Dell EqualLogic PS6210XV PS6210 Installation and Setup Guide - Page 33

PS6210 Install and Setup Guide 5 Storage Allocation Field folder Storage pool assignment Description Shortcut Key folder from the drop-down list to create the volume in this folder. Folders help you organize large collections of volumes into logical groups. Volumes can also be moved into folders after they are created. If the group has multiple storage pools, select the storage pool you want to create the volume in. Click the radio button next to the pool's name to select it. Unless otherwise specified, the default storage pool is used. None Step 2: Space Field Description Shortcut Key Volume size A numeric value that specifies the size of the new volume. Select appropriate units (MB, GB, or TB) from the drop-down list. The minimum volume size is 1MB. The maximum volume size is given, based on the physical capacity of your storage pool. Size: Alt+S Unit of measure: up and down arrow keys Thin provisioned volume Enables thin provisioning on the volume. Thin provisioning allocates space based on how much is actually used, but gives the impression the entire volume size is available. For example, a 100GB volume can be thin provisioned so only 20GB is physically allocated; the remaining 80GB becomes Unreserved space still available to the storage pool. Additional space can be allocated to the volume as necessary. Alt+T Snapshot reserve Specifies how much additional space should be reserved to store snapshots of this volume. The default setting is 100% of the maximum volume size. At 100%, a 20GB volume would consume 40GB of storage space: 20GB for storage and 20GB for snapshots. Alt+R Reported Volume Size Estimated changes in storage pool default A graphic illustration of the space allocation on the volume. When thin provisioning is enabled, this illustration 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. • Purple = Minimum Volume Reserve. Specifies, as a percentage of the Spacebar opens a volume size, how much usable space is allocated on the volume. dialog box called • Yellow = In-use warning limit. Generates a warning message when Adjust marker the specified percentage of the minimum volume reserve is values consumed. For example, if the mininum volume reserve is 20GB and the warning limit is 80%, the warning message will occur when 16GB is consumed (or free space falls below 4GB). • Red = Maximum in-use space. The maximum amount of space that can be allocated on the volume. This amount is 100% by default (the entire volume size) but can be reduced if desired. This table estimates how the currently proposed volume size and snapshot settings affect the existing space in the designated storage None pool. 25