On Wed, Dec 05, 2001 at 07:35:32PM -0800, Dan Wilder wrote: > Maybe I missed your earlier post. > > What error messages are you seeing? > > What happens if you try just "dd"ing a big file to a tape > then reading it back in the same way, and checking > its integrity?
I can dd a file say 200MB and read it back and the md5sums match. when using amverify I get: Loading current slot... Using device /dev/scsi/host1/bus0/target15/lun0/mtn Volume MonthlySet101, Date 20011205 Checked set.ext.tsa._etc.20011205.0 Checked sobek.tsa._etc.20011205.0 Checked imhotep.ext.tsa._etc.20011205.0 Checked bart.tsa._home.20011205.0 Checked sothis.tsa._sothis_projects1.20011205.0 Checked sothis.tsa._etc.20011205.0 Checked sobek.tsa._sobek.20011205.0 Checked sothis.tsa._sothis_projects3.20011205.0 Checked imhotep.ext.tsa._imhotep.20011205.0 Checked set.ext.tsa._mnt_hdc1.20011205.0 End-of-Tape detected. Loading next slot... Using device /dev/scsi/host1/bus0/target15/lun0/mtn Volume MonthlySet102, Date 20011203 Checked hathor.tsa._hathor_httpd.20011203.0 ** Error detected (apophos.tsa._apophos.20011203.0) amrestore: WARNING: not at start of tape, file numbers will be offset amrestore: 0: restoring apophos.tsa._apophos.20011203.0 /bin/tar: Skipping to next header /bin/tar: Error exit delayed from previous errors 64+0 records in 64+0 records out Checked sothis.tsa._sothis_projects1.20011203.0 Checked hathor.tsa._hathor_projects4.20011203.0 ** Error detected (hathor.tsa._hathor_projects1.20011203.0) amrestore: WARNING: not at start of tape, file numbers will be offset amrestore: 0: restoring hathor.tsa._hathor_projects1.20011203.0 amrestore: read error: Input/output error /bin/tar: Unexpected EOF in archive /bin/tar: Error is not recoverable: exiting now 64+0 records in 64+0 records out ** Error detected () amrestore: error reading file header: Input/output error ** No header 0+0 records in 0+0 records out ** Error detected () amrestore: error reading file header: Input/output error ** No header 0+0 records in 0+0 records out ** Error detected () amrestore: error reading file header: Input/output error ** No header 0+0 records in 0+0 records out ** Error detected () amrestore: error reading file header: Input/output error ** No header 0+0 records in 0+0 records out Too many errors. as you can see the first tape went alright but then the second screwed up, these are both reasonably new tapes. but I also get this on our Daily set as well. it will be okay for two or three and then screw up like this for the next couple.
msg13168/pgp00000.pgp
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