Re: Replacing Disk Drives With Higher Capacity

What loss of spool files?
SAVLIB LIB(X) DEV(TAP01) SPLFDTA(*ALL)

GO SAVE
20. Define save system and user data defaults
page down
Spooled file data . . . . . . *NONE *NONE, *ALL

Rob Berendt
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Group Dekko Services, LLC
Dept 01.073
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Kendallville, IN 46755
http://www.dekko.com





Bill <brobins3d@xxxxxxxxx>
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Re: Replacing Disk Drives With Higher Capacity






Jones, John (US) wrote:

The incremental removal/replacement works, but will take days to

complete and you wind up with data that won't necessarily be distributed
across the disks evenly. Performance will also likely be impacted during
the removal process.

I'd do it (and have done it) the old fashioned way:
- GO SAVE/21.
- GO SAVE/21 again just in case.
- Power off.
- Pull all old drives out, noting the slot where each drive came from.
- Put the replacement drives in.
- Power up, DST, start mirroring & add to ASP.
- GO RESTORE/21.

If something goes wrong you can power off & put the old drives back in

(since their slot was noted).

This has the most user downtime but you end up with the most optimal

data layout (best performance).

And result in a loss of all spooled files and all of the other niceties
that are lost in this scenario. Appreciate the thought though.

BTW, if your apps will work on a newer OS release, upgrading to a 550

with a dozen 141GB disks would probably pay for itself in reduced
maintenance and power/HVAC costs while running circles around the 730. And
take 8 or 9 Us in one rack v. about two full racks worth of space for the
730 + DASD tower.

And incur a new key charge from Infor for daring to improve my machine.
Same for Extol's EDI package. It's been a year or two, but the last
time I spec'd a machine, it was over 100 grand to get a machine -near-
the performance of the 730/1506. So, unless a 550 runs on the power of
a 60 watt bulb, it'd take quite some time to recoup the expenses you
speak of.

Bill
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