Dell EqualLogic PS6210XS EqualLogic Master Glossary PS Series - Page 10
Manager VSM
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• Extends the existing snapshot and local replica borrowing capability to enable borrowing from unused delegated space • Provides borrowing to remote replicas so that they can borrow space beyond their replica reserve (similar to snapshot borrowing) SupportAssist synchronous replication (SyncRep) An optional component of SAN Headquarters that enables you to collect, and optionally upload, PS Series group configuration diagnostic data to Dell Technical Support for analysis and diagnosis. SupportAssist is bundled with every SAN Headquarters server and configured from the SAN Headquarters client. (Group Manager) The simultaneous writing of data to two pools for a volume in the same PS Series group, resulting in two hardware-independent copies of the volume data. Each write must go to both pools before the write is acknowledged as complete. If one copy of the volume data is not available, you can still obtain the data from the other pool. T template volume thin clone thin provisioning Read-only volume from which you create thin clones. A volume that shares space with a template volume. Thin clones provide an efficient use of storage space for configurations with multiple volumes that have a large amount of common data. (Group Manager) The process of optimizing the use of storage space in a group through overallocation. An object (such as a volume) is attributed less physical space than is reported by the group to any computer that is connected to the volume. U unmanaged space Delegated space capacity on the secondary group that is no longer accessible from the primary group. See replica reserve. V Virtual Storage An application packaged as a plug-in to VMware vSphere that provides Dell EqualLogic's storage efficiency, Manager (VSM) for performance, and data protection, along with additional functions and tasks that can be applied to VMware VMware vSphere objects. volume Storage allocated by a PS Series group as an addressable iSCSI target. volume administrator An account on a PS Series group that has permission to manage a quota of storage in one or more pools. A volume administrator can perform any volume operations, including replication, within their quota limit. volume collection (Group Manager) A number of volumes grouped together for purposes of performing operations on the volumes simultaneously. See snapshot collection and replica collection. volume folder (Group Manager) A folder that you can use to organize volumes in the Group Manager GUI. Volume folders are an organizational tool only; they do not affect the volumes they contain. volume reserve (Group Manager) The amount of space allocated to a volume from free pool space. Without thin provisioning, volume reserve is the same as the reported size. 10 Glossary Definitions