3-54 IBM Informix OnLine Database Server Administrator’s Guide
Change Pathname of Archive Tape Device
Tospecify an archive tape device on another host machine, use the following
syntax:
host_machine_name:tape_device_pathname:
Thefollowing example specifies an archive tape device on the host machine
kyoto:
kyoto:/dev/rmt01
The host machine where the tape device is attached must permit user
informix to run aUNIX shell from your machine without requiring a
password. If your machine does not appear in thehosts.equiv file of the
otherhost machine, it must appear in the .rhosts file in the home directory of
theinformix login. If you are creating archives as root, the machine name
must appear in the .rhosts file forroot on the other host machine.
Verify that the block size and the tape size are correct for the new device.
Block size for the archive tape device is specified asTAPEBLK. Tape size is
specified as TAPESIZE. If you need to change these values, you can do so at
the same time that you change the value of TAPEDEV.
SpecifyTAPEBLK as the largest block size permitted by your tape device.
SpecifyTAPESIZE as the maximum amount of data that should be written to
this tape.
Changing the value of TAPEDEV from a real device to/dev/null proceeds
moresmoothly if you do it when OnLine is offline. As soon as you make the
change, you are only able to restore your system to the point of your most-
recent archive and logical log backup tapes. You cannot restore work done
since then.
From DB-Monitor
1. Select the Archive menu, Tape-Parameters option to change the
value ofTAPEDEV. DB-Monitor displays the current value.
2. Enterthe full pathname value for the archive tape device in the Tape
Device field.
3. Enternew values in the device Block Sizeand Tape Sizefields, if
appropriate.