On Thursday, 07/27/2006 at 09:57 ZE2, Carsten Otte <[EMAIL PROTECTED]> wrote: > I am sorry, but I have to disagree with Alan's statement. They _are_ > currently dangerous to use with Linux volumes that are being accessed > _because_ unlike dm-snapshot the filesystem is not frozen in Linux > (lockfs) and thus the data on disk is inconsitent due to caching. > DM-snapshot does the desired trick, flashcopy does not. > > I feel sorry for causing confusion by creating the expectation that > flashcopy can be used to snapshot linux volumes before.
I had previously said that you shouldn't use Flashcopy on active volumes. I meant that Flashcopy is just a mechanism for making a copy of the media. If you don't worry about the mechanics underneath and just think of it as a super-fast copy function, then all will be fine. High-speed copy technology does not absolve the system manager from properly preparing the system for backup. Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- 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
