Hidden Value details
commands and procedures in MPE that can improve your productivity
with HP 3000 systems. Send your tips to firstname.lastname@example.org,
or fax them to 512.331.3807.
We are still
on MPE/iX 5.5 PP7. Is it possible to upgrade directly to MPE/iX
Paul Edwards replies:
No, you have
to go to 6.0 or 6.5 first and then to 7.0. Why not go to 7.5 and be
on the latest and last release? Note, you may have hardware issues
depending on the HP 3000 you have, so be sure to check compatibility
available for MPE/iX 6.0?
Try the patch
NSTGDK3A, available from the ITRC.
Is there any
way to find out if a job is scheduled BY NAME, other than brute force
parsing a :showjob output? JINFO only takes job numbers. For
example, if you want to see if a named job is running, you can:
Are you there?
tell generates J2 FOO.BAR not interactive. Message not
sent to job. (CIWARN 1627).
trick doesnt work if the job exists but is scheduled, you get
There was no session found that matched this ID. (CIWARN 1619)
doesnt set any return codes whether it exists or not. Is there
a crafty workaround, or do you have to parse SHOWJOB output?
Gary Paveza replies:
To tell if a
job is around, you could always use the JOBCNT function.
I have an older
A-Class box with a flashing attention light. Does this mean anything
or should I ignore it, like the oil light in my truck?
Gary Jackson replies:
Do a control
B, read the ERror log (at least one record) and then the flashing
light should disappear. At the prompt, type in CO to go back to
David Sims adds:
In our case
it was the GSP (General Service Processor) telling us that there is
an error code that had not been accessed in its store. This happens
when you power down the e3000 and then power it back up again. Most
of the time it is a message that can be ignored, but you will need to
access the GSPs error messages and display it to stop the
How much will a
DLT8000 store before it requires a second tape? Is it data
and Jeff Woods reply:
drive, using a DLT IV tape will record 40GB of native (uncompressed)
data. With hardware compression enabled, this number can grow up to
80GB. Depending on the data, this number can be high or low but is a
fairly reliable measure for data consisting of databases and programs
and such stuff. If the data is mainly incompressible stuff, you will
get less than 80GB, but not less than 40GB.
How do I know what
my MPE/iX version is? When I log on I get the message: HP3000
Release: C.60.00 User Version: C.60.02
Gilles Schipper replies:
running MPE/iX 6.0 with PowerPatch 2.
John Burke adds:
HPSWINFO.PUB.SYS to determine what patches beyond PowerPatch 2 have
Is there a version
of zip/unzip that runs on MPE/iX?
Jens von Bulow replies:
Yes. You can
download it from the Neil Harvey & Associates Web site at
How do I configure
Windows XP to use clear text passwords so I can communicate with
Lane Rollins replies:
2000 and Windows XP, Control Panel -> Administrative Tools ->
Local Security Policy
In the tree
inside the MMC snap in go to Security Settings -> Local Policies
-> Security Options
the entry Microsoft network client: Send unencrypted password
to third-party SMB servers to enabled.
box and youre done.
My DLT 4000 was
not detected at reboot by my HP 3000 (MPE/iX 6.0). The message was
configured but not available. What can I do?
Giles Schipper replies:
You can try
DOWNing and then UPing the device as well as power-cycling it.
However, you are probably going to have to reboot.
make absolutely sure that the DLT4000 is completely inactive (i.e.,
not in the process of loading a tape). You might have a SCSI address
conflict - you can verify your actual SCSI addresses with ODE
To get into
- perform a boot
(from primary path),
- answer Y to
interact with IPL
- type ODE at isl prompt
- type RUN MAPPER at
[Editors note: The problem turned out to be a faulty
SCSI selector on the DLT and the drive had to be replaced.]
What are the
NMLGxxxx log files in PUB.SYS used for, and how long they should be
kept? They seem to fill up and start new files almost daily and
Ive just discovered that Ive got over 800 of them.
Donna Garverick replies:
They are the
network log files, somewhat similar to the log#### files, but
strictly for network logging. As far as how long to keep them, that
is up to you. Right now, because networking life is good, Im
only keeping 10 days worth of network log files.
Craig Lalley adds:
could be happening here.
1) You have a
problem with you network and excessive errors are being logged, in
which case use NMDUMP to read the log files.
2) There are
just informational messages being logged and nothing to worry
purge them on a regular basis. You can determine if there are errors
in your network by doing :LINKCONTROL @;STATUS=all. This will let you
know if the last 5 or 6 logs are worth saving.
We need to hook up
two DTCs again. How can we put these DTCs on their own LAN card?
Jeff Kell replies:
have two LAN cards, leave the TCP/IP one alone. Set up the second
ones hardware address in the DTSLINK configuration of NMMGR.
You will then need the MAC addresses of the DTCs. Configure these in
NMMGR, host-based DTC management, including their MAC addresses, and
configure the card(s)/port(s) as necessary. Validate and exit (you
probably dont want to add all this online).
For cabling, you
didnt say which DTCs. If they are DTC48s setup by default, they
will want to use the BNC connectors unless you open them up and
change jumpers to use the AUI connector instead. Enable SQE heartbeat
on the transceivers (DTCs and 3000). If using BNC, be sure you have
both ends terminated, and use T connectors throughout (no
shortcuts BNC-to-BNC). Reboot and pray.
Lars Appel adds:
resorting to reboot, I would probably first try if the dynamic
configuration changes inside NMMGR (when it prompts whether to
activate the changes now or later) or with DTCCNTRL FUNC=DYNCONF work
as needed. If that does not help, you could still use DTCCNTRL
FUNC=SHUTDOWN and FUNC=RESTART to selectively restart the DTS
subsystem instead of the whole machine. Can save quite some time.
We have been
concerned here with increasing backup times recently and have been
having a closer look at our backup procedures as a result. Were
using plain old STORE to two DDS-3 drives (one internal, the other
external). One of the things weve been looking at is
interleaving (using the :INTERLEAVE option of STORE). Is it
worthwhile to do it?
John Burke replies:
It is mostly
safe, but Ive never been a big fan of ;INTERLEAVE for the
reasons you mention. DDS is just too flaky for my tastes.
I had five
DDS drives and actually configured five separate, non-intersecting,
backups to run simultaneously. This way, if a problem occurred on any
one drive, it did not affect the other four tapes and I was at least
partially backed up. The length of the full backup was
the length of the longest individual store. With occasional
adjustment, the backup could be kept reasonably in balance.
The downside to this
approach is that you must be in control of system account management
and (possibly) make manual adjustments to your backup scheme every
time there are account/group additions. On some systems this could be
daunting. However, I used the above scheme for over five years and
never lost a file.
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