Thanks all for the replies regards LSC On 1/20/06, Hemant K Chitale <hkchital@xxxxxxxxxxxxxx> wrote: > > > Like those (a) Multiple ORACLE_HOMEs ?? (b) Seperate Unix IDs for each > install ?? > discussions. > > The first "advantage" of a local install is that > file-corruption/file-system corruption does not render both nodes > unusable. > The second "advantage" is that you can patch one install (with the DB > instance running from the second install). > Oh and another one (which I've actually seen) : when a consultant/vendor > is > asked to install / configure oracle software > he can actually double the number of billable hours. > > Personally, I prefer installing on the shared storage. > 1. I have to patch once only, not twice and not switch the database > instance twice. > 2. I do not have to worrry about keeping files > (listener.ora/tnsnames.ora/etc) "in sync" > > On TruCluster 9iRAC with a single install is a breeze (don't have to worry > about rcp !). > On SunCluster, too, I have installations on shared storage -- failover is > that much easier. > The same on AIX (however, the DB2 guys on AIX much preferred local > installs and some months > later found that there were some differences between the local installs -- > files missing from one node !). > > When installing in a Filer (eg NetApp filer) environment, too, I would > prefer to have installed on the > shared storage (although my vendor convinced me to install on local disks > that time. I increased it > from one oracle_home to 5 oracle_homes and, instead of installing > oracle 5 > times, I ended up > installing oracle 10 times, configuring the listener.ora/tnsnames.ora 10 > time etc). > > Hemant > > At 08:22 AM Friday, Li-Shan Cheng wrote: > >Hi again > > > >As I have mentioned in my previous post I have installed a database in a > >HA environment using Service Guard. In the past I have always installed > >the software and created the database in the shared storage. My customer > >has a policy however which states that software installations in cluster > >environment must be local in each node. I cant tell him what > >advantage/disadvantge each situation can have. The only ones I can think > >of is using a single software it´s faster to patch but with seperate > >sofwtare we might have a better availability, while patching one node the > >other can service requests. Any other suggestions? Where do you guys > >install the software to? The shared storage or the local? > > > >HP-UX > > > > > >Cheers > > > > > >LSC > > > > > Hemant K Chitale > http://web.singnet.com.sg/~hkchital > > >