Re: Sharing disks across machines

Neil Truby wrote: > "Andy Kent" <andykent.bristol1095@virgin.net> wrote: >>"Neil Truby" <neil.truby@ardenta.com> wrote: > >>>What's the requirement? >>>To have an engine on each server looking at both sets of disks >>>simultaneously? >> >>I'm not sure, I think so, I'm seriously struggling to find anything >>that would put the balance sheet from doing so into credit. >> >>In fact, ideally I'd like to be able to go to the meeting and tell >>them categorically it won't work, which Eric's response seems to >>suggest it won't ... > > > Well, he's right of course, it won't work. You can't have two processes > that know nothing about one another writing to the same set of disks. You *can* have two processes doing the writing to the same disk even if they know nothing about each other; Unix is good at that. :-) It is, however, a thoroughly *BAD* idea to do this with any disk file that you value - such as the contents of your DBMS. :-( -=-=-=-=-=-=-=-=-=-=-=-=-=- PS: ( Just in case the smiley's aren't clear: HE IS RIGHT - IT IS A BAD IDEA TO TRY IT! ) -- Jonathan Leffler #include <disclaimer.h> Email: jleffler@earthlink.net, jleffler@us.ibm.com Guardian of DBD::Informix v2003.04 -- http://dbi.perl.org/