Comments (5)
The setting you want to modify is tapetype { blocksize
setting as it defaults to 32KB.
Try setting it lower maybe? I use 1MB on my LTO5 but LTO2 is tiny in comparison.
define tapetype LTO2 {
blocksize 24 kbytes
}
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I've tried a few different blocksize settings. None had an impact. The config I provided above just happened to not contain a blocksize.
Despite the history, I just tried a blocksize of 64 kybtes. Same problem
define tapetype LTO2-200 {
comment "LTO Ultrium2 200/400"
length 400000 mbytes
blocksize 64 kbytes
speed 20570 kps
}
Error:
FAILURE DUMP SUMMARY:
hostname / lev 0 partial taper: Error writing block: Short write on tape device: Tried 65536, got 9216. Is the drive using a block size smaller than 65536 bytes?
Thanks anyway,.
from amanda.
Could it be you have a problem with the hardware or BSD? Have you tried to write using tar to the tape device?
from amanda.
Oh yeah if you haven't tested manually: position the drive with mt
, write some data to it (ex tar or dd, does not need to be a tape aware program for less than full tape writes), rewind with mt, read and verify the written data.
from amanda.
It could FBSD, but the issue still seems specific to AMANDA. Prior to opening this Issue, I successfully wrote/retrieved via dd, dump, gnutar, and bsdtar. The LTO drive was replaced, and produces the exact same error. I briefly considered the SCSI card, but there's zero evidence its having a problem. I've been successfully using tar as a mitigation measure since this issue began.
Nothing in the system reports problems. There's never anything relevant in dmesg, or any system logs. My current hunch is the OS is causing this. Same setup ran successfully on FBSD 12.x. This seems to start with FBSD 14.x. I haven't received response from the FBSD community. There doesn't seem to be many AMANDA users in that community. FWIW, I've been using AMANDA for over 25 years, and have never encountered a problem like this.
from amanda.
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