HP StorageWorks 6000 HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 113
VLS Automatic Performance Load Balancing, Virtual Drives across Multiple Nodes
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Figure 44 Virtual Drives across Multiple Nodes . VLS Automatic Performance Load Balancing The VLS always "thin provisions" its virtual cartridges and dynamically load balances all the incoming new backup data across the available back-end arrays to ensure that there are never any performance hotspots. When any virtual cartridge is written (in any virtual tape drive), it dynamically assigns which array LUNs will store the cartridge data based on which array LUNs are least active. When you have multiple virtual cartridges written concurrently, the load is always evenly balanced across the back-end arrays and will always provide maximum performance regardless of which virtual cartridges are use for backup. HP StorageWorks VLS and D2D Solutions Guide 113
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