Re: more DASD!!!

D.BALE@handleman.com wrote:
> 
> We have a 9404 - 400 (feature #2133) that we need to add more DASD to.  It
> currently has 8 mirrored 4GB drives (type 6607) for an effective 16GB of disk
> space.  The AS/400 System Handbook says that the maximum amount of DASD we can
> put on this box is 50.3GB.  Questions:
> 
> Is the maximum counting only the "usable" mirrored DASD or the total DASD
> regardless of mirroring?  In other words, if I mirror the maximum amount of
> DASD on this box, will I be able to put 100GB on to get an effective 50GB of
> usable DASD?  Or is 50GB the total maximum, limiting a mirrored system to 25GB
> in this case?

50GB is the max(unless there is a letter that extended that). At the
time of
the 9402-400, the larger drives weren't available. I have since ordered
the
larger 8gb drives with no problem. This normally requires a special PTF
for
the box but that's no big deal. You might want to root around in the 
annoucement letters to see if the newer drives were allowed at a later
date.
I'm not sure the 17gb's were ever allowed, but that's hard to know for 
sure.

The total DASD space available is(was) 50gb, so if you choose to mirror
the
entire machine, you end up with 25gb(there abouts)


> 
> A concern was raised that whatever additional DASD we buy today for this old
> box might not be migratable to any new iSeries system we acquire in the
> future.  Is that a real concern?  I haven't heard anything regarding this
> issue.  It may well be that we'll replace this box sometime this year, and it
> would be a consideration whether or not the DASD purchase will be "lost" when
> we upgrade.

It's only a concern if you attempt a hardware upgrade, and I'm not sure
there is a valid upgrade still left for the 400 to anything.... They
still
might call it an upgrade, but it would be a forklift upgrade.....
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