IBM Mainframe Discussion List <[email protected]> wrote on 10/02/2007 08:34:26 AM:
> al chu wrote: > > Does anyone know what KEY(??) means in the output of LIST command. > > > > I have the following output > > > > LIST 8BD000. ASID(X'0288') LENGTH(X'30') AREA > > ASID(X'0288') ADDRESS(8BD000.) KEY(??) > > 008BD000 LENGTH(X'30')==>All bytes contain X'00' > > KEY(??) means that the dump records contained X'FF' in the slot where a > storage key would have normally been placed. It wasn't captured at the > time of the dump. You may be able to use RSM or VSM reports to get the > missing information, assuming that their key data areas were included in > the dump. If you are running on z/OS 1.7 or higher, and this is an SVC dump, then this is probably storage that was either in a first reference state (i.e. unbacked, and would be backed by a page of zeros when eventually referenced), or backed but unchanged with no copy on AUX (so we know the data is all zeros). In these cases, SDUMP avoids dumping the page (to save time and space), but creates some summary information which allows IPCS to tell you that the data is all zeros. Prior to z/OS 1.7, IPCS would have told you that the storage is unavailable. SDUMP does not know the key of the page (or the key that the page would have when it eventaully gets backed) in these cases - the RSM interface used by SDUMP does not provide that information), so SDUMP cannot supply the key to IPCS. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- 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
