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!
STAT (Storage Advisor Tool)
Get out there and learn more about IBM Easy Tier