Sean, More cause for concern then .... we're currently running a hardware load balancer in front of 2 Remedy 7/Solaris boxes each running with (if I remember right) either 8 or 16 processors and 16 gig of RAM. The backend database is running something like 16 processors and 32gig of RAM. And we're currently on something like 70% DB utilisation. I could be slightly out on the specs, but its about right. Regards
Dave -----Original Message----- From: Action Request System discussion list(ARSList) [mailto:[EMAIL PROTECTED] Behalf Of Garrison, Sean (Norcross) Sent: 18 November 2008 20:22 To: [email protected] Subject: Re: Load Balanced Remedy -> Load Balanced Oracle environments? ** Word of Caution on an Oracle RAC ... make sure you allocate a lot of memory to the db. Here is what remedy recommends: Small DB: CPU 2 Memory 4 Gig Concurrent Users 1-400 sga_target 1-2 gigs pga_aggregate-target 1 gig Medium DB: CPU 4 Memory 8 Gig Concurrent Users 401-800 sga_target 3-4 gigs pga_aggregate-target 2 gig Large DB: CPU 8 Memory 16 Gig Concurrent Users 800 or more sga_target 6-8 gigs pga_aggregate-target 2-4 gig (page 18 on the Performance Tuning for Business Service Management Document) One problem we ran into with RAC: 4 servers x 1 gig of memory is not equal to 1 server X 4 gigs of memory. The more memory you allocate to the DB the better your performance. So if your remedy db is shared among other databases on the same server you may not be able to allocate a whole lot of memory to the db. Something to keep in mind. Thanks, Sean This e-mail has been scanned for viruses by the Cable & Wireless e-mail security system - powered by MessageLabs. For more information on a proactive managed e-mail security service, visit http://www.cw.com/uk/emailprotection/ The information contained in this e-mail is confidential and may also be subject to legal privilege. It is intended only for the recipient(s) named above. If you are not named above as a recipient, you must not read, copy, disclose, forward or otherwise use the information contained in this email. If you have received this e-mail in error, please notify the sender (whose contact details are above) immediately by reply e-mail and delete the message and any attachments without retaining any copies. Cable and Wireless plc Registered in England and Wales.Company Number 238525 Registered office: 3rd Floor, 26 Red Lion Square, London WC1R 4HQ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org Platinum Sponsor: www.rmsportal.com ARSlist: "Where the Answers Are"
