Completely unsafe. Linux probably will have data in memory that has not yet been committed to disk, so your snapshot probably will not be complete or consistent. You need an agent inside the Linux guest that is conscious of where data actually is at the moment to get a clean and consistent backup.
________________________________ From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Hicks, Bennie Sent: Wednesday, November 19, 2008 10:31 AM To: IBMVM@LISTSERV.UARK.EDU Subject: #CP STOP vs. Linux shutdown for disk snapshots How safe (or unsafe) would use of the #CP STOP of a running linux guest be in order to make quick disk snapshots (PPRC Suspend in our case) for a full volume backup versus shutting down the linux OS? Are there any impending gotcha's with I/O status or something else that needs to be discussed? Please elaborate, as in prep for full volume backup automation, it seems this method might be quicker, just ignorant to the implications of it's use. Thanks, Bennie
