VTS disk may be cheaper than online disk, but the the total cost of the VSM box with DASD may not be cheaper than what we need to go to TMM, especially since that DASD is "free" - it's capacity we already own but don't use. I appreciate the point, however, and we'll try to see if we can figure out which is cheaper for us.
Tim Hare Senior Systems Programmer Florida Department of Transportation (850) 414-4209 IBM Mainframe Discussion List <IBM-MAIN@BAMA.UA.EDU> wrote on 10/31/2006 > - Why do you send your migrations to 9804? We run CA-DISK and I don't > know ABR, but you can: > 1. Migrate to disk. This will roughly decrease the space, since idle > space is dropped and you can also compress the data if you can spend the > CPU costs. This delivers fast recall times, so you can possibly migrate > more aggressively. > 2. Migrate to VTS and set up rules to keep the data in the cache. This > will also deliver fast recall times and at the same time, much faster > than from 9840 and you can possibly migrate more aggressively. > > - VTS storage is cheaper than online Dasd, so from the cost point, VTS > is preferred about TMM. > > - If your recalltimes from VTS, are a problem because they cannot be > done from the cache, you might spend your money on enlarging the cache > in stead of the TMM buffer. > > - DR is possible with a peer-to-peer VTS (VSM) configuration if you can > put them far enough apart from each other and can be handled by the VTS. > What is your DR procedure now, with the backups and migrations directly > to 9840? > > - Have a look at the new TS7700 from IBM. This has enhanced the Virtual > Tape concept considerably, both for normal operation and for DR. > > Kees. > > > ********************************************************************** > 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: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- 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
