Configuration and Tuning GPFS for Digital Media Environments

98 Configuration and Tuning GPFS for Digital Media Environments

zoning configuration of one switch (itsosan1). As all nodes have two HBAs, the

zoning of the second switch is similar, using the second HBA and the second

controller (B) of the DS4500 instead. Aliases are used for configuration, as

names are easier to remember than numbers.

Example 3-5 FC-switch (2109-F32) itsosani1 profile - partly (zone configuration only)

[Zoning]

cfg.ITSO_zone_cfg:GPFS_ITSO1_gpfs41A;GPFS_ITSO1_gpfs42A;GPFS_ITSO1_gpfs43A;GPFS

_ITSO1_gpfs44A;GPFS_ITSO2_gpfs29A;GPFS_ITSO2_gpfs29B;GPFS_ITSO2_gpfs30A;GPFS_IT

SO2_gpfs30B

zone.GPFS_ITSO1_gpfs41A:DS4500_A1;gpfs41_1

zone.GPFS_ITSO1_gpfs42A:DS4500_A1;gpfs42_1

zone.GPFS_ITSO1_gpfs43A:DS4500_A1;gpfs43_1

zone.GPFS_ITSO1_gpfs44A:DS4500_A1;gpfs44_1

zone.GPFS_ITSO2_gpfs29A:DS4500_A1;gpfs29_1

zone.GPFS_ITSO2_gpfs29B:DS4500_B1;gpfs29_2

zone.GPFS_ITSO2_gpfs30A:DS4500_A1;gpfs30_1

zone.GPFS_ITSO2_gpfs30B:DS4500_B1;gpfs30_2

alias.DS4500_A1:20:02:00:a0:b8:12:10:6f

alias.DS4500_B1:20:03:00:a0:b8:12:10:6f

alias.gpfs29_1:10:00:00:00:c9:31:b0:4c

alias.gpfs30_1:10:00:00:00:c9:33:01:8a

alias.gpfs41_1:10:00:00:00:c9:42:1e:83

alias.gpfs42_1:10:00:00:00:c9:42:2f:78

alias.gpfs43_1:10:00:00:00:c9:40:77:58

alias.gpfs44_1:10:00:00:00:c9:40:3b:41

enable:ITSO_zone_cfg

3.2.4 Servers

IBM offers a wide range of servers suitable for running GPFS. The latest

supported server hardware list can be found at:

http://www.ibm.com/servers/eserver/clusters/software/gpfs.html

Whenever you chose server, make sure it fits your performance and connectivity

needs, and also check for latest microcode updates available. Make sure to use

the correct files for your platform. Follow the instructions described in the

README file.

In our environment we have used several platforms, but we have closed as an

example two IBM Eserver® pSeries 550 with the following configuration:

򐂰 4 processors

򐂰 8 GB RAM

򐂰 8 x 73 GB internal SCSI disks divided in two SCSI buses

Chapter 3. Infrastructure configuration 99

򐂰 One dual port on-board Gigabit ethernet

򐂰 One dual port PCI gigabit ethernet adapter

򐂰 Four FC 2765 HBAs (Emulex)

We partitioned the servers Logical Partitioning (LPAR) in two independent logical

partitions, each containing half of the resources mentioned above. We have use

static partitions only, with dedicated resources.

We have defined the available IDE (CD-ROM) and the USB bus to be a “desired”

resource, therefore it can be alternately allocated to each partition (for software

installation and updates). The final configuration contains is results in four

independent hosts.

Figure 3-9 shows the memory allocation for a partition.

Figure 3-9 LPAR profile of p5 550 - memory configuration

Figure 3-10 on page 100 shows the I/O resource allocation for our systems.

Restriction: Keep in mind that without a PCI expansion drawer, the available

number of PCI slots of an p5 550 is limited to five.

100 Configuration and Tuning GPFS for Digital Media Environments

Figure 3-10 LPAR profile of p5 550 - physical I/O configuration

Finally, we have allocated two dedicated processors for each LPAR, as shown in

Figure 3-11 on page 101.