Discussions related to exporting backups to tape and backing up directly to tape.
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Gandalf
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LTO-9 Tapes max. capacity 16,4 TB

Post by Gandalf »

Hello Forum,

i am new to disk-to-tape backups and have a question. We bought a MSL3040 and a few LTO-9 Tapes. On the cartridge it says 45 TB so i assumed that would be the maximum capacity. But in our Media Pool all tapes have the maximum capacity of 16,4 TB shown. So is this a normal behavior or am i missing something?

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Samba222
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Re: LTO-9 Tapes max. capacity 16,4 TB

Post by Samba222 » 5 people like this post

my opinion: LTO-9 has 18 TB native capacity -> its ~16,4 TiB
Mildur
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Re: LTO-9 Tapes max. capacity 16,4 TB

Post by Mildur » 3 people like this post

Hi Paul

What you see is to be expected. 16.4TiB is the physically available capacity on this tape. With enabled compression over the tape drive, you could write max 45TB of data to the tape. But Veeam backup files are already compressed. There is not much more more to compress when you write these backups to the tape. Therefore you will not be able to write 45TB of Veeam files.


Best,
Fabian
Product Management Analyst @ Veeam Software
Gandalf
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Re: LTO-9 Tapes max. capacity 16,4 TB

Post by Gandalf »

@Samba222 and @Mildur Thank you both for the clarification.
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