In our company we follow some ROT (rule of thumb) when installing.. *RHEL 3* and below (double the size) *RHEL 4*: 1) if RAM <= 2GB then swap = 2X RAM 2) if RAM > 2GB then e.g. 4GB (2GB x 2) + 2GB = 6GB (3x swap partition) e.g. 8GB (2GB x 2) + 6GB = 10GB (5x swap partition) *RHEL 5*: http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Installation_Guide/s2-diskpartrecommend-x86.html NOTE: LVM distributes its extents across disks... so don't put your SWAP on an LVM - Karl Arao karlarao.wordpress.com On Thu, May 14, 2009 at 3:12 AM, <TESTAJ3@xxxxxxxxxxxxxx> wrote: > > We did in our pilot and with 64G of ram we just went with 2G of swap, now > this is not production as we've not got that ironed out yet. > > joe > > _______________________________________ > Joe Testa, Oracle Certified Professional > (Work) 614-677-1668 > (Cell) 614-312-6715 > > Interested in helping out your marriage? > Ask me about "Weekend to Remember" > Dec 11-13, 2009 here in Columbus. > > > > From: kathy duret <katpopins21@xxxxxxxxx> To: oracle-l@xxxxxxxxxxxxx > Date: 05/13/2009 03:10 PM Subject: OEL 5.2 Oracle 10g database and swap Sent > by: oracle-l-bounce@xxxxxxxxxxxxx > ------------------------------ > > > > I had always used the rule of thumb for putting 1.5 swap to RAM on Linux > Servers > We are installing OEL 5.2, 10G 3 node RAC cluster with 64G of RAM. > > When I looked at the Metalink install doc 421038.1 it says: > > Between 1024 MB and 2048 MB 1.5 times the size of RAM Between 2049 MB and > 8192 MB Equal to the size of RAM More than 8192 MB 0.75 times the size of > RAM > > Has anyone installed this and what are you using. > > Have you also used hugepages? > > Thanks, > > Kathy > > > > >