[Info-vax] Backup verify problems

[gsdguy]

I am getting backup verify errors and I don’t know why. I hope someone
can explain what is happening.

I had a disk and tape drive failure and restore the disk from a backup
tape ( I bought a new DAT tape drive). I decided to start using the /
verify switch when I do backups. When I did my first backup to tape
with /verify I got verify errors like the ones shown below.

%BACKUP-E-VERIFYERR, verification error for block 31 of DUA2:[LEROY]
MAIL.MAI;1
%BACKUP-E-VERIFYERR, verification error for block 32 of DUA2:[LEROY]
MAIL.MAI;1
%BACKUP-E-VERIFYERR, verification error for block 33 of DUA2:[LEROY]
MAIL.MAI;1
%BACKUP-E-VERIFYERR, verification error for block 34 of DUA2:[LEROY]
MAIL.MAI;1
%BACKUP-E-VERIFYERR, verification error for block 35 of DUA2:[LEROY]
MAIL.MAI;1
%BACKUP-E-VERIFYERR, verification error for block 36 of DUA2:[LEROY]
MAIL.MAI;1

I created a disk backup saveset and got the same verify errors. I
checked the error log for any hardware errors and there were no
errors. I then restored one of the files that had verify errors to
another disk and did a difference between the original file and the
restored file. The difference program said that there was no
difference between the two files. I also did an analyze/disk on the
disk drive and there are not errors.

Can someone explain what is going on? How can I get rid of these
verify errors? Thank you.