Martin Greenwood
Forum Replies Created
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Jon,
Definitely go for LTO-7, you can get a SAS desktop LTO drive and an ATTO H680 card that will work perfectly with your MacPro for under $3K USD. The premium over an LTO-6 drive has gone now LTO-8 has arrived.
The LTO-7 drive will read and write LTO-6 tapes, which are cheapest per TB.
However LTO-7 media drops in price every month, it’s now about $4 more per TB and writes much faster.Also thinking of the future, LTO-8 and LTO-9 drives will read your LTO-7 tapes. Whereas neither will read LTO-6.
Best,
Martin Greenwood
CTO
YoYotta.com
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If you are installing frameworks like LTFS or OSXFUSE on a Mac that has a clean install of High Sierra, then they will need approval. Also installing new ATTO drivers will need to be approved.
This is because of High Sierra System Security.
There is a section on our support page about this.
https://yoyotta.com/help/installATTO.html
If upgrading an existing Mac to 10.13, then this should not be necessary.
Other than this there have been no issues with LTFS and 10.13.
We are seeing a steady rise in the number of YoYottaID customers updating their version of macOS.
Best,
Martin Greenwood
CTO
YoYotta
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The cost of LTO-7 media (~5.7TB) is getting closer to the price per TB of LTO-6 and this drops a little from month to month.
There is also the recent (slightly confusing) announcement that you can store 50% more (~8.5TB) onto an LTO-7 tape when specially formatting it as M8 media in an LTO-8 drive. This makes the cost per TB cheaper than LTO-6. Note that this tape is then not readable in an LTO-7 drive…
Prior to this news there were not any compelling reasons to upgrade from an LTO-7 drive, as the LTO-8 media (~11.4TB) isn’t available yet and the price will probably be high. Also the LTO-8 drive unfortunately does not read LTO-6 media.With LTFS and our YoYottaID software we are able to keep all generations of LTO drives running at full rate with DPX, ARI, EXR image sequences. So we don’t need files to be larger then 1GB as mentioned in that Fuji report linked to by Ju Dor.
However the large buffer size makes sense and may well speed up the transfer of random sizes smaller files (< a few MB)Martin Greenwood
CTO
YoYotta
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With two LTO drives and our YoYottaID LTFS software you can either span across two tapes or make two copies of the same material in parallel.
Both these functions are setup from the GUI and are unattended plus if there is internet you will get an email telling you when the backup is complete.
With LTO-7 you can fit 5.7TB onto one tape in a quicker time (writing is faster) than LTO-5 or LTO-6.
The LTO-7 drive will also read+write LTO-6 and read LTO-5.
YoYottaID LTFS also supports the brand new LTO-8 drive which stores 8.5TB or 11.4TB per tape depending on the media used.
So you may just need one drive. Regardless of which approach we recommend that you create two tape copies if the original material is going to be deleted.Best,
Martin Greenwood
CTO
YoYotta
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What happens if you try the partition commands I mentioned? They should switch you into the data partition.
Martin
YoYotta
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Here at YoYotta we have also had customer requests to delay verification. It’s not ideal, but the situation does arise in the real world.
So now in our YoYottaID LTFS software once the copy completes you can unmount the source media and the verify will continue. Hopefully the source media won’t be erased until the verify is completed !
Also you can abort the verify and then start it again later without the source drive.
You can reverify against the original camera checksums at any time in the future using a free version of our software.Martin Greenwood.
CTO
yoyotta.com
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George,
By coincidence we have just added on the fly formatting to the latest version of our YoYottaID Automation software.
YoYottaID Automation is OS X software that works with Autoloaders like the HP 1/8 LTO unit you are using.
YoYottaID can span larger backups across multiple tapes and you can setup a queue from different sources. Then you can use the built in media database to selectively restore files at a later date.
With the Conform option you can automatically pull back trims of just the shots needed for your edit.Please contact me and I’ll get you setup with a demo version.
Best,
Martin Greenwood
CTO
YoYotta -
LTFS mounts the contents of an LTO tape onto your desktop. This has advantages and disadvantages as you have discovered. The Finder sees the tape and thinks that it is random access media like a hard drive.
This means that you can drag and drop files, but as soon as you open the volume and the Finder sees files it goes off and tries to open each one to retrieve metadata and create thumbnails.
This creates loads of read requests from a linear tape and it will take a long time to show the information. So the behaviour you see is “normal”.You can streamline this by just viewing folders. So never put files directly onto the LTFS volume at the top level. Always drag and drop folders containing files then it will work OK. You can navigate through folders but don’t go right down to the file level.
The reason that this works is that LTFS stores all the file and folder names in memory so once mounted tape access isn’t needed for displaying folders. This is also why using the command line works quickly.
As the previous post mentioned ideally you should use a third party application to control access to the LTFS volume, but provided you follow the above rules that you can perform small simple transfers using the Finder.
My company YoYotta creates YoYottaID LTFS, this application for OSX provides media archive, verification, cataloging and other functionality for production and post.Martin Greenwood
CTO
YoYotta
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I’ve also used this enclosure with the Mac and RedRocket and it works well.
Dustin, where did you get the enclosure for 10 drives?Adam
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Similar question.
Sometimes all the FC raids don’t show up on reboot.
Why is this?
The client seems to keep polling FC but they never show up.
Rebooting usually makes them show up.
(All other clients can quite happily see all raids while this is going on)Adam Hall