IBM H80 Series manual Certify Media, Flag Description

Certify Media

This task allows the selection	of diskette or hard files to be certified.
Hard files can be connected	either to a SCSI adapter (non-RAID) or a PCI SCSI
RAID adapter. The usage and	criteria	for	a hard	file connected to a non-RAID
adapter are different from	those for	a	hard file	connected to a PCI SCSI RAI
adapter.

ŸCertify Diskette

This selection enables you to verify the data written on a diskette. When yo

select this service aid, 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 hard file needs to be formatted and certified. If the

recovered data errors, as well as	recovered and unrecovered equipment errors
exceed the threshold values, the	disk needs to be replaced.
This task can be run directly from	the AIX command line. See the following
command syntax:
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 thre
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 RAID adapterName-T "certify {-l chID-A}"
Flag	Description
-I	Physical	Disk	channel/ID	(example:	27)
-A	All disks

Chapter 6. Introducing Tasks and Service113 Aids