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  #1  
Old 08-22-2006, 05:11 PM
Zed Zed is offline
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I/O error while backing up

Hello!

I'm trying to back up my MacBook hard drive to an external drive via SuperDuper! but it fails to copy everytime, saying it's unable to copy a certain file (which is different every time).

I searched this support forum for a solution and decided do "zero" the external hard drive, without success.

I asked help in another Mac forum and I realised my partition scheme wasn't "GUID_partition_scheme" so I fixed that and tried again... and I'm still unable to complete a backup.

So I'm back here, aking directly for help this time

Is there a way to know if it's a hardware problem?

Me external hard drive is a 250 GB Seagate in a NexStar3 USB/FW enclosure. I used the Firewire interface to backup.

Thanks!

Luc
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  #2  
Old 08-22-2006, 07:41 PM
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dnanian dnanian is offline
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Hi, Luc. If the file is different every time, it's likely that you're having interface issues (hardware). You can see what device is causing problems by looking at the system.log -- it'll indicate an I/O error with a device ID (something like "disk2s1") that you can then match with disks listed with either Disk Utility or System Profiler.

My guess is that it's the NexStar3 controller. I'd try the USB interface to see if that behaves better...
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  #3  
Old 08-22-2006, 10:46 PM
Zed Zed is offline
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USB interface tried, and made its proofs.

I backed up all my MacBook drive without any problem.

So, doctor, what is your diagnosis?

I'll try to backup again with FW, and post my log here if you need it.

Thanks!

Luc

Last edited by Zed; 08-22-2006 at 10:48 PM.
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  #4  
Old 08-23-2006, 08:45 AM
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My diagnosis is that it's likely that this is a non-Oxford based drive, and isn't fully compatible with OS X on its Firewire end...
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  #5  
Old 08-23-2006, 03:12 PM
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Here is how it goes :

| 02:51:18 PM | Info | WARNING: Caught I/O exception(2): No such file or directory
| 02:51:18 PM | Info | WARNING: Source: /Library/Documentation/Help/MacHelp.help/Contents/Resources/Spanish.lproj/pgs/mh1138.html, lstat(): 0
| 02:51:18 PM | Info | WARNING: Target: /Volumes/Backup MacBook B/Library/Documentation/Help/MacHelp.help/Contents/Resources/Spanish.lproj/pgs/mh1138.html, lstat(): -1
| 02:51:18 PM | Info | Attempting to copy file using copyfile().
| 02:58:54 PM | Info | Successfully copied file.
| 03:06:30 PM | Error | SDCopy: Error "Input/output error" encountered while setting HFS meta data for /Volumes/Backup MacBook B/Library/Documentation/Help/MacHelp.help/Contents/Resources/Spanish.lproj/pgs/mh1138.html of type: 8
| 03:06:31 PM | Error | : Input/output error

Again, with a different file.

I was sure It'd be ok this time... backup was almost finished.

Does the diagnosis still stands?
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  #6  
Old 08-23-2006, 03:14 PM
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Was this with FireWire? If so, yes, diagnosis still stands.
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  #7  
Old 08-23-2006, 03:28 PM
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Quote:
Originally Posted by dnanian View Post
Was this with FireWire? If so, yes, diagnosis still stands.
Yes, it was with FireWire.

I'll call the shop where I bought the HD and the enclosure to see what they can do for me. They sell Macs and were aware of my needs before selling that stuff to me.

Thanks for your precious help.

Luc
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  #8  
Old 08-23-2006, 04:10 PM
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My pleasure, Luc. Make sure to get an enclosure that has a true Oxford chipset in it...
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  #9  
Old 08-23-2006, 04:33 PM
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Searched a little for the oxford thing in the system profiler and found nothing.

But I found that (yes, my OS is in french):

Bus FireWire :

Vitesse maximum : Jusqu’à 400 Mb/s


ST3250820A :

Fabricant : Initio
Modèle : 0x540
GUID : 0x101005007777D2
Vitesse maximum : Jusqu’à 400 Mb/s
Vitesse de connexion : Jusqu’à 400 Mb/s


Sous-unités :
ST3250820A Unit :
Version du logiciel de l’unité : 0x10483
Identifiant de l’unité : 0x609E
Révision du programme interne : 0x223
Niveau de révision du produit : 2.23

Sous-unités :
ST3250820A SBP-LUN :
Capacité : 232.89 Go
Support amovible : Oui
Nom BSD : disk1
Gestionnaires OS9 : Non
État S.M.A.R.T. : Non géré

Volumes :
Backup MacBook A :
Capacité : 74.88 Go
Disponible : 49.42 Go
Inscriptible : Oui
Système de fichiers : Journaled HFS+
Nom BSD : disk1s2
Point de montage : /Volumes/Backup MacBook A
Backup MacBook B :
Capacité : 74.88 Go
Disponible : 51.78 Go
Inscriptible : Oui
Système de fichiers : Journaled HFS+
Nom BSD : disk1s3
Point de montage : /Volumes/Backup MacBook B
Autre :
Capacité : 82.57 Go
Disponible : 82.52 Go
Inscriptible : Oui
Système de fichiers : Journaled HFS+
Nom BSD : disk1s4
Point de montage : /Volumes/Autre


I guess that I should have found something like "OXFORD IDE Device 1:" instead of "ST3250820A Unit :" if it was an Oxford drive...

So I guess the extra I paid for the FireWire interface is now worth nothing :/
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  #10  
Old 08-23-2006, 04:58 PM
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Actually, here's where it says who did it:

Fabricant : Initio

So, it's an Initio chipset, not Oxford...
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