> -----Original Message----- > From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list- > bounces@xxxxxxxxxx] On Behalf Of Ben Russo > Sent: Tuesday, April 12, 2005 11:10 AM > To: redhat-list@xxxxxxxxxx > Subject: Re: rhe3 update4 + Oracle 10g > > Steiner, Randy wrote: > > I have 6 gigs of ram on my blades, but I can't seem to create an oracle > > database with an sga larger than 1 gig. > > > > I have increased the shmmax to 4g, but when I increase the sga settings, > > I get an Oracle message ORA-27123 unable to attach to shared memory > > segment. I can't find good article on Linux memory management. At what SGA sizes do you see these issues ? If you are seeing them at 1.7G+ then that's perfectly normal, at that point you will have to deal with VLM configuration. The links to puschitz.com have some docs on how to increase SGA beyond 1.7GB via remapping the base mem address of oracle. The instructions are for 9i but afaik they also apply to 10g. If you require SGA > 2.7GB you will most likely have to employ a ramfs solution for your SGA (ramfs being the non pageable version of memory filesystems). I have not had a chance to play with this yet so I cant provide any detail advise on it. -Tobias > > > > Does anyone have any thoughts on this? > > http://www.puschitz.com/OracleOnLinux.shtml > > http://www.puschitz.com/TuningLinuxForOracle.shtml#SettingSharedMemory > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
