/sh
modprobe scst scst_threads=1
modprobe scst_vdisk scst_vdisk_ID=100
echo "open vdisk0 /dev/cciss/c1d0 BLOCKIO" > /proc/scsi_tgt/vdisk/vdisk
echo "open vdisk1 /dev/sdb BLOCKIO" > /proc/scsi_tgt/vdisk/vdisk
echo "open vdisk2 /dev/sdc BLOCKIO" > /proc/scsi_tgt/vdisk/vdisk
echo "open vdisk3 /dev/sdd BLOCKIO" > /proc/scsi_tgt/vdisk/vdisk
echo "add vdisk0 0" > /proc/scsi_tgt/groups/Default/devices
echo "add vdisk1 1" > /proc/scsi_tgt/groups/Default/devices
echo "add vdisk2 2" > /proc/scsi_tgt/groups/Default/devices
echo "add vdisk3 3" > /proc/scsi_tgt/groups/Default/devices
modprobe ib_srpt