Hi Oliver, Assuming you know the risks involved with what you're trying to do, then the missing piece is using what is called a shared disk file system. You already mentioned OCFS2, another option would be GFS (Global File System). I'm not sure if btrfs and ZFS are shared disk file systems, but it's worth a check.
The reason "what you are doing is very dangerous" is if you're not using a shared disk file system, you basically end up with lost data at best, but more probably a corrupt and useless file system at the end. "Normal" file systems are used to having exclusive write access to their block device. Good luck, and have fun. Cheers! -- Federico Sevilla III, CISSP, CSM, LPIC-2 Chief Executive Officer F S 3 Consulting Inc. http://www.fs3.ph On Tue, 2010-12-07 at 11:21 +0800, Linux Cook wrote: > okay some guys told me i should be using ocfs2? would this really > help? > > On Tue, Dec 7, 2010 at 9:50 AM, Jimmy Lim <[email protected]> wrote: > Hi Oliver, > > > What you are doing is very dangerous! You can present the > LUNs on the 2 servers, but only *one* can only write to it. > > > If you want to achieve redundancy on your server, I believe it > is better to get the HP Service Guard (but this is not a free > software). > > > http://docs.hp.com/en/ha.html > > > HTH > > > Jimmy > > > On Tue, Dec 7, 2010 at 1:34 AM, Linux Cook > <[email protected]> wrote: > > > Hi pluggers, > > I've just configured multipathing on my debian boxes > (Server A and Server B) using HP StorageWorks with > Dual FCs on each server and can now mount the path > alias I defined on my multipath configuration. But > everytime I write a data on Server A, the data are not > reflecting on Server B. > > Any help? > > Oliver
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