Thanks to all that replied. I'll only reply to this answer to avoid cluttering up the list. I suspected that I probably couldn't add any storage to this Lpar without at least an IPL. Both of LP01 and LP02 have 2 GB defined for real storage, and 1GB in reserve. I believe the 1GB in reserve gets varied online just after the IPL, as both systems show 3072 MB in storage after a D M=STOR command.
I did find out that HSA is 128M, and with LP03 & LP04 being at 512M, I should have 896M available to add to LP02, which is our DB2 Lpar. I'm not sure if I can add that amount or not - I'll have to figure out what the increment size is. I'm sure we could easily remove 1 GB from LP01. It runs normally around 5-10% busy, unless I'm running SMP stuff or someone else is running batch. It also has zero paging, and no DB2. The transaction volumes are falling on that Lpar, and it will be phased out in the near future. Thanks for the quick replies. Eric ---- Jim Mulder <[EMAIL PROTECTED]> wrote: > IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> wrote on 11/25/2008 > 12:11:58 PM: > > > Can real storage be added to an Lpar on a z/800 without shutting > > down the Lpar and re-IPLing? We have 4 Lpars defined, only two of > > them running now. Both Lpars have 3G of memory. I think the 2 > > Lpars that aren't running have .5G each. I know we have a little > > less than 1G that is free and unassigned, so I'm wondering if I can > > add that to our production DB2 lpar without having to IPL? > > You can add storage to a running MVS system, but only > if the storage was defined to the LPAR zone as Reserved when > MVS was IPLed. MVS needs to know at IPL time the total > amount of storage that might ever be online, so that it can > build an appropriately sized Page Frame Table. > > If D M=STOR does not show you any offline storage > amounts, then you cannot bring more storage online without > IPLing. > > Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY -- Eric Bielefeld Systems Programmer Washington University St Louis, Missouri 314-935-3418 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
