Hitachi Dynamic Link Manager Software Users Guide for Linux

Operation Command
- SUSE LINUX Enterprise Server and a Brocade HBA driver
Execute the following command:
# echo "- - -" > /sys/class/scsi_host/hostn/scan
Execute the following command to check whether the OS has
recognized any devices:
# cat /proc/scsi/scsi
If the OS has not recognized any devices, execute the
following commands in the order shown:
# echo "1" > /sys/class/fc_host/hostn/issue_lip
# echo "- - -" > /sys/class/scsi_host/hostn/scan
If you are using Red Hat Enterprise Linux 5, Red Hat
Enterprise Linux 6, or SUSE LINUX Enterprise Server, the
devices might be automatically recognized by the OS hot plug
function. If the devices are recognized, the above procedure is
not necessary.
Adding a device
(for IP-SAN
environments)
• For a device added to the target for which no session is
established with the iSCSI initiator
Execute the following command to make the OS recognize the
target:
# iscsiadm -m discovery -t sendtargets -p IP-address-
of-the-target
Then, log in to the target to establish a session.
# iscsiadm -m node -T target-name -p IP-address-of-
the-target:port-number-of-the-target --login
• For a device added to the target for which a session is
established with the iSCSI initiator
Execute the following command:
# iscsiadm -m session -R
Deleting a
device
(for FC-SAN
environments)
# dlmcfgmgr -o logical-device-file-name-of-the-relevant-
HDLM-device
# echo "scsi remove-single-device a b c d" > /proc/scsi/
scsi
# dlmcfgmgr -i logical-device-file-name-of-the-relevant-
HDLM-device
If you are using SUSE Linux Enterprise Server 11, Red Hat
Enterprise Linux 6, Oracle Unbreakable Enterprise Kernel 5, or
Oracle Unbreakable Enterprise Kernel 6, the above procedure is
not necessary for deleting a path that is in disconnected status.
Deleting a
device
(for IP-SAN
environments)
# echo "scsi remove-single-device a b c d" > /proc/scsi/
scsi
If you are using SUSE Linux Enterprise Server 11, Red Hat
Enterprise Linux 6, Oracle Unbreakable Enterprise Kernel 5, or
Oracle Unbreakable Enterprise Kernel 6, the above procedure is
not necessary for deleting a path that is in disconnected status.
Legend:
a: Host ID (host port number)
4-60
HDLM Operation
Hitachi Dynamic Link Manager (for Linux®) User Guide