Don't agree. With the TS7700 and its 512 tape units, the main factor to limit tape (tapeunit) useage has gone. It is fast and suitable for large datasets, not only backups etc. but also for DB2 unload files for a reorg process.
And when we stil ran on ESS Dasd with 2Gb connections and the TS7700 on 4Gb connections, I sold tape to users of large datasets with the option: Tape is twice as fast as Dasd. Kees. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of R.S. Sent: Tuesday, September 03, 2013 08:05 To: [email protected] Subject: Re: UNIT=AFF was Re: UNIT=SEP still alive (?) W dniu 2013-09-02 19:54, Clark Morris pisze: > On 1 Sep 2013 07:03:23 -0700, in bit.listserv.ibm-main you wrote: > >> On 9/1/2013 6:47 AM, Tom Russell wrote: >>> In the case of multiple steps each allocating one file on the same >>> tape, and no AFF parameter used, there was (is?) a significant >>> difference between JES2 and JES3. > For allocating tape drives within a step (and UNIT=AFF is only within > a step) UNIT=AFF is still needed to allocate SORTIN and SORTOUT in > SORT operations to the same drive in both JES2 and JES3 (or for any > other non-concurrent allocations where it is possible to share the > drive. IMHO it's bad idea to use tapes for such operations. Tapes nowadays are for backups, dumps, ML2, etc. but not "direct" application use. My €0.02 -- Radoslaw Skorupka Lodz, Poland -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorised to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 00, fax +48 (22) 829 00 33, www.brebank.pl, e-mail: [email protected] Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 0000025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2013 r. kapita zakadowy BRE Banku SA (w caoci wpacony) wynosi 168.555.904 zotych. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] 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 [email protected] with the message: INFO IBM-MAIN
