Dell EqualLogic PS6210XS EqualLogic Group Manager Administrator s Guide PS Ser - Page 430

Field Description Shortcut At 100%, a 20GB volume would consume 40GB of storage space: 20GB for storage and 20GB for snapshots. Reported Volume Size Displays the space allocation on the volume. When thin provisioning is enabled, this field becomes a space allocating tool outfitted with 3 sliding pointer controls colored purple, yellow, and red, respectively. Click and drag the pointers to slide them back and forth. • Minimum volume reserve - Specifies, as a percentage of the volume size, how much usable space is allocated on the volume. • In-use warning limit - Generates a warning message when the specified percentage of the minimum volume reserve is consumed. For example, if the minimum volume reserve is 20GB and the warning limit is 80%, the warning message will occur when 16GB are consumed (or free space falls below 4GB). • Maximum in-use space - Specifies the maximum amount of space that can be allocated on the volume. This default is 100% (the entire volume size), but can be reduced if desired. Use the Tab key to focus on the reported volume size bar. The space bar opens the Adjust marker values dialog box. Estimated changes in storage pool default Estimates how the currently proposed volume size and snapshot settings affect the None existing space in the designated storage pool. Table 218. Define iSCSI Access Points Field Description Shortcut What kind of access type do you want for this volume? Copy access Displays the options for copying access controls from another volume Alt+P Select or define access Displays the options for defining or selecting an already existing access control control policies policy Alt+L Define one or more basic access points Displays the options for defining one or more basic access points Alt+F None (do not allow access) Denies access to the volume Alt+E Do you want to allow simultaneous access to this volume from more than one iSCSI initiator? Yes Allows multiple hosts access to the volume. In a shared storage environment, you must control computer access to iSCSI targets (volumes and snapshots), because multiple computers writing to a target in an uncoordinated manner might result in volume corruption. Some environments might need multihost access to a target. You can enable multihost access to a target if you meet any of the following conditions: • Your cluster environment gives the initiators on each cluster computer a different IQN, and the environment can manage multiple connections to a target. For example, the environment uses a Distributed Lock Manager or SCSI reservations. • Your multipathing solution does not use the same IQN on all initiators, and you cannot modify the names to be the same. • You use an environment, such as a virtual server, that can manage multiple connections to the same iSCSI target (for example, through SCSI reservations). • Initiators on a single computer do not use the same IQN. No Does not allow simultaneous access to the volume Alt+O 430 Reference: GUI Panels, Wizards, and Dialog Boxes