On Tue, 13 Sep 2005 15:27:21 -0500, Mark Steely <[EMAIL PROTECTED]> wrote:
>We are z/OS V1R4. We are trying to justify the purchase of FLASHCOPY. >What are the benefits of FLASHCOPY? How much time has FLASHCOPY saved ? I'm using SnapShot instead of Flashcopy, but the idea is the same. 1. We use SS data copies to create test copies of data from production. This is esp useful for copying IMS databases. We can take the prod databases offline for a few minutes and create hard copies in test. The alternative is extensive unload/reload procedures which can take 1/2 a day or more. (Warning - this technique does not work for DB2 unless you copy the entire DB2 subsys, catalogs and all.) 2. We use SS to implement Virtual Concurrent Copy (VCC). Useful for backing up things like RMM control dataset. The RMM CDS is now reserved for only a few seconds as opposed to a couple of minutes without VCC. 3. Can clone a full volume, like a sysres, in a few seconds. 4. We test our DR procedures in-house as well as at the DR site. For in- house testing, we SS 120 volumes to the DR LPAR instead of restoring to tape. We can "restore" the system for testing in about 5 minutes as opposed to the hours it would take to read all the tapes. -Rob ---------------------------------------------------------------------- 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
