Originally posted by: chrissmith
Normally used when you need to exceed current maximum ie
0516–787 extendlv: Maximum allocation for logical volume Name is Value
Problem determination: Using System Management Interface Tool (SMIT), you specified a value in the Number of
ADDITIONAL logical partitions field to try to increase the logical volume size beyond the maximum number of logical
partitions.
User response: Use SMIT to change the number of logical volume partitions by using the SMIT Physical and
Logical Storage--> Logical Volume Manager--> Logical Volumes--> Set Characteristic of a Logical Volume-->
Change a Logical Volume menu option to specify a new number of logical partitions in the MAXIMUM NUMBER of
LOGICAL PARTITIONS field.
Note: You must change the number of logical volume partitions before you can extend or increase the logical volume.
Problem determination: From the command line, you used the extendlv command (or the chfs command, which
calls the extendlv command) to try to increase the logical volume size beyond the maximum number of logical
partitions.
User response: Use the chlv command to change the number of logical volume partitions by doing the following:
1. Increase the maximum number of logical volume partitions for the named logical volume with the chlv command,
as follows:
chlv -x MaximumLogicalPartitions LogicalVolumeName
2. Rerun the chfs command or the extendlv command.
Note: You must change the number of logical volume partitions before you can extend or increase the logical volume.
http://publib.boulder.ibm.com/infocenter/aix/v6r1/topic/com.ibm.aix.messagecenter/msgcntr.pdf#AIX-Forum