Hidden Value details
commands and procedures in MPE that can improve your productivity
with HP 3000 systems. Send your tips to email@example.com,
or fax them to 512.331.3807.
Edited by John Burke
We have been
encountering the following error almost every night on our backup
ENCOUNTERED MEDIA WRITE ERROR ON LDEV 7 (S/R 1454)
STORE EXPERIENCED ERROR WHILE MARKING MEDIA BAD ON LDEV 7 (S/R
STORE RECEIVED ERROR -100 FROM SUBSYS TS_TAPE_DEVICE_CONTROL (S/R
not sure if this is our tape drive going bad, our tapes getting too
old or what. The System is a 979/400 running MPE/ix 5.5 and the drive
is an HP DDS3 DAT24i drive. The drive is about 6 years old. It does
get cleaned regularly. Our tapes in rotation are fairly old, too.
However, we are receiving this error even when we use brand new
tapes. The new tapes, however, are Fuji media, not HP like our old
ones. I dont know if the drive can tell the difference. What
should we do?
John Burke replies:
drive. DDS drives are notorious for failing. I have never had a DDS
drive come close to lasting through six years of daily use, so you
should consider yourself lucky. Also, the drive cannot tell whether
or not you are using HP branded tapes. Ive used Fuji DDS tapes
and have found them to be just as good as HP branded tapes (note that
HP does not actually manufacture the tapes). I have also gotten into
the habit of replacing DDS tapes after about 25 uses. When compared
to the value of a backup, this is a small expense to pay.
On Samba 2.0.10
Im seeing a new oddity, the Samba JSMAIN process goes busy for
30 seconds, then goes idle for 30 seconds, then goes busy, etc. Below
is an example taken from the display of Glance on an otherwise idle
system. Why is this happening?
B.11.10 HP GlancePlus/iX 13:05:41 Global
Guy Paul and Denis
Based on your
version of Glance, B.11.10, you need to upgrade your Glance version
to B.11.14 via patch GLAMX80C for 7.0. There are known issues with
your version of Glance reporting bogus JSMAIN garbage. This is a
Store-only patch so can be installed without downtime.
What is the JINETD
setup information for that includes the newlink commands?
Mark Bixby replies:
INETDCNF.NET.SYS as the real config file and /etc/inetd.conf as the
symlink is the documented way to do it:
In general, you want the
files in @.NET.SYS to be real files and the alias names
in /etc or /usr/adm to be symlinks.
MPEX has a way to
display symbolic links and target files (e.g. %listf
/etc/@(islink),2). Is there any way to do this in pure
John Burke replies:
Where can I find a
list of HP DLT libraries and what version of MPE can drive them?
libraries are supported on MPE in random mode. While autoloaders can
easily be made to work quite well on the HP 3000, one requires
specialized software in order to make use of the full functionality
of a DLT library. What is important from an HP 3000 point of view is
drives in the library must be supported on MPE and can be connected
to the 3000. This means the drives must be DDS or DLT4000, DLT7000
and DLT8000. If the system is an HSC (pre-PCI) architecture, the
drives must be HVD SCSI. If the system is a PCI system (A- or
N-Class,) the drives can also be LVD.
to the library robot or picker, must also be supported on the 3000,
again HSC needs HVD and PCI can do LVD or HVD.
must have software that will connect to the picker and drive it. This
software can either be running on MPE or on another system, to which
the picker is connected. MPE itself cannot drive a robotic
I went to the HP
3000 Jazz Web site to get the latest sendmail and cant locate a
download link. Does this imply that one must now be on HP support to
get the latest ?
Mark Landon replies:
of sendmail is available as a patch download for 7.0. The same patch
also apparently works for 6.5. MPE/iX 7.5 includes this version of
sendmail in the FOS.
Copyright The 3000 NewsWire. All