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HP XP Continuous Access Software User Manual

Page 369

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Porting notice for MPE/iX

369

HORCM daemon startup

HORCM can start as a daemon process from a UNIX Shell. But in the case
of MPE/iX, if a parent process exits, then any child process also dies at the
same time. In other words, it looks like MPE/iX POSIX cannot launch a
daemon process from a POSIX Shell. Therefore, horcmstart.sh has been
changed to wait until HORCM has exited after startup of the horcmgr.
According to the rules for MPE/iX, horcmstart.sh is run as a MPE JOB.
The following is an example of a JOB control file named JRAIDMR1 (
HORCMINST=1 ).

!job jraidmr1, manager.sys;pri=cs

!setvar TZ "PST8PDT"

!xeq sh.hpbin.sys '/HORCM/usr/bin/horcmstart.sh 1'

!eoj

When you execute this JOB in the background by using the STREAM
command of MPE/iX, you will have the HORCM daemon running in the
background. You will be able to verify that the HORCM daemon is running
as a JOB by using the SHOWJOB command.

shell/iX> callci STREAM JRAIDMR1

#J15

shell/iX> callci SHOWJOB

Command device

Because MPE/iX POSIX does not provide raw I/O such as UNIX, RAID
manager has used the SCSI pass-thru driver to access the command device
on XP256/512, and is also using the normal read/write SCSI commands for
some RM control operations.

You need to confirm that MPE/iX has installed the patch

MPEKXU3

before using the SCSI pass-thru driver

JOBNUM

STATE IPRI JIN JLIST INTRODUCED

JOB NAME

#J14

EXEC

10S LP

WED 9:02P

JRAIDMR0,MANAGER.SYS

#J15

EXEC

10S LP

WED 9:02P

JRAIDMR1,MANAGER.SYS

#S28

EXEC

QUIET 9 9

WED 9:10P

MANAGER.SYS

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