RE: How much space will a reorg add?

Bill,

It depends if you're doing a dedicated REOGR or REOGR While Active.
Dedicated reorg is much faster, takes no additional disk space, but no one can be using the file.
REORG while Active, will be longer, takes additional disk space because the file needs to be journaled, journal receiver will grow, but users may continue to use the file.

If I were in your shoes,
1) find and delete large undeded, spoolfiles,
STRSQL,
SELECT *
FROM QSYS2.OUTPUT_QUEUE_ENTRIES ORDER BY SIZE DESC
FETCH FIRST 100 ROWS ONLY

2) Review and delete any unneeded journal receivers on the system,
WRKOBJ OBJ(*ALL/*ALL) OBJTYPE(*JRNRCV)

3) Review and delete unneeded *savf
STRPDM, 2. Work with objects,
Library . . . . . . . . . . QGPL *CURLIB, name

Object:
Name . . . . . . . . . . . *ALL *ALL, name, *generic*
Type . . . . . . . . . . . *FILE *ALL, *type
Attribute . . . . . . . . *SAVF *ALL, attribute, *generic*,
*BLANK
Check other libraries.

4) Check IFS for large, unneeded STMF, and/or any unneeded image catalogs.
WRKIMGCLG IMGCLG(*ALL) TYPE(*ALL)

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of Howie, Bill
Sent: Wednesday, July 10, 2019 4:51 PM
To: midrange-l@xxxxxxxxxxxxxxxxxx
Subject: How much space will a reorg add?

Hello all,

I'm working on doing a reorg of the files from our ERP package. It's been a very long time since a reorg was done on these files. What we've done is copy the data library in question over to our test system and we're going to do a test run there and see how long it takes. One problem.....our test system has about half the storage that our production one does and copying this library over has put us at 97% of disk space usage on our test system. Our ERP package does allow for us to reorg the files individually. We hope to get about 90GB back on a system that has 660GB and is 97% full. We have two schools of thought going on. Our thought in-house is that we can individually reorg some of the smaller files, and that should buy us enough space to be able to reorg the bigger ones. Our vendor that hosts our system for us is telling us to clear space ahead of time because of the amount of space that the reorg will add.

Anyone have any experience with how much space a reorg will typically add? I know that being at 97% is crazy. I'm just trying to figure out if we have enough space to slowly but surely reduce it down by reorg-ing individual files or if we should really look at clearing other space first. As always, all your suggestions are greatly appreciated!

Bill

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