Hardware requirements
Make sure that you meet the following requirements.
Hardware requirements for a cluster
|
Item
|
Description
|
|---|
VCS systems
|
From 1 to 32 Linux systems running the supported Linux operating system version.
See Supported operating systems
|
DVD drive
|
One drive in a system that can communicate to all the nodes in the cluster.
|
Disks
|
Typical VCS configurations require that shared disks support applications that migrate between systems in the cluster. The VCS I/O fencing feature requires that all disks used as data disks or as coordinator disks must support SCSI-3 Persistent Reservations (PR).
The coordinator disk does not store data, so configure the disk as the smallest possible LUN on a disk array to avoid wasting space.
See Setting up I/O fencing.
|
Disk space
|
See Disk space requirements and totals.
|
Network Interface Cards (NICs)
|
In addition to the built-in public NIC, VCS requires at least one more NIC per system. Symantec recommends two additional NICs.
|
Fibre Channel or SCSI host bus adapters
|
Typical VCS configuration requires at least one SCSI or Fibre Channel Host Bus Adapter per system for shared data disks.
|
RAM
|
Each VCS system requires at least 256 megabytes.
|
Required disk space
Confirm that your system has enough free disk space to install VCS. The following table shows the approximate disk space usage by directory for the Veritas Cluster Server RPMs.
Disk space requirements and totals
|
Packages
|
/
|
/opt
|
/usr
|
/var
|
Totals
|
|---|
Required
|
5 MB
|
143 MB
|
25 MB
|
169 MB
|
342 MB
|
Optional
|
3 MB
|
39 MB
|
1 MB
|
7 MB
|
50 MB
|
Required and optional total
|
8 MB
|
202 MB
|
26 MB
|
176 MB
|
412 MB
|
Note
If you do not have enough free space in /var, then use the installvcs command with tmppath option. Make sure that the specified tmppath file system has the required free space.
