> From: [email protected] [mailto:[email protected]] > On Behalf Of Andrew Hume > > i have two linux servers each of which has the same piece of SAN > attache dto it as a LUN. that is, svra:/dev/sdbd is the same volume > (or more exactly WWN) as svrb:/dev/sdaf. > > what i want to do is write something on svra to /dev/sdbd > and then be able to read it on svrb from /dev/sdaf. > in principle this should work, but on Linux the buffer > cache always inserts doubt. how do i reliably probe > /dev/sdaf for new content? there is no filesystem involved; > i am just talking about raw disk blocks.
I see other people have already answered this, regarding no filesystem. But you might also consider using a clustered filesystem. The whole point of such a thing is to do precisely this... With a filesystem. I believe the "standard" option built-into most linuxes nowadays would be gfs. (Not to be confused with google GFS.) _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
