LTO-8 Library and Linear Tape File System

Hi, was wondering if the group here can help guide me in the right direction:

1) I have 75-100 TB’s of data than I need to keep online or near-line.

2) These data sets do not change and seldom deleted

3) Currently, we are storing them in a large RAID 6 array, and have a duplicate array for backup

4) My worry is both array’s will fail leading to data loss

Is there a way to access a LTO-8 library like it’s a hard drive? We don’t need super high speed access since we can copy the data sets as we use them to local harddrives.

I don’t know too much about LTO tape libraries, but was thinking this will be a good use of tape storage.

Thanks!

Tagged: LTO Tape

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Viewing 3 replies - 1 through 3 (of 3 total)

tohoko

Participant

April 28, 2026 at 9:37 am

What you’re describing is actually a perfect use case for LTO. Large, mostly static datasets with infrequent access are exactly what tape is designed for. With Linear Tape-Open, you can move away from keeping everything spinning 24/7 and reduce both risk and cost.

vevih

Participant

April 28, 2026 at 9:34 am

You can access LTO like a filesystem using LTFS, but it’s not the same as a hard drive. It’ll feel more like very slow external storage with high latency, especially when seeking files. If your workflow involves copying datasets locally before use, though, that limitation probably won’t be a dealbreaker.

This reply was modified 1 month ago by vevih.

Jace Elric

Participant

February 27, 2026 at 6:00 am

For 75–100TB of data that rarely changes and only needs near-line access, moving from dual RAID 6 arrays to an LTO-8 tape setup is a practical and safer long-term option. LTO-8 provides 12TB native capacity per cartridge, so the entire archive would fit on fewer than a dozen tapes, with the option to create a second set for offsite storage. Using Linear Tape File System, each tape can be mounted like a large removable drive, letting you browse folders and copy datasets to local storage when needed. Although tape is slower than disk for random access, it works well for large, infrequently accessed archives. Unlike RAID, offline tape copies are not exposed to ransomware, power surges, controller failures, or simultaneous array loss, making them a more reliable choice for long-term retention of static data.

Viewing 3 replies - 1 through 3 (of 3 total)