>While RLS catalog sharing require more effort to establish, it wasn't >introduced just for fun. It seems customers needed some enhancement over >ECS.
IIRC from the course, it was for performance reasons. RSL provides better performance for heavily used catalogs. Met vriendelijke groet, Kees Vernooij KLM Information Services z/OS Systems Tel +31 6 10 14 58 78 -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of R.S. Sent: 24 April 2020 11:20 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Catalogs in parallel sysplex ECS vs RLS W dniu 23.04.2020 o 16:29, Peter Vander Woude pisze: > Ok, building parallel sysplex. For the catalogs I am planning on using ECS > for the shared catalogs (which is all of them). > > What is the recommended method for handling the catalogs in a parallel > sysplex, ECS or VSAM RLS? What is recommended method? It depends. :-) WHAT DO YOU NEED? "Legacy" catalog sharing is worse than ECS. ECS is relatively easy to implement. However many years later IBM introduced catalog sharing with RLS. It is more effective for extensive sharing of given BCS, however Master Catalog cannot be shared that way. While RLS catalog sharing require more effort to establish, it wasn't introduced just for fun. It seems customers needed some enhancement over ECS. Again, YMMV, we don't know your workload, etc. If you are starting with that, think about VLF (it's not related to sharing), then ECS. However if you are using RLS, you have the infrastructure up and ready, so RLS catalog sharing seem to be low hanging fruit. Last, but not least: sharing outside sysplex is completely different animal, and you should avoid it as possible. In that case absolutely don't try to use ECS or RLS. -- Radoslaw Skorupka Lodz, Poland ====================================================================== Jeśli nie jesteś adresatem tej wiadomości: - powiadom nas o tym w mailu zwrotnym (dziękujemy!), - usuń trwale tę wiadomość (i wszystkie kopie, które wydrukowałeś lub zapisałeś na dysku). Wiadomość ta może zawierać chronione prawem informacje, które może wykorzystać tylko adresat.Przypominamy, że każdy, kto rozpowszechnia (kopiuje, rozprowadza) tę wiadomość lub podejmuje podobne działania, narusza prawo i może podlegać karze. mBank S.A. z siedzibą w Warszawie, ul. Senatorska 18, 00-950 Warszawa,www.mBank.pl, e-mail: kont...@mbank.pl. Sąd Rejonowy dla m. st. Warszawy XII Wydział Gospodarczy Krajowego Rejestru Sądowego, KRS 0000025237, NIP: 526-021-50-88. Kapitał zakładowy (opłacony w całości) według stanu na 01.01.2020 r. wynosi 169.401.468 złotych. If you are not the addressee of this message: - let us know by replying to this e-mail (thank you!), - delete this message permanently (including all the copies which you have printed out or saved). This message may contain legally protected information, which may be used exclusively by the addressee.Please be reminded that anyone who disseminates (copies, distributes) this message or takes any similar action, violates the law and may be penalised. mBank S.A. with its registered office in Warsaw, ul. Senatorska 18, 00-950 Warszawa,www.mBank.pl, e-mail: kont...@mbank.pl. District Court for the Capital City of Warsaw, 12th Commercial Division of the National Court Register, KRS 0000025237, NIP: 526-021-50-88. Fully paid-up share capital amounting to PLN 169.401.468 as at 1 January 2020. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ******************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
