David, That's true, but the capability you get with FlashCopy on IBM and HDS is very different to what you would see with FlashCopy on IBM and Shadowimage on HDS. If you were a dual vendor/FlashCopy only shop you may use FDRINSTANT differently than you do now. Hence my argument that interoperability can be important to some shops. It's not a level playing field, and it is certainly an area where the storage vendors are rarely at the same level of support. HDS customers that waited for FCV2 support were probably had their patience tested as much as EMC customers that waited for GDPS/PPRC support.
I also believe it is worth looking beyond the generic capabilities that software like FDRINSTANT does a very good job of providing. For example FDRINSTANT has no support for HDS AT-TIME split because IBM and EMC do not have that capability, but AT-TIME may provide Point-In-Time capabilities that some of your applications can leverage. I'm not saying that your site cannot do without AT-TIME, it is just not an option for you while the esoteric capabilities of your storage are masked by a generic software layer. I believe that it still pays to look at the unique capabilities of your hardware and evaluate the pros and cons of unique capabilities, as well as using software like FDRINSTANT. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of > David Andrews > Sent: Tuesday, August 03, 2010 11:14 AM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] share mainframe disk experience > > On Tue, 2010-08-03 at 13:26 -0400, Scott Rowe wrote: > > Any vendor who could not do FlashCopy compatibly would lose out. > > That's why we license FDR Instant - which knows about Snapshot / > Flashcopy / Timefinder. Makes me less married to the underlying tech. > > -- > David Andrews > A. Duda and Sons, Inc. > david.andr...@duda.com > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
