Hidden Value details commands
and procedures in MPE that can improve your productivity with HP
e3000 systems. Send your tips or comments to
firstname.lastname@example.org, or fax them to 512.331.3807.
I need to
add storage to my HP 3000. It appears that many people put standard
Seagate or IBM or other SCSI drives on their HP 3000 with no
problems. Ive got both SE and FW interfaces on my HP3000 987.
Is the FW interface LVD or HVD? I have several 36Gb LVD drives but I
dont know if theyll work on my HP 3000.
SE connection is a FAST SCSI-2 Single Ended connection. The
FW connection to which you refer is actually a Fast-Wide
Differential SCSI-2 connection. You can only add HVD disk drives to
the latter. I have used a fairly extensive variety of SCSI disk
drives in the systems here, and I like both Seagate and IBM drives.
The difficulty will be finding HVD disk drives. These seem to be out
of production everywhere as the industry has gone over to LVD in the
UltraSCSI, UltraSCSI2, Ultra160 and Ultra320 guise. However, you
should be able to find these drives on the open market. I believe the
largest HVD drive is 36Gb, but I may be wrong.
You can also buy the LVD
drives and connect them to your SE SCSI port, but that would be a
waste of high performance hardware, as the interface will only work
at the lowest speed on the chain. Another idea would be to get an HVD
to LVD converter, and such can be found at www.paralan.com and other
How do I
check whether a particular listener job is currently accessing a
-q JOBNAME <$OLDPASS
IF CJCW = 0 THEN
the configuration file but cannot use the command chown to change
owner. Im logged on as MANAGER.SYS. What am I doing wrong?
Heres what Ive tried:
shell/iX> cp /SENDMAIL/PUB/sendmail-8.9.1-m/cf/cf/mpeix.cf
shell/iX> chown SERVER.SENDMAIL /etc/sendmail.cf
chown: file /etc/sendmail.cf: Invalid argument
and Mark Bixby reply:
existing file probably doesnt have a group owner assigned., If
that is the case, for some reason MPE wont allow you to change
the owner unless you also specify the group owner as well. Do this
inadvertently typed the name of my HP e3000 in the following command
on my desktop PC: C:\WINDOWS\Desktop> net time \\HP979. It
returned the following display:
Current time at \\HP979 is 5/9/2001 hh:mm
command was completed successfully.
that hh:mm is the same as that displayed by SHOWTIME on the 979.
Adding the parameters /SET and /YES to the above command makes my PC
clock = the 979s clock. Is this time being returned by Samba,
or is it being supplied from somewhere else?
Samba is responding to the NET TIME request. [Editors note:
See this month's net.digest for more neat Samba tricks.]
I have a
client with a brand new N440. On one drive the device ID is reported
differently between DSTAT and SYSINFO. DSTAT calls it LDEV 40, and
says its MAJ3182MC. SYSINFO calls it ST318404LC. Does it really
MAJ3182MC is a Fujitsu 18.2Gb Ultra3 SCA-80pin SCSI HDD, a 10,000
RPM, 4.7-millisecond average seek time disk drive. The ST318404LC is
a Seagate 10,000 RPM, 5-millisecond access time disk drive.
SYSINFO always reports the
device ID you configure, which may or may not be the correct device
ID. DSTAT ALL tries to report the actual device ID.
As it happens, you can tell
SYSGEN that ldev 40 is an MAJ3182MC, at least on 7.0
Express 1 (i.e., that device ID is in IODFAULT.PUB.SYS).
I recommend having
SYSGENs configuration reflect reality, where possible.
up a few files using PKZIP for Windows on an NT 4.0 machine,
FTPd the archive file to one of my HP e3000s and tried to unzip
get a long error message that basically says it cannot find the zip
file directory. What am I missing?
seen this often, and its usually because I didnt FTP the
file across properly. When FTP-ing a zip file from NT to MPE, I
always try to remember,
quote type L 8
I have a
command file where the user enters in the dfid number of a spoolfile.
If its there, it displays correctly. If it is not there, the
command file aborts. How do I trap the fact that the file does not
exist and start over? Heres my attempt:
ECHO PLEASE INPUT THE DFID NUMBER
IF CIERR <> 0
ECHO NON-EXISTENT FILE - TRY AGAIN
the finfo function as in
PLEASE INPUT THE DFID NUMBER
NON-EXISTENT FILE - TRY AGAIN
are five date/time stamps stored on each file label: created,
modified, accessed, allocated and status change. The first three can
be seen with :LISTF,3 and the other two can be accessed via FINFO().
What are the specific rules for when the alloc and/or status dates
are updated? In general trial and error, allocated
usually matches created and status change
usually matches modified, but for both I have seen cases
where they differ.
and others add:
timestamp reflects when the disk space was allocated for the file.
This is usually the same as the created timestamp, but
one example of where they can be different is in the case of
:RESTORE;OLDDATE the create date will show the original create
date, and the allocated date will show the restore date.
The status change
timestamp is required by Posix. From the Posix perspective, file
status is modified when the files Owner or GroupID attributes
are altered, when file permissions or link count are changed and (for
directories) when an entry in the directory is added or removed. To
support these requirements, MPE added a new State-Change timestamp
for all files. One example command that causes status
change to be different from modified date is
:/bin/touch -a <filename>
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