We have kicked around the term Easy Tier for a few weeks now and thought it was time to dissect the technology in detail.
What is IBM Easy Tier? It is an easy tool (setup in 15-30 minutes) that was designed to optimize data placement in a hybrid extent pool (Mix of SSD & HDD). Understand that it is a 2-tier architecture for data (hot & cold data sets) and that all candidate data is reviewed at the extent level (sub-volume level) for movement with-in the hybrid pool. The two tiers can be either SSD+FC or SSD+SATA drive types.
IBM Easy Tier is a free tool available on the DS8700, DS8800 (LIC code level requirements etc) & Storwize V7000 subsystems (Soon to be available on SVC via code set v6.1. Under the covers Easy Tier is a continuous learning algorithm that should have 24 hours (A.K.A Workload learning) of data prior to making recommendations. The algorithm can bring benefits to day-to-day workloads as well as the end of the quarter and year end workloads can
There are currently two modes to Easy Tier (Automatic & Manual Modes).
Easy Tier Automatic Mode enables facilities to autonomically optimize data placement among physical resources with different granularity, performance (and cost) characteristics.
In manual mode allows you to manually merge extent pools and relocate volumes
Other Easy Tier features – is fully aware of Copy Services (FlashCopy, MM/GM)
Oh, did I mention the price? It is FREE!