George,
I'm not really sure what the difference is, I'm guessing that the SSA
controller needs to support Fast-Write Cache, and I believe it's a chip on the
controller with memory(cache) for doing this. For example if I run the
following command:
# lscfg -vl ssa0
DEVICE LOCATION DESCRIPTION
ssa0 10-68 IBM SSA 160 SerialRAID Adapter
(14109100)
Part Number................. 27H1204
FRU Number.................. 34L5388
Serial Number...............S0157201
EC Level.................... E28728
Manufacturer................IBM053
ROS Level and ID............8300 0000
Loadable Microcode Level....05
Device Driver Level.........00
Displayable Message.........SSA-ADAPTER
Device Specific.(Z0)........SDRAM=128
Device Specific.(Z1)........CACHE=32
Device Specific.(Z2)........UID=000008005AEBED5A
Device Specific.(YL)........P2-I3/Q1
You see it's a model 160 adapter, and in the Z0 and Z1 fields it has the
amount of SDRAM and CACHE on board the controller. Check yours out and see
what it has.
-Matt
>Matt, I have an even older 7133 D40 attached to a server and rather than have
>Fast Write enabled (slightly different syntax between machines), it has
>FL_UNAVAIL (fast load unavailable). Any idea what this means??? Thanks-
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