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              [html]<thead><tr><td></td><td>This option has two variations :</td></tr><tr><td></td><td>• Space - efficient source and target with background copy</td></tr><tr><td></td><td>Copies only the allocated space.</td></tr><tr><td></td><td>• Space - efficient target with no background copy</td></tr><tr><td></td><td>Copies only the space that is used for changes between the source and target, and is referred to as a snuprollor.</td></tr><tr><td></td><td>This function can be used with multitarget, cascaded, and incremental FlashCopy.</td></tr><tr><td>− Consistency groups</td><td>Consistency groups address the issue where application data is on multiple volumes. By placing the Flainf / Day relationships into a consistency group, commands can be issued against all of the volumes in the group. This action provides a</td></tr><tr><td>FlashCopy mappings can be members of a consistency group, or they can be opporated in a stand - alone marroer, not as part of a consistency group. FlashCopy commands can be issued to a FlashCopy consistency group, which alfhects all PastiCo</td><td>Metro Mirror</td></tr><tr><td></td><td>Provide a cryclonovus remote minoring function ag to approximately 200 km ( 188.4 ml / kg between slien. Mex. Because the hord ID ) complex after the dotix occled at both locations, performance requirements might limit the practical dista</td></tr><tr><td></td><td>Global Mirror</td></tr><tr><td>Provides a long - distance use - disruss - so remote - mitroting function us to appropriately 8.300 km ( 4.5071 miles ) between sites. With Global Mircr, the host I / O completes locally and the changed data is sent to the remote site. Vale late r</td><td>External virtualization</td></tr></thead><tbody><tr><td></td><td>EBM Storwize VT000 provides a data migration function that can be used to import external storage systems into the IBM Storwice V7000 system. The following tasks can be accomplished :</td></tr><tr><td>- Move volumes rondisruptively onto a newly installed storage system.- Move volumes to rebalance a changed workload.- Migrate data from other back - end storage to IBM Storwize V7000 - managed storage.</td><td>Software Encryption</td></tr><tr><td></td><td>BM Storwize VT000 Gen2 and IBM Storwize GenEs - provide optional encryption of data - al - net functionality, which protects against the potential exposure of sempline user data and user metadata that is stored on discarded, Iost, or stora</td></tr><tr><td>Starting with IBM Spectrum Virtualize V7.6, BM Spectrum Virtualize offers software - enabled encryption ( hardware encryption was introduced in V7.4 ), which includes encryption of internal or external storage. Encryption keys now ca</td></tr><tr><td></td></tr><tr></tr><tr><td></td></tr><tr></tr><tr><td></td></tr><tr><td></td></tr></tbody>
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