Are these two are referring to two different things, or FAST VP would use Optimizer to determine HOT volumes? These two seems doing the similar thing.
On VMAX here, Optimizer is diabled (shown by running symoptmz query), however, FAST VP is being used (shown enabled by symfast -sid 123 list -state and symfast -sid 123 list -fp).
Thanks for your advice!
Solved! Go to Solution.
# symfast -sid 123 list -state
Symmetrix ID: 000192605065
FAST State : Disabled
Reason(s) : N/A
FAST Current Activities : Idle
FAST Perf Time Window : Open
FAST Move Time Window : Closed
FAST VP State : Enabled
Reason(s) : N/A
FAST VP Current Activities : RunningPlan
FAST VP Perf Time Window : Open
FAST VP Move Time Window : Open
EMC® Solutions Enabler Symmetrix Array Controls CLI Version 7.6
this is a pretty recent document, on page 288, they still call it Optimizer. Is this Optimizer really the same as FAST/FAST-DP?
FAST and Fully Automated Storage Tiering with Virtual Pools (FAST VP)
EMC Symmetrix FAST (FAST DP) and FAST VP automate the identification of data
volumes for the purposes of relocating application data across different
performance/capacity tiers within an array. FAST operates on standard Symmetrix
devices. Data movements executed between tiers are performed at the full volume
level. FAST VP operates on virtual devices. As such, data movement execution can be
performed at the sub-LUN level, and a single thin device may have extents allocated
across multiple thin pools within the array. Because FAST DP and FAST VP support
different device types – standard and virtual respectively – they both can operate
simultaneously within a single array.3 Aside from some shared configuration
parameters, the management and operation of each are separate.