Linux: Minimum Linux on Power Systems server requirements

http://www.ibm.com/systems/power/software/linux/about/index.html

• The /var directory space requirements for new installations and version upgrades:
  • 512 MB for new installations
  • 2560 MB for version upgrades
• 7.5 GB for the installation directory
• 2 GB for the /tmp directory
• 2 GB in the home directory
  Tip: Expect to use more space for problem determination.
• 2 GB for the shared resources area

Significant additional disk space is required for database and log files. The size of the database depends on the number of client files to be stored and the method by which the server manages them. The default active log space is 16 GB, the minimum that is needed for most workloads and configurations. When you create the active log, you need at least 64 GB in size to run replication. If replication and data deduplication are both being used, create an active log of 128 GB in size. Allocate at least three times the default active log space for the archive log (48 GB). Ensure that you have sufficient resources if you are using data deduplication or expect a heavy client workload.

For optimal performance and to facilitate I/O, specify at least two equally sized containers or Logical Unit Numbers (LUNs) for the database. In addition, each active log and archive log should have its own container or LUN.

Ensure that you see the capacity planning section for more details about disk space.

• 12 GB.
• 16 GB if you are using data deduplication.
• At least 40 GB for heavily used servers. Using 40 GB or more of memory enhances performance of the Tivoli Storage Manager server database inventory.
• If you plan to run multiple instances, each instance requires the memory listed for one server. Multiply the memory for one server by the number of instances planned for the system.
• If you plan to use node replication without data deduplication, the system requires 32 GB of memory. Node replication with data deduplication requires a minimum of 64 GB of memory.

For more specific memory requirements when you are using data deduplication, see the Tivoli Storage Manager Blueprint.

• Red Hat Enterprise Linux 6
• Red Hat Enterprise Linux 7
• SUSE Linux Enterprise Server 11, Service Pack 2

libaio.so.1 for Red Hat Enterprise Linux and SUSE Linux Enterprise Servers (32 and 64 bit packages are required).

If you are running SUSE Linux Enterprise Server 11, download the XL C/C++ runtime package V10.1. See the following link for instructions: http://www.ibm.com/support/docview.wss?uid=swg24022673.

• TCP/IP Version 4 or Version 6, which is standard with Linux
• Shared memory protocol (with Version 7.1.7 System p client)

Korn Shell (ksh): You must have the I/O completion ports (IOCP) configured on the operating system.