
362 Implementing the IBM Storwize V7000 V6.3
If an external SSD is used, you must select the tier manually, as described in 7.2.4, “Selecting
the tier for MDisks” on page 258, and then add the external SSD MDisk to a storage pool, as
described in 7.2.1, “Adding MDisks to storage pools” on page 245. This action also changes
the storage pools to multitiered storage pools and enables Easy Tier on the pool and
the volumes.
10.4.2 Downloading Easy Tier I/O measurements
As described before, Easy Tier has now been enabled and Automatic Data Placement Mode
is active. Extents are automatically migrated to, or from, high performance disk tiers, and the ...