Change Hardware Vital Product Data; Configure Dials And Lpf Keys - IBM p 655 series User Manual

After the read certify of the disk surface completes for hdisk hard files, the certify operation performs
2000 random-seek operations. Errors are also counted during the random-seek operations. If a disk
timeout occurs before the random seeks are finished, the disk needs to be replaced.
The Certify service aid displays the following information:
– For hdisks:
- Drive capacity in megabytes.
- Number of data errors recovered.
- Number of data errors not recovered.
- Number of equipment checks recovered.
- Number of equipment checks not recovered.
– For pdisks:
- Drive capacity in megabytes.
- Number of data errors not recovered.
- Number of LBA reassignments
- Number of equipment checks not recovered.
This task can be run directly from the AIX command line. See the following command syntax: diag -c
-d deviceName -T "certify"
Flag Description
-c No console mode
-d Specifies a device
-T Specifies the certify task
v Certify Hard File Attached to a PCI SCSI RAID Adapter
This selection is used to certify physical disks attached to a PCI SCSI RAID adapter. Certify reads the
entire disk and checks for recovered errors, unrecovered errors, and reassigned errors. If these errors
exceed the threshold values, the user is prompted to replace the physical disk.
This task can be run directly from the AIX command line. See the following command syntax: diag -c
-d RAIDadapterName -T "certify {-l chID | -A}"
Flag Description
-c No console mode
-d Specifies the RAID adapter to which the disk is attached
-T Specifies the certify task and its parameters
-I Specifies physical Disk channel/ID (for example: -l 27)
-A All disks

Change Hardware Vital Product Data

Use this service aid to display the Display/Alter VPD Selection Menu. The menu lists all resources
installed on the system. When a resource is selected, a menu displays that lists all the VPD for that
resource.
Note: The user cannot alter the VPD for a specific resource unless the VPD is not machine-readable.

Configure Dials and LPF Keys

Note: The Dials and LPF Keys service aid is not supported in standalone mode (CD-ROM and NIM) on
systems with 32 MB or less memory. If you have problems in standalone mode, use the hard
file-based diagnostics.
This service aid provides a tool for configuring and removing dials and LPF keys to the asynchronous
serial ports.
Chapter 7. Introducing Tasks and Service Aids
77