Volumes provide a way to allocate storage available in a storage pool and share it over the network.
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So, there is a thick-provisioned volume which reserves 1 TB of the available 3 TB storage pool and there are also 2 thin-provisioned volumes up to 2 TB of thin-provisioned storage space available to each of them.
Note: As each thin-provisioned volume grows with actual data written to the volume, the available storage pool space for all thin-provisioned volumes shrinks to the remaining unused storage pool space. Volumes allocate and organize storage, and are published for sharing on the network using either CIFS (Common Internet File System) or NFS (Network File System).
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Configure block device volumes as LUNs (block data storage devices), for use with iSCSI targets.
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