diagnostics for disk problems on an AIX server

There is a TSM server in which iam getting this error

Unable to read or write logical volume manager
record. PV may be permanently corrupted. Run diagnostics

how do i run the diagnostics??
any suggestions will really help.

Thanks!
karthik

I ran the diag command and came up with the following errors, plz see below
my question was
1) i find a 4 digit error code such as 2310. how do i find out what the error code means.

plz see below the error that i got after running diag command. I would be very glad if u could give me suggestions/advice.
-------------------------------------------------------------------

LABEL: SSA_DEGRADED_ERROR
IDENTIFIER: 3DB7729E

Date/Time: Mon Jul 24 08:00:00 EDT
Sequence Number: 174087
Machine Id: 000FFF6D4C00
Node Id: tsm1
Class: H
Type: PERF
Resource Name: ssa1
Resource Class: adapter
Resource Type: ssa160
Location: U0.1-P1-I4/Q1
VPD:
Part Number................. 09L5695
FRU Number.................. 34L5388
Serial Number...............S0232613
EC Level.................... F23699
Manufacturer................IBM053
ROS Level and ID............A400 0000
Loadable Microcode Level....05
Device Driver Level.........00
Displayable Message.........SSA-ADAPTER
Device Specific.(Z0)........SDRAM=064
Device Specific.(Z1)........CACHE=32
Device Specific.(Z2)........UID=006094BE0000468A

Description
ADAPTER PERFORMANCE DEGRADED

Probable Causes
ADAPTER

Failure Causes
ADAPTER

    Recommended Actions
    PERFORM PROBLEM DETERMINATION PROCEDURES

Detail Data
ERROR CODE
0460 0001 4646 3644 3432 4541 3342 3335 3443 4600 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000

LABEL: SSA_DEVICE_ERROR
IDENTIFIER: FE9E9357

Date/Time: Mon Jul 24 06:51:57 EDT
Sequence Number: 174077
Machine Id: 000FFF6D4C00
Node Id: tsm1
Class: H
Type: PERM
Resource Name: pdisk3
Resource Class: pdisk
Resource Type: scsd
Location: USSAB6F5-D16
VPD:
Manufacturer................IBM
Machine Type and Model......DMVC36B
Part Number.................34L6475
ROS Level and ID............0059
Serial Number...............F80355EA7K
EC Level....................F24491
Device Specific.(Z2)........CUSNA059
Device Specific.(Z3)........34L6475
Device Specific.(Z4)........00200

Description
DISK OPERATION ERROR

Probable Causes
DASD DEVICE

Failure Causes
DISK DRIVE

    Recommended Actions
    PERFORM PROBLEM DETERMINATION PROCEDURES

Detail Data
ERROR CODE
2310 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000