Assuming this is a physical disk - the most direct advice, given by -=XrAy=- - is to remove the paging00 logical volume.
Also simple, is to repeat the command and see if the error/warning repeats again. The key word in the message is "may". You should also review the errpt output for any specific HW related errors.
From:
FAQ: errpt: Types of DISK_ERR
Quote:
DISK_ERR4 T Error caused by bad block or occurrence of a recovered error
Rule of thumb: If disk produces more than one DISK_ERR4 per week, replace the disk
Rather than replace the disk immediately (maybe replacements are not possible!?) you can also try a "low-level" format and certify of the disk using the
diag command in the area identified by
Task Selection (Diagnostics, Advanced Diagnostics, Service Aids, etc.)
Lastly, once you identify a BB (bad block) and know which PP (physical partition) it is in, you can create a "dummy" logical volume (flag it as type lvBB using
mklv -t lvBB ...) and then never assign any data to it. This will keep the AIX LVM from ever trying to use it dynamically.
Note: for this last to work you must supply some extra arguments I do not know from memory (maybe someone else does). But hsi is what manuals are for.
Note2: this assumes it is a physical volume - i.e. a real SCSI or SSA disk - directly attached to the system.