Rules For Creating Im Volumes And Hot Spare Disks; Cfggen Utility Commands; Create Command; Syntax - HP Integrity rx2660 User's & Service Manual

The program name, controller number, command, and parameters fields must be separated by
the ASCII space character. The format of the parameters is command-specific.
The program return value is returned to the user when the program exits. A value of 0 is returned
if the command is successful. Otherwise, a value of 1 is returned.

Rules for creating IM volumes and hot spare disks

When creating IM volumes and hot spare disks, the following rules apply:
All disks that are part of an IM volume or a hot spare for an IM volume must be on the same
SAS controller.
IM volumes are supported.
Only two IM volumes (plus a global hot spare) per controller can be created.
An IM array must have two disks.
A hot spare disk cannot be created without at least one IM volume already created.
The utility does not allow adding a hot spare disk type different from disk types in the volume.
With the AUTO command all drives used are the same type as the first available disk found,
and the size is limited to the size of the smallest disk.

CFGGEN Utility Commands

This section lists the commands available for the cfggen utility.

CREATE Command

The CREATE command creates IM volumes on the SAS controller. Firmware and hardware
limitations for this family of cards limit the number of configurations that are possible.

Syntax

cfggen <controller #> create <volume type> <size> [qsync] [noprompt]

Parameters

<volume type>
<size>
[qsync]
[noprompt]

Operation

After a disk is added to an IM volume, its storage capacity might or might not be used depending
on drive capacity and volume capacity. For example, if you add a 36 GB disk to a volume that
only uses 9 GB of capacity on each disk, the remaining 27 GB of capacity on the disk is unusable.
The disk identified by the first SCSI ID on the command line is assigned as the primary disk when
creating an IM volume. If the SAS controller is allowed to resynchronize the disks, the data on the
primary disk is available by accessing the newly created volume.

AUTO Command

The AUTO command automatically creates an IM volume on the SAS controllers. The volume is
created with the maximum number of disks available for use in the specified volume type. The
main difference between the AUTO command and the CREATE command is that with AUTO
command, you do not specify SCSI ID values for disks to use in the volume. The cfggen utility
uses the first disks it finds that are usable in the IM volume. Firmware and hardware limitations for
the family of controllers limit the number of configurations that are possible.
234 Utilities
Volume type for the volume to be created. Valid value is IM.
Size of the IM volume in megabytes, or "MAX" for the maximum size
available.
Quick synchronization of the volume created.
Eliminates warnings and prompts.