The promise of LTFS that I have seen is that the tape is supposed to mount to your desktop like a drive and you are supposed to be able to navigate the directory structure and manage data with the systems graphic user interface, like Finder on OSX. Well, technically, you can. But my personal experience is that it totally sucks. But once a tape is mounted you can use line commands in Terminal quite easily to copy data to and from the tape. We are using LTFS on a show right now that is recording ArriRAW to Codex drives. Retrieving the .ari file sequences from the tapes with the line command tools is easy enough. But a lot of people would not like the experience.
One of the feature/drawbacks of LTFS is that you can not span data copies across tapes. So you are limited by the capacity of the tape. Which for being our camera master data backups is fine.
But for backing up projects (avid media, DI source media, all the QTs generated by VFX and for sound editors, etc.) I like to be able to span the data across tapes and make sets of tapes. I've been using Retrospect for years to do this and it seems to work very well. But there are plenty of other software packages you can use. Backup Exec is a popular one, though I have never used it.
Jay
On Jan 18, 2013, at 5:24 PM, johnrobmoore wrote:
> "As a point of information the 1500 can do both .tar and LTFS but only
> fashion victims use LTFS ;-)"
>
> I've never had to setup or drive and LTO system but as an interested researcher I thought LTFS was what allowed access to LTO like a traditional drive where you can access individual files. That's what sounded very nice compared to a streaming tape of old. Am I understanding the LTFS correctly. It sound like there are issues but I'm no slave to fashion as anyone who has seen my SpongeBob Tshirt collection can attest to. ;-)
>
> --- In Avid-L2@yahoogroups.com, "Rupert Watson" wrote:
>>
>> A lot of factors affect the speed. The processor of the PC the software
>> is running on and to which the LTO drive is attached, the speed of the
>> disks / network the files are coming from and the size and number of the
>> files being archived.
>>
>>
>>
>> In theory, with LTO 6, tape can do 160MB/s and store 2.5 TB but you
>> aren't likely to see that sort of speed in a real world scenario.
>>
>>
>>
>> To be honest the way in which the software accesses the files when you
>> are restoring a whole lot of them from the "shelf" is where the speed
>> comes from. In addition the fact that the archive GUI is in effect
>> Windows Explorer makes it very human readable and user friendly.
>>
>>
>>
>> As a point of information the 1500 can do both .tar and LTFS but only
>> fashion victims use LTFS ;-)
>>
>>
>>
>> Rupert Watson
>>
>> +44 7787 554 801
>>
>> www.root6.com
>>
>>
>>
>> From: Avid-L2@yahoogroups.com [mailto:Avid-L2@yahoogroups.com] On Behalf
>> Of mike cardeiro
>> Sent: 18 January 2013 16:17
>> To: Avid-L2@yahoogroups.com
>> Subject: Re: [Avid-L2] what are yall using to archive
>>
>>
>>
>>
>>
>>> From: Rupert Watson rupert@... >
>>>
>>>
>>> And we also like the Xendata 1500 as it keeps a nice little stub file
>>> that you can use to reaccess archived files by hand or using a MAM
>>>
>>> http://tinyurl.com/aj76z4j
>>
>> Holy crap 148 megs a second to tape! Tape has come a long way since I
>> used compact IV tape with arcserve software. Thanks for the link, I
>> wasn't even thinking tape but this was an eye opener.
>>
>> Mike Cardeiro
>> Editor/Animator/Compositor
>> D4 Creative Group - Philadelphia, PA
>>
>> http://www.michaelcardeiro.com/resume/
>> http://www.youtube.com/user/mcardeiro
>>
>>
>>
>>
>> www.root6.com
>> For the latest news visit our blog http://www.root6.com/Blog
>>
>> root6 ltd
>> Registered in the UK at: 4 Wardour Mews, London W1F 8AJ
>> Tel: +44 (0) 20 7437 6052
>> Company No. 03433253
>>
>>
>>
>> [Non-text portions of this message have been removed]
>>
>
>
>
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