[nflug] tape drive problems (scsi)

[Mark Musone]

    To figure out a tape's actual block size try:

     1). Set the tape to variable block size.
     2). "dd if=<tape> of=/tmp/dummy bs=128k count=1"
     3). "ls -l /tmp/dummy"
     4). The number of bytes in "/tmp/dummy" is the physical block size.



-----Original Message-----
From: nflug-bounces at nflug.org [mailto:nflug-bounces at nflug.org] On Behalf Of
Cyber Source
Sent: Friday, May 05, 2006 9:30 AM
To: nflug at nflug.org
Subject: Re: [nflug] tape drive problems (scsi)

I haven't set a block size because I don't know how and didn't want to 
just "play" with it, can you give some example (with explanation), that 
would be great. File system is ext3 (under LVM). I have not fsck'd it 
lately.

Darin Perusich wrote:
> have you tried setting a different block size? the filesystem itself 
> could also be causing the problem, have you fsck'd it? what about 
> using dump instead of tar, unless it's a reiserfs then you need to use 
> tar.
>
> Cyber Source wrote:
>> After writing zeros to the tape yesterday, the backup last night 
>> worked fine. Here is another clue that logwatch spits out, might be a 
>> clue as to what is wrong. I still think it's something with block 
>> size, anyone have a clue?
>
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