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AixNote :: GPFS FAQ on developerworks #1 (Mar 27, 2009)

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20 AixNote GPFS developerworks

GPFS Questions and Answers


General Parallel File System (TM) (GPFS (TM)) is a high performance shared-disk file management solution that provides fast, reliable access from nodes in a cluster environment. Parallel and serial applications can readily access shared files using standard UNIX(R) file system interfaces, and the same file can be accessed concurrently from multiple nodes. GPFS is designed to provide high availability through logging and replication, and can be configured for failover from both disk and server malfunctions. GPFS scalability and performance are designed to meet the needs of data intensive applications such as engineering design, digital media, data mining, relational databases, financial analytical, seismic data processing, scientific research and scalable file serving.

GPFS for POWER (TM) is supported on both AIX (R) and Linux (R). GPFS for AIX runs on the IBM (R) eServer (TM) Cluster 1600 as well as clusters of IBM Power, IBM System p (TM), IBM eServer p5, IBM BladeCenter (R) servers. GPFS for Linux runs on select IBM Power, System p, eServer p5,BladeCenter and IBM eServer OpenPower (R) servers. The GPFS Multiplatform product runs on the IBM System Cluster 1350 (TM) as well as Linux clusters based on selected IBM x86 System x (TM) rack-optimized servers, select IBM BladeCenter servers, or select IBM AMD processor-based servers.

Additionally, GPFS Multiplatform V3.2.1 is supported on nodes running Windows (R) Server 2003 R2 on 64-bit architectures (AMD x64 / EM64T) in an existing GPFS V3.2.1 cluster of AIX and/or Linux (32-bit or 64-bit) where all nodes are at service level 3.2.1-5 or later.

For further information regarding the use of GPFS in your clusters, see the GPFS: Concepts, Planning, and Installation Guide.


Table 1 - Updates to this FAQ for February 2009 include:


Questions & Answers

1. General questions:

2. Software questions:

3. Machine questions:

4. Disk questions:

5. Scaling questions:

6. Configuration and tuning questions:

7. Service questions:

1. General questions

Q1.1: How do I order GPFS?
To order GPFS:

Q1.2: How is GPFS priced?
The price for GPFS for POWER is based on the number of processors active on the server where GPFS is installed.

The price for GPFS Multiplatform is based on a Processor Value Unit metric. A Value Unit is a pricing charge metric for program license entitlements which is based upon the quantity of a specifically designated measurement used for a given program, in this case processors or processor cores. Under the processor Value Unit licensing metric, each processor core is assigned a specific number of Value Units. You must acquire the total number of processor Value Units for each processor core on which the software program is deployed. IBM continues to define a processor to be each processor core on a chip. For example, a dual-core chip contains two processor cores.

A processor core is a functional unit within a computing device that interprets and executes instructions. A processor core consists of at least an instruction control unit and one or more arithmetic or logic unit. Not all processor cores require the same number of Value Unit entitlements. With multi-core technology, each core is considered a processor.


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