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3-54 IBM Informix OnLine Database Server Administrator’s Guide
Change Pathname of Archive Tape Device
To specify an archive tape device on another host machine, use the following
syntax:
host_machine_name:tape_device_pathname:
The following 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 a UNIX shell from your machine without requiring a
password. If your machine does not appear in the hosts.equiv file of the
other host machine, it must appear in the .rhosts file in the home directory of
the informix login. If you are creating archives as root, the machine name
must appear in the .rhosts file for root 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 as TAPEBLK. 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.
Specify TAPEBLK as the largest block size permitted by your tape device.
Specify TAPESIZE 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
more smoothly 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 of TAPEDEV. DB-Monitor displays the current value.
2. Enter the full pathname value for the archive tape device in the Tape
Device
field.
3. Enter new values in the device Block Size and Tape Size fields, if
appropriate.