HP StorageWorks Disk Array XP operating system configuration guide: SGI IRIX (A5951-96075, December 2005)

Partitioning and l

abeling the devices

After new device r

ecognition has been veriﬁed, partition the new SCSI disk devices

using the fx utili

ty. When the disk array is connected through a fabric switch, you must

specify the dev i

ce ﬁle when starting the fx utilit y. After setting the partitions for a device,

verify the part

itions using the prtv toc command.

The IRIX system controls disk devices using partitions. One LUN can be divided into a

maximum of sixteen partitions (primary par tition 0 through 15). The m a ximum capacity

per partition is not limited. Partitions 8 (vh) and 9 are reserved and are used for storing

disk m anagement information. Partition 10 is also reserved. Therefore, the number of

available partitions per device is thirteen (0 to 7 and 11 to 15).

CAUTION:

Do not partit

ion or label the D ata E xchange (DE) devices. This will prevent the DE

software fr

om accessing the device. These devices must be installed and accessed

as raw devices.

To partition a nd label the devices:

1. Use the fx utility to create and label the partitions for each new OPEN-x logical unit.

Example

Disk Array XP operating system conﬁguration guide: SGI I RIX