IBM B50 Certify Media, PCI Scsi, Flag Description Physical Disk channel/ID example All disks

Certify Media

This task allows the selection of diskette or hardfiles to be certified.

Hardfiles can be connected either to	a SCSI adapter (non-RAID)		or	a	PCI	SCSI
RAID adapter. The usage and criteria	for	a hardfile connected	to	a non-RAID SCS
adapter are different from those for	a	hardfile connected to	a	PCI	SCSI	RAID
adapter.

ŸCertify Diskette

This selection provides a way to verify the data written on a diskette. Whe

service aid is selected, a menu asks you to select the				type of	diskette b
verified. The program	then reads all of the	ID and	data	fields	on the disk
time and displays the	total number of bad	sectors	found.

ŸCertify Hardfile Attached to a Non-RAID SCSI Adapter

This selection reads all of the ID and data fields. It checks for bad da counts all errors encountered. If the unrecovered data errors exceed the threshold value, the hardfile needs to be formatted and certified. If the data errors, recovered and unrecovered equipment errors exceed the threshold values, the disk needs to be replaced.

This task may be run directly from the AIX command line. The following usage statement describes the syntax of the command:

Usage:

diag -c -d <deviceName> -T "certify"

ŸCertify Hardfile attached to a PCI SCSI RAID Adapter

This selection is used to certify physical disks attached to a PCI SCSI RAI

adapter. Certify reads the entire disk and checks for recovered errors,

unrecovered errors and reassigned errors. If				these errors exceed the thres
values, the user is	prompted to	replace	the	physical disk.
This task may be run directly from the			AIX command line. The following usage
statement describes	the syntax	of the	command:

Usage:

diag -c -d < RAID adapterName > -T "certify {-l < chID > -A}"

Flag	Description
-I	Physical Disk channel/ID (example: 27)
-A	All disks.

Chapter 9. Introducing Tasks and Service9-5Aids