Re: Error -36 (i/o error, bad media?)

2001-03-01 Thread Irena Solomon

Hello,

Sometimes the Disk First Aid utility and even Norton can not detect the -36
error. 

Apple's Drive Setup does not do a "low level format" on IDE hard disks,
which means that bad blocks (-36 errors) will not be fixed by using the
format option in Drive Setup. Zero all data is also not helpful.

You should run the "test disk" option in Drive Setup. This will look for and
repair bad blocks (sector sparing as Apple calls it).

Apple's TIL entry for this error:

Type -36 error (I/O Errors) This file is having difficulty while
either reading from the drive or writing to the drive. The file may have
been improperly written data to the drive or the hard drive or disk may be
damaged. This is almost always indicative of a media error (hard error on
the disk). Sometimes (rarely) it is transient.

Solutions: Try copying the file to another drive. Use a disk recovery
software, such as Disk First Aid to examine the disk. You can try rebooting
with all extensions off. Once in a while this will allow you to read the
data. The file in question should be restored from a backup that was stored
on a different disk. Regular backups can reduce the time to recover from
this error.

Regards,

Irena Solomon
Dantz Technical Support
925.253.3050

Try our new Searchable Knowledgebase at:
http://partners.dantz.com:591/faq/


> From: Pam Lefkowitz <[EMAIL PROTECTED]>
> Subject: Re: Error -36 (i/o error, bad media?)
> 
> On 3/1/2001 7:37 AM, "Brian Caskey" wrote:
> 
>> The computer works great, except for this
>> little problem. Looking at the restore options, the snapshots look fine, and
>> I can restore files, even from the backups that are generating errors. But
>> still, I get this error every morning...and that makes me nervous.
> 
> Experience tells me that if Retrospect is saying there's a problem, then
> there's a problem. You might try running DiskWarrior on the drive. It
> frequently fixes things that Norton doesn't (you don't say what version of
> Norton you're using or what version of the OS is running, btw). Of course,
> just because the computer is new doesn't mean it's perfect. Sometimes even
> new stuff doesn't work (don't even get me started here...).
> 
> Also check the PowerDomain control panel to be sure the scsi cards are
> configured correctly.
> 
> It's also possible that your cables inside the computer aren't connected
> perfectly. You might want to reseat the ATA cable to the drive.
> 
> Just some thoughts,
> 
> Pam



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Re: Error -36 (i/o error, bad media?)

2001-03-01 Thread Pam Lefkowitz

On 3/1/2001 7:37 AM, "Brian Caskey" wrote:

> The computer works great, except for this
> little problem. Looking at the restore options, the snapshots look fine, and
> I can restore files, even from the backups that are generating errors. But
> still, I get this error every morning...and that makes me nervous.

Experience tells me that if Retrospect is saying there's a problem, then
there's a problem. You might try running DiskWarrior on the drive. It
frequently fixes things that Norton doesn't (you don't say what version of
Norton you're using or what version of the OS is running, btw). Of course,
just because the computer is new doesn't mean it's perfect. Sometimes even
new stuff doesn't work (don't even get me started here...).

Also check the PowerDomain control panel to be sure the scsi cards are
configured correctly.

It's also possible that your cables inside the computer aren't connected
perfectly. You might want to reseat the ATA cable to the drive.

Just some thoughts,

Pam



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Re: Error -36 (i/o error, bad media?)

2001-03-01 Thread David Ross

The drive where the shap shots are stored is full or corrupt. I had a
similar one a while back and it turned out the drive directory was all
messed up.

> Up until recently, I was running Retrospect 4.3 on a Power Mac 9600, and
> backing up servers and workstations (I work for a book publisher) to a
> Quantum DLT8000 tape drive. A few weeks ago, however, I got a brand new
> G4/466. It's a fairly standard setup (512MB RAM, 30GB IDE HD, Adaptec 2906
> SCSI card, Adaptec 2940UW card, Virex 5.9.1). However, as soon as I ran a
> backup, I began receiving client errors similar to the following
> 
> -2/28/2001 11:02:17 PM: Copying Susan McBride on Susan McBride
>  Couldn't write Snapshot, error -36 (i/o error, bad media?)
>  2/28/2001 11:22:11 PM: 1 execution errors
>  Completed: 2479 files, 1.7 GB
>  Performance: 85.2 MB/minute
>  Duration: 00:19:54 (00:00:13 idle/loading/preparing)
> 
> This happens both during normal and recycle backups, but not on all
> machines. Each computer generates a single error during the backup. In
> addition, I receive numerous errors on my G4 (940 of them this morning, as a
> matter of fact), similar to the following
> 
> -   Can't read file 3Macintosh HD:Applications (Mac OS 9):Acrobat Reader
> 4.0:Resource:CMap:AdobeFnt.lst2, error -36 (i/o error, bad media?).
> 
> These files, obviously, aren't getting backed up.
> 
> Norton Utilities doesn't show anything amiss on the hard drive, and I've run
> other utilities as well. I have dumped preferences, reinstalled Retrospect
> (along with the ADK v1.8 and Driver Update 2.1), swapped out media, and
> recreated my backup scripts. The computer works great, except for this
> little problem. Looking at the restore options, the snapshots look fine, and
> I can restore files, even from the backups that are generating errors. But
> still, I get this error every morning...and that makes me nervous.


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Error -36 (i/o error, bad media?)

2001-03-01 Thread Brian Caskey

Hello,

I've used Retrospect successfully for many years with no significant
problems. Here's one that has me scratching my head, though.

Up until recently, I was running Retrospect 4.3 on a Power Mac 9600, and
backing up servers and workstations (I work for a book publisher) to a
Quantum DLT8000 tape drive. A few weeks ago, however, I got a brand new
G4/466. It's a fairly standard setup (512MB RAM, 30GB IDE HD, Adaptec 2906
SCSI card, Adaptec 2940UW card, Virex 5.9.1). However, as soon as I ran a
backup, I began receiving client errors similar to the following


-2/28/2001 11:02:17 PM: Copying Susan McBride on Susan McBride
 Couldn't write Snapshot, error -36 (i/o error, bad media?)
 2/28/2001 11:22:11 PM: 1 execution errors
 Completed: 2479 files, 1.7 GB
 Performance: 85.2 MB/minute
 Duration: 00:19:54 (00:00:13 idle/loading/preparing)


This happens both during normal and recycle backups, but not on all
machines. Each computer generates a single error during the backup. In
addition, I receive numerous errors on my G4 (940 of them this morning, as a
matter of fact), similar to the following


-   Can't read file ³Macintosh HD:Applications (Mac OS 9):Acrobat Reader
4.0:Resource:CMap:AdobeFnt.lst², error -36 (i/o error, bad media?).


These files, obviously, aren't getting backed up.

Norton Utilities doesn't show anything amiss on the hard drive, and I've run
other utilities as well. I have dumped preferences, reinstalled Retrospect
(along with the ADK v1.8 and Driver Update 2.1), swapped out media, and
recreated my backup scripts. The computer works great, except for this
little problem. Looking at the restore options, the snapshots look fine, and
I can restore files, even from the backups that are generating errors. But
still, I get this error every morning...and that makes me nervous.

Any ideas?

Brian

-- 

Brian Caskey
IS Administrator

Lark Books
50 College St.
Asheville, NC 28801

PHN: (828) 253-0467
FAX: (828) 253-7952




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