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Download OneFS 6.5.4 User Guide
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The Isilon iSCSI module • • • EUI: Displays the extended unique identifier (EUI), which uniquely identifies the LUN. You cannot modify this setting. NAA: Displays the LUN's T11 Network Address Authority (NAA) namespace. You cannot modify this setting. Serial number: Displays the serial number of the LUN. You cannot modify this setting. Control access to a logical unit You can specify whether a logical unit is offline or online. In order for initiators to discover and connect to a logical unit, the logical unit must be online. 1. On the File System menu, point to iSCSI, and then click Targets & Logical Units. The iSCSI Targets & Logical Units page appears. 2. In the Logical Units section, under Actions, click either Offline or Online for the logical unit whose access setting you want to modify. The Status icon changes color to indicate whether the logical unit is offline (gray) or online (green). Modify a logical unit You can modify certain settings for a logical unit. Note that some logical-unit settings cannot be modified. 1. On the File System menu, point to iSCSI, and then click Targets & Logical Units. The iSCSI Targets & Logical Units page appears. 2. In the Logical Units section, under Actions, click Edit for the logical unit that you want to modify. The iSCSI Edit Logical Unit page appears. 3. Modify the logical unit's settings as needed. 4. Click Submit. Delete a logical unit Deleting a logical unit permanently deletes all data on the logical unit. This operation cannot be undone. 1. On the File System menu, point to iSCSI, and then click Targets & Logical Units. The iSCSI Targets & Logical Units page appears. 2. In the Logical Units section, under Actions, click Delete for the logical unit that you want to remove. A confirmation dialog box appears. 3. Click Yes. Clone a logical unit As an alternative to creating a new logical unit from scratch, you can create a logical unit that is based on an exact point-in-time copy of an existing logical unit. The original (source) logical unit’s settings are copied to the new (clone) logical unit, enabling you to save time by modifying only the necessary settings. Note: The cloning process requires snapshots; to use the cloning feature, the Isilon SnapshotIQ module must be enabled on the cluster. SnapshotIQ is a separately licensed feature. For information about purchasing a SnapshotIQ license, contact your Isilon sales representative. Cloned copies of logical units can be part of the same target or a different target. Lun cloning, like LUN creation, is an asynchronous process. The status of in-progress cloning operations is monitored in the same way as LUN creation. A clone LUN is not accessible by iSCSI initiators until the cloning process is complete. Depending on the clone LUN type, the contents (blocks) of a source LUN are either copied or referenced, and the attributes may or may not be copied. In general, snapshot and shadow clone operations are fast, whereas normal clones can take several minutes or even hours to create depending on the size of the LUN. The following table provides further details about each cloning operation: 198 © 2011 Isilon Systems, LLC.
