No: Expanded Storage DIDN'T become pointless: Hiperspaces, most notably DB2 Hiperpools, enabled address spaces to get round the 31-Bit Virtual Storage limit. And MVPG / ADMF made this more economical.
Yes: Their economy in using cheaper expanded storage went away. But that wasn't all the value. Cheers, Martin Martin Packer, zChampion, Principal Systems Investigator, Worldwide Cloud & Systems Performance, IBM +44-7802-245-584 email: [email protected] Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker From: "Shmuel Metz (Seymour J.)" <[email protected]> To: [email protected] Date: 24/11/2015 15:19 Subject: Re: z/OS and hiperspaces Sent by: IBM Mainframe Discussion List <[email protected]> In <874b151289704e46a874bf2ae6fdd8d1310ab...@kl126r4b.cs.ad.klmcorp.net>, on 11/24/2015 at 02:30 PM, "Vernooij, CP (ITOPT1) - KLM" <[email protected]> said: >but I remember reading that expanded storage is now virtualized in >central storage. The whole point of expanded storage was that it was less expensive. Once IBM started carving out expanded memory from the same pool as regular memory, it became pointless, but by then IBM had code in place that provided an incentive to go along with the charade. -- Shmuel (Seymour J.) Metz, SysProg and JOAT ISO position; see <http://patriot.net/~shmuel/resume/brief.html> We don't care. We don't have to care, we're Congress. (S877: The Shut up and Eat Your spam act of 2003) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
