System requirements


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Make sure that you have the correct equipment to install Storage Foundation.

Item	Description
Storage Foundation systems	Two to eight systems with two or more CPUs at 2GHz or higher.
RAM	Each Storage Foundation system requires 2 GB or more of physical memory.
Network links	Two or more private links and one public link. Links must be 100BaseT or Gigabit Ethernet directly linking each node to the other node to form a private network that handles direct inter-system communication. Symantec recommends Gigabit Ethernet using enterprise-class switches for the private links.
DVD drive	One drive that is accessible to all nodes in the cluster.
Fibre channel or SCSI host bus adapters	Storage Foundation requires at least one built-in SCSI adapter per system to access the operating system disks, and at least one additional SCSI or Fibre Channel Host Bus Adapter per system for shared data disks.
Disks	Typical Storage Foundation configurations require that shared disks support applications that migrate between systems in the cluster. The Storage Foundation I/O fencing feature requires that all disks used as data disks or as coordinator disks must support SCSI-3 Persistent Reservations (PR). Note The coordinator disk does not store data, so configure the disk as the smallest possible LUN on a disk array to avoid wasting space. Checking shared disks for SCSI-3 support
Disk space	SF Oracle RAC space requirement: total: 2.6 G `/opt`: 1.4 G `/usr`: 200 KB `/tmp`: 512 MB `/var`: 32 MB `/var/tmp`: 700 MB
Swap space	Two times the main memory.

To check the current RAM installed on a system, enter:
# /usr/sbin/lsattr -E -l sys0 -a realmem

If the current RAM is insufficient, you must install more memory before proceeding with the installation.
To check the amount of swap space configured for a system, enter:
# /usr/sbin/lsps -a

Refer to the operating system documentation for information about configuring swap space. Oracle recommends 1 GB of swap space. See the Oracle Database Administrator's Reference for UNIX for more information.
1. To check for the current space available in the /tmp directory, enter:
  # df -k /tmp
  
  If the space remaining in /tmp is insufficient, complete one of the following operations:
2. Delete unnecessary files in /tmp, and recheck the available space.
3. Extend the file system that contains the /tmp directory.
4. Set the TEMP and TMPDIR environment variables when setting the Oracle user's environment.