onyz2 box, unmirrored. Disk has problems with just a few files.

* onyx2:/ save: cannot stat
/usr/share/lib/perl5/site_perl/URI/file/FAT.pm: I/O error
* onyx2:/ save: cannot stat /usr/freeware/bin/perl5.6.1: I/O error
* onyx2:/ save: cannot stat /usr/freeware/lib/perl5/5.6.1
/irix-n32/auto/B/B.bs: I/O error
* onyx2:/ save: cannot stat /usr/freeware/lib/perl5/5.6.1
/irix-n32/auto/Sys/Syslog: I/O error
* onyx2:/ save: cannot stat /usr/freeware/lib/perl5/5.6.1
/irix-n32/auto/DynaLoader/DynaLoader.a: I/O error
* onyx2:/ save: cannot stat /usr/freeware/lib/perl5/5.6.1
/irix-n32/auto/DynaLoader/extralibs.ld: I/O error
* onyx2:/ save: cannot stat /usr/freeware/lib/perl5/5.6.1
/irix-n32/auto/DynaLoader/autosplit.ix: I/O error
* onyx2:/ save: cannot stat /usr/freeware/lib/perl5/5.6.1
/irix-n32/auto/NDBM_File: I/O error
* onyx2:/ save: cannot stat /usr/local/lib/perl5/site_perl/5.6.1: I/O
error

These are the only files that cause problems, and the files are not
used, so it does not matter, however the error shows up every day in
backups. I'd like to somehow delete/move/stamp up and down on these
files, but no matter what i do, I get i/o error, so I cant make these
files or the error go away. Box is running irix 6.5. any suggestions?