Mark Perry wrote:
Better if this were answered by a z/VM and Linux developer, and hardware development, and....., but my 5-cents....
Your answer is correct. The Linux dasd block device driver will only mark a request as completed (and thus a journal transaction as "done") after the channel program has ended. On Shark, this means that the data has hit the non-volatile storage. Even if you pull the plug now, or any single component fails, everythings safely stored. With synchronous PPRC, this also means that the data is commited to the nonvolatile storage of both storage servers.
so long, Carsten ---------------------------------------------------------------------- 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
