> On Wednesday, 10/05/2005 at 10:03 EST, Rick Troth > <[EMAIL PROTECTED]> wrote: > > There will be little need for [E]CKD emulation once z/OS groks SCSI. > Does SCSI do PPRC- and FLASHCOPY-esque functions?
Well, it does if a) the vendors choose to expose the necessary APIs and b) the underlying hardware does. B is obviously the case, and A is the case on most vendors (for IBM, on AIX at least), so I think that's a question for the vendors. > I suspect that ECKD as provided by the SHARK-style boxes will > remain in vogue for some time to come. Probably, although there is a substantial cost/benefit argument to streamline the development of the storage boxen by having the OSes worry about weird emulation requirements and optimize on delivering blocks upstream as fast as possible. Some of the other storage vendors have done some interesting work in this area -- STK and EMC both have interesting solutions for that. -- db ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
