Re: SSD Best practices

[Sue Baker <smbaker@xxxxxxxxxx>]

On 2/14/2013 6:50 AM, rob@xxxxxxxxx wrote:
> I've found you have to be careful with doing the TRCASPBAL and the
> STRASPBAL.  Let's say management says "I don't care what the system says
> is hot.  I want this particular process to run faster.  You come up with
> the solution and I'll write the check."  So you say we can move the files
> in that process to SSD's by using CHGPF... UNIT(*SSD).  Then you run
> STRASPBAL TYPE(*MP).

Note to others reading this string: the STRASPBAL TYPE(*MP) is a 7.1 and 
later command.

> If you go and run the TRCASPBAL and the STRASPBAL TYPE(*USAGE) that file
> may now be moved to slower disks.  And you can go ahead and do a DSPFD and
> see that it prefers *SSD but that command won't tell you if it's really
> there.  Apparently that's reserved for wizards of STRSST and
> Display/Alter/Dump.

There is a view in QSYS2 that will show you the information about 
whether a file is tagged for SSD and how much of it is actually on SSD. 
 (I can't recall which one at the moment, but I think it's one of 
*partition* ones.)  So you don't have to use Display/Alter/Dump or the 
DIRDUMP PTF.