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BRU PE : Best practices question...

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David Battistella
BRU PE : Best practices question...
on Oct 7, 2013 at 10:38:51 pm

Hi,

I'm a brand new BRUE PE user, but I am past the initial 30 days (got the unit, registered it and got very busy the past few months).

I want to set up a very simple workflow in my shop.

I capture RED EPIC and I have all of my r3d files split into individual project coders.

I created one tape per project and as I shoot and back up r3d material for the various projects I would like to:
1. reinsert the project tape
2. have BRU PE see the differences between what is on the tape and what is on the disk.
3. append the tape with new material added to the project folder.

Can anyone give me a simple step by step on how to set this up efficiently?
I have read the BRU PE manual but it seems a bit complex in terms of learning the BRU language.

Any help appreciated.

David

______________________________

http://www.davidbattistella.com



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Tim Jones
Re: BRU PE : Best practices question...
on Oct 7, 2013 at 11:46:51 pm

I've got to hit the road, but will respond in-depth when I get home. Give me a half hour or so (traffic ... yech!)

Tim
--
Tim Jones
CTO - TOLIS Group, Inc.
http://www.productionbackup.com
BRU ... because it's the RESTORE that matters!


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David Battistella
Re: BRU PE : Best practices question...
on Oct 8, 2013 at 12:21:21 pm

Thanks

Looking forward to it

David

______________________________

http://www.davidbattistella.com



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Tim Jones
Re: BRU PE : Best practices question...
on Oct 8, 2013 at 3:19:45 pm

Well, networking being networking, I was totally cut off last night when we got home.

Let's try again this morning :).

BRU PE will only do incremental backups if you've created a job definition and have run that definition as a full backup previously (thus creating the reference files needed to determine the date/time of that full. You would do this from the Advanced view panel.

Select your folders / volumes for backup
Set your tape drive / library settings
Set the "Type" to "Full"
Save the Job Definition
Answer "Yes" to create the Incremental and Differential definitions
(ignore the schedule question for now)
Select the Full job from the "Saved Jobs" folder under the "Operations" list
Run it

This creates your full backup and sets the comparison marker on the system for later incremental backups.

When you want to run an incremental based on that same file selection:

Select the Incremental job from the "Saved Jobs" folder under the "Operations" list
(all of the settings will automatically load)
Run it

That's really all that you need to do if you want to manually and interactively run fulls and incrementals of a specified set of folders (or volumes). For info on letting the system run these for you on a set schedule, refer to Chapter 9 (page 67) in the PE User's Guide.

More Details ...

BRU (all versions) does not depend on the contents of any archive or tape to determine what should be included within a differential or incremental backup operation. BRU depends on the timestamp information of the files on your filesystem to recognize files to include (or exclude) based upon a date / time parameter, These are the Create Time (ctime), Modification Time (mtime), and - for HFS+ filesystems - Backup Time (btime). Here's how we track these things (sorry if this is basic for some):

When BRU starts a backup, we create a temporary date marker file (empty file, just tracking the date and time) on your system.The name of the file depends on the type of job and whether you've named that job. For an un-named job, they will look like this:

default.LASTBACKUP
default.LASTFULL

or, for a named job, like this:

The Job Name.LASTBACKUP
The Job Name.LASTFULL

Once the creation is completed successfully, the temporary file is moved to a permanent location so that we can later compare the date of the START of that operation to the new operation. In the case of your incremental, we would use the "*.LASTBACKUP" file as the marker. Therefore, when your incremental job runs, we ask the filesystem for any file that has a ctime or mtime NEWER that that file's date/time or (for Mac HFS+ filesystems) a btime OLDER than that file's date/time. This is much faster than performing a file comparison and also means that you can write an incremental to a completely different set of tapes than the associated full.

As always, questions are welcome. Let me know if you're looking for more or less detail. BRU's format may be proprietary for reliability, but we're very happy to share how we do the other things we do (especially since they are based on proven methodologies that date back to the late 70's :) ).

Tim
--
Tim Jones
CTO - TOLIS Group, Inc.
http://www.productionbackup.com
BRU ... because it's the RESTORE that matters!


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David Battistella
Re: BRU PE : Best practices question...
on Oct 8, 2013 at 4:48:13 pm

Thanks Tim,

Excellent primer and I will create the backups in this manner now. If I run into any hitches I will let you know.

Many thanks for the detailed response.

David

______________________________

http://www.davidbattistella.com



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David Battistella
Re: BRU PE : Best practices question...
on Oct 10, 2013 at 5:48:23 pm

Thanks Tim,

This system is implemented and working flawlessly.

David

______________________________

http://www.davidbattistella.com



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Tim Jones
Re: BRU PE : Best practices question...
on Oct 10, 2013 at 9:17:15 pm

Very good to hear.

Tim
--
Tim Jones
CTO - TOLIS Group, Inc.
http://www.productionbackup.com
BRU ... because it's the RESTORE that matters!


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David Battistella
Re: BRU PE : Best practices question...
on Oct 18, 2013 at 10:14:50 pm

Hi Tim,

I have a snag.

I have redone all of my current tapes with your back up plan, however when I reinsert the tape and ask to run the incrimental backup I get a message saying that the backup could not be found and asks if I want to promote it to full.

I say yes, then Bru goes to the end of the tape and says it is going to append. This confuses me, is it doing an incremental back up or not (after I have added R3D files to the folder that I thought I had backed up?

David

______________________________

http://www.davidbattistella.com



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Tim Jones
Re: BRU PE : Best practices question...
on Oct 19, 2013 at 6:32:01 pm

Hi David,

I'm heading for SMPTE Hollywood, so might be hard to reach. Please be sure to open a ticket with our support team and they'll help determine what's occurring - support.bru.com.

Tim
--
Tim Jones
CTO - TOLIS Group, Inc.
http://www.productionbackup.com
BRU ... because it's the RESTORE that matters!


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Anita Mandy
Re: BRU PE : Best practices question...
on Oct 20, 2014 at 9:50:43 pm

Hi There,

On the off chance you had an answer for this I thought I would give you a go.

I have been archiving with BRU PE for a few years and have never encountered this. I am trying to create a new library destination in BRU preferences. as usual I go to BRU > preferences > devices> click 'manage' in default library destination > create new destination > check the required slots > save.

When i go out there are no destinations, and when I go back in to 'manage' to check it out, it has disappeared. This is happening every time.. it's like it is not saving at all.

Any ideas? Ive restarted, closed all other applications, it is up to date.

Any info let me know
Thanks
Anita


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