Re: Error -36 (i/o error, bad media?)
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. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
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 -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: Error -36 (i/o error, bad media?)
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 -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
