irm - Internal RAID Manager
The irm command starts a menu-driven Internal RAID Manager program
(IRM) that makes it easy to perform configuration and management tasks
for the A5856A RAID 4Si card.
IRM discovers the RAID cards installed on an HP-UX system and allows
the user to perform the tasks to configure or monitor the RAID logical
drives. Typically, IRM is used to configure the RAID logical drives,
then sam(1M) is used to configure logical volumes and filesystems on
the RAID drives.
Context-sensitive help on the currently highlighted field is displayed
in the lower portion of the screen.
IRM can only be run on text terminals.
IRM requires superuser (user root) privileges to execute successfully.
IRM Functional Areas
IRM performs RAID administration tasks in the following areas:
Configure Logical Drives
+ Create, modify, or clear the RAID card configuration. One
option allows the user to allow IRM to automatically select an
appropriate RAID configuration for the set of disks attached
to the RAID adapter. Note that the data stored on the logical
drives will be lost during these operations. Use a safe
backup mechanism before modifying the configuration.
+ Perform various configuration tasks related to adapters,
logical and physical drives, SCSI channels, and the cache
policies associated with the battery backup.
Rebuild Physical Drives
+ View or rebuild information about the physical hard drives.
+ Check the data consistency of the logical drives. This screen
provides information such as the logical drive number, the
Hewlett-Packard Company - 1 - Formatted: August 2, 2006
RAID level, the size of the drive, the number of stripes and
the stripe size, and the drive state.
+ Reconstruct a logical drive.
+ IRM operates on one RAID adapter at a time. When multiple
RAID cards are installed in a system, be sure to choose the
card that you want to configure. IRM displays the device file
of the card that is being configured in the upper portion of
In general, IRM requires the use of the cursor (arrow) keys to
navigate between items, and the ENTER key to select an option. Use
the ESC key to cancel an operation and return to the previous menu.
The top portion of the screen gives hints about how to navigate in a
irm was developed by HP and American Megatrends, Inc.
/usr/sbin/irm Executable file.
/tmp/irm.lock IRM lock file (if an IRM session dies, it may
leave behind a spurious lock file).
irmd(1M), irdisplay(1M), irdiag(1M), i2outil(1M), sam(1M),
System Administration Tasks
RAID 4Si User's Guide
Hewlett-Packard Company - 2 - Formatted: August 2, 2006