Communicator e3000 MPE/iX Release 7.0 Express 1 (Software Release C.70.01) (30216-90328)

102 Chapter5
Technical Articles
Predictive Support Changes in MPE iX 7.0 Express 1
Predictive for MPE iX 7.0 Express I includes the following changes:
• The Predictive version is B.70.02.
• Predictive runs on 9x8, 9x9, 99x, A400, A500 and N4000 systems. Note that 9x7
systems are no longer supported on MPE iX 7.0, so they are not supported by
Predictive.
• Support for A and N class system memory. The sysdiag version of Predictive on the
initial MPE iX 7.0 release disabled memory coverage on all A and N class systems.
• Autoraid disk devices (such as the model 12H, XP256, XP512, etc.) are not covered by
Predictive on MPE iX.
• The Predictive DISCSCAN scanner is no longer available as of MPE
iX 6.5. This is because DISCSCAN supported the older HPIB and HPFL devices. The
interface cards for these devices are not supported on MPE iX 6.5 and MPE iX 7.0.
• The Predictive Support MONitor (PSMON) changes from PSMON.PRED.SYS to
PSMOND.PRED.SYS. The Predictive code from the HP-UX version of Predictive was
leveraged to create the new version of Predictive. When HP-UX Predictive was ported
from sysdiag to STM, PSMON was changed to PSMOND. This was carried forward into
MPE iX 7.0 Express I. The new PSMOND monitor utilizes both the posix and MPE iX
environments. The PSMOND monitor uses network sockets to communicate with the
STM diagnostic monitor diagmond. This requires the addition of an entry in the
SERVICES.NET.SYS file for psmond. The installation job for Predictive will attempt to
add a psmond entry as socket number 1788, as follows:
psmond 1788/tcp # Predictive to STM diags
If there is already a psmond entry, the installation job will not attempt to add another
one. If there is another service using socket number 1788, the installation job will add
10 to the service number (1798) and check if that service exists. The installation job
will try incrementing the service number by 10 up to 50 times (service numbers
1788,1798,1808 thru 2278). If the install job is unable to find an unused number, an
install error 201 will occur, and the operator will need to manually add a psmond entry
to SERVICES.NET.SYS before the installation can continue.
• The Predictive SCSI disk scanner (SCSISCNP.PRED.SYS) has been changed to improve
the accuracy of disk failure detection. The SCSISCAN scanner on sherlock based
versions of Predictive could only look at the logs residing on HP manufactured disks
(such as HPC2490AM, HPC2474S, etc.). For OEM manufactured disks (Seagate,
Quantum, IBM, etc.) SCSISCAN could only look at the system logfiles for errors that
were logged for the individual disks.
The SCSISCAN scanner on the STM version of Predictive is able to look at the logs
residing on both HP and OEM disks. This enables more accurate problem detection.
Both the standard SCSI log pages and Growing Defect List are looked at.
• The Predictive Support Monitor (PSMOND.PRED.SYS) startup model has changed. A
new job named JPSMON.PRED.SYS was created to start PSMOND. To have Predictive
monitor your system, JPSMON.PRED.SYS must always be running. We chose not to
change the name of the job from JPSMON.PRED.SYS to JPSMOND.PRED.SYS so that
customers would not have to change their existing environment. The sysstart.pub.sys