du...@dustymabe.com claimed:
[dustymabe@localhost traces]$ sha256sum SEQ_LBM.t.gz
/mnt/SEQ_LBM.t.gz.uncompressed
017b3456df8e658e2e50ff3f33ca66ce11eb91b59abfd6c3d259502b53951608 SEQ_LBM.t.gz
ca07c3604b104631bf377cac62537a40bd79be1c3971a23e7605843d5c588e72
/mnt/SEQ_LBM.t.gz.uncompressed
When I download
https://www.dropbox.com/s/mebey21eynzt1lq/SEQ_LBM.t.gz?dl=0
and apply the steps indicated by the filename suffixes, then I get:
-----
$ ls -l SEQ*
-rw-rw-r--. 1 user group 203147157 Jan 4 20:31 SEQ_LBM.t.gz
-rw-rw-r--. 1 user group 2378387197 Jan 4 20:33 SEQ_LBM.t.gz.unc
-rw-rw-r--. 1 user group 40216616 Jan 4 20:59 SEQ_LBM.t.gz.unc.xz
-rw-rw-r--. 1 user group 2378387197 Jan 4 21:08 SEQ_LBM.t.gz.unc.xz.unc
$ sha256sum SEQ*
6b3f65630cd76562279cdd43cc185975f8ec28ecee5728fccac25bf1bec65cd4 SEQ_LBM.t.gz
ca07c3604b104631bf377cac62537a40bd79be1c3971a23e7605843d5c588e72
SEQ_LBM.t.gz.unc
48b89e59462ec1336b9c9d7930f19065ee6a08a7898eb1fce2f6adfe4e0bb276
SEQ_LBM.t.gz.unc.xz
ca07c3604b104631bf377cac62537a40bd79be1c3971a23e7605843d5c588e72
SEQ_LBM.t.gz.unc.xz.unc
$ xz --version # xz-5.1.2-4alpha.fc19.x86_64
xz (XZ Utils) 5.1.2alpha
liblzma 5.1.2alpha
-----
Note the difference in sha256sum between your SEQ_LBM.t.gz and mine,
but the equality in sha256sum on SEQ_LBM.t.gz.unc. Dropbox did not give me
the same file as you claim to have uploaded, yet "gzip -d" very probably
gives me the same result as your SEQ_LBM.t.gz.unc.
I also performed everything twice (including download), and got the same
results.
So I trust my hardware [and software], but yours looks suspicious to me.
Have you considered the possibility of hardware error?
What is the age of the CPU and mainboard? How much RAM?
When was the last time you ran memtest86+ for at least 8 hours?
What does smartctl say about the health of your disk drives?
