- Website designed to help IT pros advance their careers - Born to Learn HP 3PAR Dynamic Optimization Software is an optional product that allows the underlyingcharacteristics of a volume to be changed transparently and without disruption of service. Drive type,RAID level and configuration, and high availability options can all be changed simply, easily, andnon-disruptively. Unlike traditional arrays, where a poor initial choice can be difficult and/or costly tochange, Dynamic Optimization allows changes to be made easily.Dynamic Optimization also makes it easy for IT personnel to adapt to the changing needs of amodern, dynamic computing environment. For example, a previously high-priority project that usedRAID 1 on high-performance Fibre Channel disks could be moved to more cost-effective RAID 5storage on SATA disks.Another use of Dynamic Optimization is to redistribute volumes after adding drives to an HP 3PARUtility Storage array. Using Dynamic Optimization, existing volumes are autonomically striped acrossexisting and new drives for optimal volume performance after capacity expansions. The increase inthe total disks for the provisioned volume contributes to higher performance.Question: Note:HP 3PAR F400 Storage system with NearLine (SATA) disk drives"Adaptive Optimization: autonomic sub-volume tuningHP 3PAR Adaptive Optimization Software is a fine-grained, policy-driven, autonomic storage softwaresolution that delivers service level optimization for enterprises and cloud datacenters at the lowestpossible cost while increasing agility and minimizing risk. Adaptive Optimization analyzesperformance (access rates) for sub-volume regions, then selects the most active regions (those with thehighest I/O rates) and uses the proven sub-volume data movement engine built into HP 3PAR InFormOperating System Software to autonomically move those regions to the fastest storage tier. It alsomoves less active regions to slower tiers to ensure space availability for newly-active regions.Traditional storage arrays require the storage administrator to choose between slow, inexpensivestorage and fast, expensive storage for each volume—a process that depends on the storageadministrator’s knowledge of the application’s storage access patterns. Moreover, volumes tend tohave hot spots rather than evenly-distributed accesses, and these hot spots can move over time.Using Adaptive Optimization, an HP 3PAR array configured with SATA disks plus a small number ofSolid State Drives (SSDs) can approach the performance of an all-SSD configuration at little more thanthe cost per megabyte of SATA-based storage, adapting autonomically as access patterns change.HP 3PAR Dynamic Optimization and Adaptive Optimization Softwarecan be used to make this change on active volumes without any downtime orinterruption. Dynamic Optimization tunes entire volumes with minimal performanceimpact to the array. Adaptive Optimization provides even finer-grained tuning, moving sub-volumeregions between storage tiers in response to changing performance.
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- Fall '16
- Storage area network, RAID, HP 3PAR