HP-UX Reference (11i v1 05/09) - 1M System Administration Commands A-M (vol 3)

a
amcfg(1M) amcfg(1M)
An attempt was made to bind a LUN to a controller which is not responding. No operation is per-
formed.
amcfg: LUN’s new owning controller not responding.
Check controller status or bind LUN to the other controller.
An attempt was made to replace (unbind and rebind) a LUN, but the new owning controller does not
respond. No operation is performed.
amcfg: The specified operation cannot be performed
on a passive controller.
An attempt was made to bind or replace a LUN on a passive controller.
amcfg: Error in command execution, <Additional Error Info>:
<Error Info Decode>
The command failed due to a device error, an internal error, or a system error. The Additional Error
Info and Error Info Decode fields will hold specifics about the failure and its cause.
amcfg: A RAID 5 LUN with more than one disk on a channel is not a
recommended high availability configuration. Use -force to override.
amcfg: A RAID 5 LUN with more than one disk in an enclosure is not
a recommended high availability configuration. Use -force to over-
ride.
amcfg: A RAID 5 LUN with more than six disks in this array is not
a recommended high availability configuration. Use -force to over-
ride.
amcfg: A RAID 0/1 LUN with both mirrors residing on the same channel
is not a recommended high availability configuration. Use -force to
override.
amcfg: A RAID 0/1 LUN with both mirrors residing in the same enclosure
is not a recommended high availability configuration. Use -force to
override.
amcfg: A RAID 0/1 LUN may contain no more than 30 disks.
The absolute maximum number of disks that the array will support in a RAID 0/1 LUN has been
exceeded.
amcfg: A RAID 5 LUN may contain no more than 20 disks.
The absolute maximum number of disks that the array will support in a RAID 5 LUN has been
exceeded.
EXAMPLES
Bind a 5-disk, RAID 5 LUN on disk array RACK_51. The disk array includes five disk enclosures, each on
its own channel. The capacity of the LUN will default to the total capacity available from the five disks.
The LUN is owned by controller A, is assigned number 2, and uses a stripe segment size of 16 Kbytes. Note
that each disk is in a different enclosure for high availability, and that there are no spaces between the
individual disk parameters.
amcfg -L A:2 -d 1:1,2:2,3:1,4:4,5:3 -r 5 -s 16 RACK_51
Bind a RAID 0/1 LUN on disk array RACK_51. The LUN is owned by controller B, is assigned number 4,
and uses a stripe segment size of 4 Kbytes. Note that the disks selected create mirrored pairs that are in
separate enclosures (1:3, 2:3 and 1:4, 2:4). This maintains high availability. Although RAID 1 is specified,
the inclusion of more than two disks causes the disk array to create a RAID 0/1 LUN.
amcfg -L B:4 -d 1:3,1:4,2:3,2:4 -r 1 -s 4 RACK_51
Calculate the available capacity from a five-disk RAID 5 LUN on disk array RACK_51.
amcfg -C -d 1:2,2:2,3:2,4:6 -r 5 -s 32 RACK_51
Delete LUN 3 on the disk array RACK_51:
amcfg -D 3 RACK_51
Change the ownership of LUN 0 on disk array RACK_51 to controller B:
amcfg -M 0 -c B RACK_51
Section 1M−−20 Hewlett-Packard Company − 4 − HP-UX 11i Version 1: September 2005