Robert Burton <[EMAIL PROTECTED]> wrote:
>Hi all .. I read that BRU can use two tape drives and when one fills up
>the backup will spill over to the other drive.
>
>Has anyone actually done this?
>How well does it work?
>
>I have good confidence in BRU, but hope someone who has actually used
>this could tell me how well it works for them.
I haven't actually used it, but from the BRU online manual at:
http://www.estinc.com/brumanual/chap8.html#multi
----- pasted text -----
You use the -f option to tell BRU to use multiple files or multiple paths
(which could be devices, for example) to store the archives. If multiple -f
options are given, each path is added to a list of paths to cycle through
each time a volume change is required. When the end of the list is reached,
BRU automatically cycles back to the first path and waits for confirmation
to continue the cycle again. Any input other than a carriage return will
cause BRU to use the newly entered path and to abort the cycling for the
remainder of the current run. This feature is known as device cycling.
The following example will do a full system backup (starting at root). It
will first write data to /dev/tape1. When it is full, it will automatically
continue on /dev/tape2.
NOTE: When using this option all devices need to be the same size as the
first device. Bru takes the size of the first device and uses that size for
all other device when device cycling starts. If you specify a size of zero
(0), bru will then continue to write to each device until it receives an
end of tape message. Then, bru will switch to the new drive or device:
$ bru -cv -f /dev/tape1 -f /dev/tape2
To do a multiple device restore, the command is similar:
$ bru -xv -f /dev/tape1 -f /dev/tape2
----- end pasted text -----
Note the warning about device size - make sure the size of both devices in
/etc/brutab are set to zero so that BRU will write to the end of both
tapes/devices. I'd also be inclined to to a manual verify and/or diff the
first few times just to be on the safe side.
-Eric
Eric Sisler
Library Computer Technician
Westminster Public Library
Westminster, CO, USA
[EMAIL PROTECTED]
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