Hardware / Software Requirement for RAC

Hardware Req. for RAC Setup: Requirement for RHEL 5.3

1.       Minimum P-IV processor

2.       Minimum 1.5 GB RAM for cluster on each node

3.       2 NIC Cards (1^st – private network, 2^nd – Public network)

4.       Shared Storage (SAN/NAS/ISCSI)

5.       Secondary Storage (Internal HDD)

Mount Point	Min Requirement	Recommended
/	1 GB	2-3 GB
/var	300 MB	1 GB
/tmp	1 GB	2-3 GB
/boot	100 MB	512 MB
/usr	3 GB	5-6 GB
/swap	Double the RAM	Double the RAM
/grid (To store Grid infrastructure)	2-4 GB	5-6 GB
/oraeng (To store RDBMS s/w)	4 GB	6-8 GB
/opt	-	-
/disk1 (optional)	-	-
/disk2(optional)	-	-
/disk3(optional)	-	-

Software Requirements:

1.       Same version & bit architecture (32-bit/64-bit) of o/s on all the nodes

a.        64-bit à 32 bit/64 bit

b.       32-bit à32 bit

2.       Same version of Clusterware s/w on all the nodes

3.       Same or lower version of RDBMS software on all the nodes