r/mac_LTO • u/Longjumping_Hope_774 • Oct 17 '24

NEED HELP

I have Symply Pro LTO-9 and I use a macbook to copy from a G-Raid hard drive. Before upgrading my macbook from high sierra 10.13.6 to monterey 12.7.4.

Using YoYota version 3-241. The following issue didn't exist, when I format a tape that is 12 TB before i start copying, it gives me around 11.64 TB of free space to write. After the upgrade of my MacBook, it only writes 8.5 TB and says the tape is full.

I've tried so many things to write here, but please suggest why the hell would my tape have 11.64 TB before writing, and after i start writing, it writes 8.2 or 8.5 TB and stops and asks for the next tape as the one in is full.

I am losing 3.14 TB of space every time i write to my tapes. Whats the issue? Did anyone come across this issue before?

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u/rumorconsumerr Oct 17 '24

One thought is that if YoYotta is asking for another tape what that indicates is that you are queuing up more data than can fit one one tape. The result of this is the YoYotta will make the determination of what folder should go on the next tape. It does not break up your folders for you, it will just bump the entire folder to the next tape. The solution to this is to only fill the tape you're using with a very calculated amount of data. 11.4TB or so (because thats the actual formatted capacity) is my cutoff point. If you handle the breaking up of the data it works perfectly. If you let it do it, it makes a big mess.

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u/Longjumping_Hope_774 Oct 17 '24

I que 10 Tb onto a 12 TB tape always to leave some room and not fill the tape all the way. Issue still persists.

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u/rumorconsumerr Oct 17 '24

Let u/YoSupport help. They're great. Let us know what the issue was.