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LinearTapeFileSystem / ltfs

Reference implementation of the LTFS format Spec for stand alone tape drive
BSD 3-Clause "New" or "Revised" License
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LTO/LTFS wear parameters #488

Open 642583918 opened 1 week ago

642583918 commented 1 week ago

I found two parameters about wear in LTO SCSI documentation, namely "Begining of medium passes" and "Middle of tape passes".

But I wrote the entire tape and found that there was no change in these two parameters.

sg_logs -a /dev/xxx | grep passes

Regarding wear, are there any problems with the two parameters I observed? If so, does LTO provide other wear parameters?

piste-jp commented 1 week ago

You can fetch the log page with VEA ltfs.vendor.IBM.logPage while tape is mounting by LTFS.

Please check the code src/libltfs/xattr.c.

Counter value itself is not a scope of this project, it shall be managed by H/W vendors. Please contact to drive hardware vendors if you rally think the value is strange.