IBM 000-8697 User Manual

IBM Informix OnLine Database Server Administrator’s Guide

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.

Select the Archive menu, Tape-Parameters option to change the
value of

TAPEDEV. DB-M

onitor displays the current value.

Enter the full pathname value for the archive tape device in the

Tape

Device

 field.

Enter new values in the device

Block Size

and

Tape Size

fields, if

appropriate.