V7000产品高级特性介绍讲解材料.pptVIP

* 旧平台存储挂载，内部数据拷贝，拷贝过程中不影响应用对数据的持续访问 算法把经常访问到的数据块迁移到SSD盘中，提高对数据访问的响应性能 * andreas_baer@ * Striping – extent size * andreas_baer@ * For internal storage, the tier is selected automatically. But Storwize V7000/SVC cannot recognize the drive type. * andreas_baer@ * Easy Tier is active because we have MDisks with two different tiers. The internal SSD array is recognized automatically, the tiers for the external MDisks must be defined manually. Note: If you make a wrong definition for the external MDisks, then Easy Tier optimizes into the wrong direction!See in the screenshot the tier of mdisk1! Why Easy Tier? Compare: history of memory management SSDs (Solid State Drives) Very high performance but expensive per GB Get most value from SSD investment: use SSDs efficiently So far: manual optimization of volume placement by administrators - monitor, analyze, adjust Better: automate optimization In general only portion of Volume really requires performance of SSDs Let only that portion of the Volume reside on SSDs Save expensive SSD capacity to utilize for other volumes! ?Introduce Automated Optimization for portions of Volumes: Easy Tier Solution: Easy Tier What this is A function that automatically and dynamically maximizes the storage resource utilization in a storage system by migrating hotspots to SSD drives. Dynamic Virtual volume Logical view of workload temperature Host System Why it matters High performance storage (e.g., solid-state devices) are very expensive and become economical only when fully utilized Allowing dynamic movement of the busiest extents to the highest performance storage Adapts optimal placement to workload Continuous optimization cycle, no manual involvement SVC/Storwize V7000 – Volume Extent based optimization SSD Storage Pool HDD Storage Pool Hybrid Storage Pool (SSD HDD) Easy Tier Enabled in Hybrid Pool Volume Based Data Migration Easy Tier Automated Data Migration Change Disk Class Change RAID Type Change RPM Change Striping Tier