Years ago at a site SMS allowed a DS to extent across 60+ volumes. This was about the time we reallocated the MCDS’s to 4300 cylinders each. At 2AM we started the migration from hell but we got the DS off of DASD
Sent from my iPhone No one said I could types with one thumb > On Aug 5, 2024, at 17:20, Phil Smith III <[email protected]> wrote: > > Ahhhh. We don't have enough data to migrate so that hadn't occurred to me. > Of course! > > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf Of > Farley, Peter > Sent: Monday, August 5, 2024 4:33 PM > To: [email protected] > Subject: Re: How to "touch" mainframe files > > Yes it does – recalling large migrated files may not have enough free DASD to > get recalled, especially when there are lots of them (as OP also said I > believe). > > Hence the OP request to change last access time WITHOUT a recall (i.e. > without OPEN). Plus recalling really large datasets from ML2 can take quite > a lot of elapsed time. > > Peter > > From: IBM Mainframe Discussion List <[email protected]> On Behalf Of > Phil Smith III > Sent: Monday, August 5, 2024 4:12 PM > To: [email protected] > Subject: Re: How to "touch" mainframe files > > > Well there you go: > > > > //MASK EXEC PGM=IEFBR14 > > //STEPLIB DD DISP=SHR,DSN=some.dataset.name > > > > Looked before, DOLR was 8/1; repeated to be sure looking at DOLR didn't > change DOLR (which would be Bad, but); ran job; now DOLR is 8/5. > > > > Now, OP had something about "the files are large" but if anyone explained why > that mattered for this, I missed it. Does it? > > > > -----Original Message----- > > From: IBM Mainframe Discussion List > <[email protected]<mailto:[email protected]>> On Behalf Of > Seymour J Metz > > Sent: Monday, August 5, 2024 3:46 PM > > To: [email protected]<mailto:[email protected]> > > Subject: Re: How to "touch" mainframe files > > > > An authorized application can directly update the VTOC, but an unauthorized > application needs the allocation and OPEN. Neither the C/I nor the Initiator > will open the dataset unless it is, e.g., STEPLIB. > > > > -- > > > > > > > > > > ________________________________________ > > From: IBM Mainframe Discussion List > <[email protected]<mailto:[email protected]>> on behalf of > Itschak Mugzach > <[email protected]<mailto:[email protected]>> > > Sent: Monday, August 5, 2024 2:54 PM > > To: [email protected]<mailto:[email protected]> > > Subject: Re: How to "touch" mainframe files > > > > I thought the op requires no allocation, no IO. VTOC alteration is the only > way, I assume. > > > > ITschak > > > > *| **Itschak Mugzach | Director | SecuriTeam Software **|** IronSphere > > Platform* *|* *Information Security Continuous Monitoring for Z/OS, zLinux > and IBM I **| * > > > > *|* *Email**: [email protected]<mailto:[email protected]> > **|* *Mob**: +972 522 986404 **|* > > *Skype**: ItschakMugzach **|* *Web**: > https://urldefense.com/v3/__http://www.securiteam.co.il/__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!LaR1PZcX103EbarclO_HONndsbbmg0ZktTuwseGM5BQRX4jaldPz9UItnQKbTisVDR9dOAWIf-tnTWsbu4E$<https://urldefense.com/v3/__http:/www.securiteam.co.il/__;!!Ebr-cpPeAnfNniQ8HSAI-g_K5b7VKg!LaR1PZcX103EbarclO_HONndsbbmg0ZktTuwseGM5BQRX4jaldPz9UItnQKbTisVDR9dOAWIf-tnTWsbu4E$> > **|* > > > >> On Mon, Aug 5, 2024 at 9:02 PM Seymour J Metz >> <[email protected]<mailto:[email protected]>> wrote: >> >> >> >> No, you need an OPEN. > >> > >> -- > >> Shmuel (Seymour J.) Metz > >> > >> > >> > >> ________________________________________ > >> From: IBM Mainframe Discussion List >> <[email protected]<mailto:[email protected]>> on > >> behalf of Toby Seguin >> <[email protected]<mailto:0000028ef8c142d >> [email protected]>> > >> Sent: Monday, August 5, 2024 1:53 PM > >> To: [email protected]<mailto:[email protected]> > >> Subject: Re: How to "touch" mainframe files > >> > >> I used to run IEFBR14 with a disp of shr,keep,keep to touch a dataset. > >> It keeps it from going to archive without opening it. Not sure if it > >> updates the last used date or not. I'd assume it would. > >> > >> Andrew Huntington > >> Project Coordinator > >> SECURITY ARCHITECTURE > > -- > > This message and any attachments are intended only for the use of the > addressee and may contain information that is privileged and confidential. 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