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packages:iscsi [2014/05/14 18:46] admin created |
packages:iscsi [2016/09/09 15:58] (current) admin [Adding an appropriate IP address] |
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| + | ==== Adding an appropriate IP address ==== | ||
| + | |||
| + | Depending on the server's iscsi portal configuration, it might be necessary to add an appropriate IP address to the initiator's machine network interface (NIC). If this is required, here is how to do it, in this case temporarily adding the appropriate IP address to the eth0 interface ([[https://www.garron.me/en/linux/add-secondary-ip-linux.html|reference]]): | ||
| + | |||
| + | <Code:bash> | ||
| + | > sudo ip address add 10.1.1.55/24 dev eth0 | ||
| + | </Code> | ||
| + | |||
| + | Once done, the temporary IP address can be removed using: | ||
| + | |||
| + | <Code:bash> | ||
| + | > sudo ip address del 10.1.1.55/24 dev eth0 | ||
| + | </Code> | ||
| ===== discover target ===== | ===== discover target ===== | ||
| + | |||
| <code> | <code> | ||
| - | > iscsiadm -m discovery -t sendtargets -p <10.0.0.50> | + | > sudo iscsiadm -m discovery -t sendtargets -p <10.0.0.50> |
| 10.0.0.50:3260,1 iqn.2013-05.world.server:target00 | 10.0.0.50:3260,1 iqn.2013-05.world.server:target00 | ||
| </code> | </code> | ||
| - | # confirm status after discovery | + | === Confirm status after discovery === |
| - | + | <code> | |
| - | root@client:~# | + | > sudo iscsiadm -m node -o show [-n iqn.2013-05.world.server:target00] |
| - | iscsiadm -m node -o show | + | |
| # BEGIN RECORD 2.0-873 | # BEGIN RECORD 2.0-873 | ||
| node.name = iqn.2013-05.world.server:target00 | node.name = iqn.2013-05.world.server:target00 | ||
| Line 44: | Line 56: | ||
| ..... | ..... | ||
| ..... | ..... | ||
| - | # login to target | + | # END RECORD |
| + | </code> | ||
| - | root@client:~# | + | === Login to target === |
| - | iscsiadm -m node --login | + | |
| + | <color darkslateblue>**Login to all targets**</color> | ||
| + | <code> | ||
| + | > sudo iscsiadm -m node --login | ||
| Logging in to [iface: default, target: iqn.2013-05.world.server:target00, portal: 10.0.0.50,3260] (multiple) | Logging in to [iface: default, target: iqn.2013-05.world.server:target00, portal: 10.0.0.50,3260] (multiple) | ||
| Login to [iface: default, target: iqn.2013-05.world.server:target00, portal: 10.0.0.50,3260] successful. | Login to [iface: default, target: iqn.2013-05.world.server:target00, portal: 10.0.0.50,3260] successful. | ||
| - | # confirm session | + | </code> |
| - | root@client:~# | + | <color darkslateblue>**Login to one target**</color> |
| - | iscsiadm -m session -o show | + | <code> |
| + | > sudo iscsiadm -m node --target iqn.2014-05.4d --portal 10.1.1.2:3260 --login | ||
| + | </code> | ||
| - | tcp: [1] 10.0.0.50:3260,1 iqn.2013-05.world.server:target00 | + | Associated iSCSI disks should show up on the machine. |
| - | # confirm partitions | + | |
| - | root@client:~# | + | <color darkslateblue>**Disconnect from node (unmounting iSCSI volumes):**</color> |
| - | cat /proc/partitions | + | <code> |
| + | > sudo iscsiadm -m node -u | ||
| + | </code> | ||
| - | major minor #blocks name | + | === Confirm session === |
| - | 8 | + | <code> |
| - | 0 | + | > sudo iscsiadm -m session -o show |
| - | 31457280 | + | tcp: [1] 10.0.0.50:3260,1 iqn.2013-05.world.server:target00 |
| - | sda | + | </code> |
| - | 8 | + | === Confirm partitions === |
| - | 1 | + | <code> |
| - | 512000 | + | > cat /proc/partitions |
| - | sda1 | + | major minor #blocks name |
| - | + | ||
| - | 8 | + | |
| - | 2 | + | |
| - | 30944256 | + | |
| - | sda2 | + | |
| - | + | ||
| - | 253 | + | |
| - | 0 | + | |
| - | 20971520 | + | |
| - | dm-0 | + | |
| - | 253 | + | 8 0 488386584 sda |
| - | 1 | + | 8 1 204800 sda1 |
| - | 6160384 | + | 8 2 26460160 sda2 |
| - | dm-1 | + | 8 3 1 sda3 |
| + | 8 5 435505152 sda5 | ||
| + | 8 6 10485760 sda6 | ||
| + | 8 7 5242880 sda7 | ||
| + | 8 8 10482688 sda8 | ||
| + | 11 0 1048575 sr0 | ||
| + | 8 16 204800 sdb | ||
| + | </code> | ||
| - | 253 | + | ----- |
| - | 2 | + | On Debian, iSCSI discovery stores nodes (targets to extents associations, or LUNs) in **/etc/iscsi/nodes** |
| - | 3809280 | + | ----- |
| - | dm-2 | + | === iSCSI Documentation === |
| - | + | [[https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Online_Storage_Reconfiguration_Guide/iscsilogin.html]] | |
| - | 8 | + | |
| - | 16 | + | |
| - | 104857600 | + | |
| - | sdb | + | |
| - | # added new device provided from target | + | |
| - | </code> | + | |
