UNSOLVED
FAST_VP User_Approve?
Hello-
Below are the results of symfast list -control_parms and symfast list -state.
I'm trying to determine if I set FAST VP Data Movement Mode from NONE to Automatic (only options), if it will still do a user approval mode like old "FAST" did, or will it start just moving data per policy setup? I kinda want to see where it determines things are going to go before just setting the control_parms to Auto..
Can someone clarify this please?
Thank you,
Brian
C:\Users\boydbri1>symfast -sid XX list -control_parms
Symmetrix ID: XX
Optimizer and FAST Control Parameters:
Optimizer and FAST Control Parameters:
Data Movement Mode : User_Approve
Max Simultaneous Device Moves : 8
Max Device Moves Per Day : 200
Optimizer, FAST and FAST VP Control Parameters:
Min Initial Workload Period(hrs) : 8
Workload Analysis Period(hrs) : 168
FAST Control Parameters:
Swap Not Visible Devices : Disabled
Allow Only Swap : Disabled
FAST VP Control Parameters:
FAST VP Data Movement Mode : NONE
FAST VP Data Relocation Rate : 5
Thin Pool Reserved Capacity(%) : 10
C:\Users\boydbri1>symfast -sid XX list -state
Symmetrix ID: XX
FAST State : Enabled
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 : Idle
FAST VP Perf Time Window : Open
FAST VP Move Time Window : Closed
375
0
Posted August 4th, 2011 11:00
If it told you it was promoting extent x,y, and z, and demoting extents a,b and c would you have any idea what data that correlated to?
100/100/100 will allow each tier to use as much as it needs. You can watch the movement with SPA.
375
0
Posted August 4th, 2011 11:00
I guess that is kinda scary to me then. Although I trust the algorithm, I was under the impression that I could see what it is going to do before it actually does it
Right now the policy is set to 100/100/100 for EFD/FC/SATA for 'tuning purposes' and I suppose we can dial things tighter as we see more results.
Thanks,
Brian
375
0
Posted August 4th, 2011 12:00
Right, I guess by using the size extents fast uses things are going to be much more efficient...even with some databases, etc.
My thoughts are that any 'miscalculation error' would probably be abosorbed by Cache anyway. But I'm sure EMC has thought of all of this. I'm probably over thinking it and I should just turn it on and let the good times roll.
375
0
Posted September 7th, 2011 18:00
what microcode are you at now?
Quincy561
1281 Posts
375
1
Posted August 4th, 2011 11:00
There is no user approve mode for FAST VP. It is either on or off.