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LT05 Unarchive Tape Error

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Luke Allen
LT05 Unarchive Tape Error
on May 23, 2019 at 2:01:59 pm
Last Edited By Luke Allen on May 24, 2019 at 9:59:14 am

(Apologize for a double post, but I posted this in the wrong forum, in Storage)

Howdy folks, long time reader, first time poster! Be gentle!!!

I have an LT05 tape that is causing me some issues and I was wondering if anyone here has any suggestions on how to fix?

I'm unarching a tape, which runs fine, untill it gets to a single file, which causes the tape to error and quit. The tape has around 1.3 TB of data, but crashes out after restoring just a few hundred GBs

Here is the last few lines of my logs

...
-rwxrwxrwx tech/domain users 42813440 2015-02-05 22:23:00 mnt/vol1/work/2014_Active/691_REDACTED_IDENTITY/_DELIVERY/MASTER/v002/691_RDI_15_4K/691_RDI_15_4K_00021.dpx
-rwxrwxrwx tech/domain users 85651205 2015-02-05 22:23:00 mnt/vol1/work/2014_Active/691_REDACTED_IDENTITY/_DELIVERY/MASTER/v002/691_RDI_15_4K/691_RDI_15_4K_00021.exr
-rwxrwxrwx tech/domain users 42813440 2015-02-05 22:23:03 mnt/vol1/work/2014_Active/691_REDACTED_IDENTITY/_DELIVERY/MASTER/v002/691_RDI_15_4K/691_RDI_15_4K_00022.dpx
-rwxrwxrwx tech/domain users 85651205 2015-02-05 22:23:02 mnt/vol1/work/2014_Active/691_REDACTED_IDENTITY/_DELIVERY/MASTER/v002/691_RDI_15_4K/691_RDI_15_4K_00022.exr
dd: reading `/dev/nst0': Input/output error
0+75720 records in
0+75720 records out
39699087360 bytes (40 GB) copied, 285.675 seconds, 139 MB/s
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now

I also have a script I usually use for archiving and unarchiving and it says

usr/local/archive/tar: /dev/nst0: Cannot read: Input/output error
/usr/local/archive/tar: Too many errors, quitting
/usr/local/archive/tar: Error is not recoverable: exiting now
tar error 2

I've tried options such as

--exlude - Excluding the issue file type
--ignore zerod
-i
--ignore-command-error
But everytime they hit the bad file, it stops.


Is it possible to skip problematic files on LTO? Is there a way of recovering the rest of the tape? Any suggestions would be greatly appreciated.


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