HP-UX Reference (11i v3 07/02) - 7 Device (Special) Files, 9 General Information, Index (vol 10)

diag2(7) diag2(7)

NAME

diag2 - interface for diagnostic logging and interface to processors

DESCRIPTION

diag2 is used by hardware monitors and tools within the Support Tools Manager (STM), to interact with

processor hardware via Processor Dependent Code (PDC). Without

diag2, support tools for processors will

not be able to operate.

diag2 is also the key component for the following support features:

I/O error logging

Low priority machine check (LPMC) logging

Memory error logging

Pro-active memory page deallocation.

Without the above, information that could help prevent a system or peripheral failure will be lost. In addi-

tion, if a failure occurs, HP will not have the tools or data to diagnose the cause of the problem in a timely

manner. This may cause increased downtime and possible future failures.

AUTHOR

diag2 was developed by HP.

FILES

/stand/vmunix

/dev/diag/diag2

/dev/diag2

/dev/diag

directory containing diagnostic device ﬁles