Multiple errors of kind: "Caught I/O exception(5): Input/output error"

[amagjo]

Over the course of about 20GB of copying (backup failed after 20GB of an 80GB backup...see last 2 entries of log) about 30 other files followed a "WARNING-Attempting to copy-Copied" scenario (see log below). Is this normal and could this be why I'm getting a .4MB/sec copy time over a wirelessly attached network drive? (I think the Buffalo LinkStation Pro may be inherently slow as well.) Regarding the last 2 log entries where the backup failed, I added a script to ignore the [[userfolder]/Library/Caches/DEVONagent/Pages]path. Can you confirm this is the proper solution to the backup failure? Thanks for your help.

A side question: Is it OK to use the computer (such as using a word processing program or browsing the internet or watching a quicktime movie) while SuperDuper is running, that is, performing a backup ?
PS: Replace some info with [[name]]

Log pasted below:

| 05:27:30 PM | Info | SuperDuper!, 2.1.4 (82), path: /Applications/SuperDuper!.app, Mac OS 10.4.8 build 8L127 (ppc)
| 05:27:30 PM | Info | Started on Mon, Jun 11, 2007 at 5:27 PM
| 05:27:30 PM | Info | Source Volume: MacHD, mount: /, device: /dev/[diskname], media: FUJITSU MHT2080AT, interconnect: Internal ATA, file system: "Journaled HFS+", OS: 10.4.8 (8L127), capacity: 74.40 GB, used: 73.73 GB, directories: 113397, files: 505919, ejectable: NO, ACLs: Disabled
| 05:27:30 PM | Info | Target Image: /Volumes/SHARE/MY ARCHIVE (initial full backup followed by removal only of items to be left on laptop)/MY ARCHIVE DISK IMAGE.sparseimage, name: MY ARCHIVE DISK IMAGE
| 05:27:30 PM | Info | Copy Mode : Erase, then copy files
| 05:27:30 PM | Info | Copy Script : Backup - all files.dset
| 05:27:30 PM | Info | Transcript : BuildTranscript.plist
| 05:27:30 PM | Info | PHASE: 1. Prepare to Copy Files
| 05:27:30 PM | Info | ...ACTION: Preparing MacHD
| 05:27:30 PM | Info | ......COMMAND => Verifying the integrity of volinfo.database
| 05:27:31 PM | Info | volinfo.database OK
| 05:27:31 PM | Info | ......COMMAND => Enabling permissions on MacHD
| 05:27:31 PM | Info | Refreshing Disk Arbitration ...
| 05:27:31 PM | Info | ......COMMAND => Verifying that permissions are enabled for MacHD
| 05:27:31 PM | Info | Permissions on '/' are enabled.
| 05:27:31 PM | Info | ...ACTION: Repairing permissions on MacHD
| 05:27:31 PM | Info | ......COMMAND => Repairing permissions on MacHD
| 05:27:38 PM | Info | parent directory ./Users/Shared/SC Info does not exist
| 05:28:14 PM | Info | Started verify/repair permissions on disk disk0s3 MacHD
| 05:28:14 PM | Info | Determining correct file permissions.
| 05:28:14 PM | Info | Permissions differ on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents/MacOS/InternetUtilities, should be -rw-rw-r-- , they are -rwxrwxr-x
| 05:28:14 PM | Info | Owner and group corrected on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents/MacOS/InternetUtilities
| 05:28:14 PM | Info | Permissions corrected on ./Applications/iTunes.app/Contents/Frameworks/InternetUtilities.bundle/Contents/MacOS/InternetUtilities
| 05:28:14 PM | Info | User differs on ./Library/Widgets, should be 0, owner is 501
| 05:28:14 PM | Info | Owner and group corrected on ./Library/Widgets
| 05:28:14 PM | Info | Permissions corrected on ./Library/Widgets
| 05:28:14 PM | Info | The privileges have been verified or repaired on the selected volume
| 05:28:14 PM | Info | Verify/repair finished permissions on disk disk0s3 MacHD
| 05:28:14 PM | Info | ...ACTION: Mounting MY ARCHIVE DISK IMAGE
| 05:28:14 PM | Info | ......COMMAND => Preparing MY ARCHIVE DISK IMAGE
| 05:29:09 PM | Info | created: /Volumes/SHARE/MY ARCHIVE (initial full backup followed by removal only of items to be left on laptop)/MY ARCHIVE DISK IMAGE.sparseimage
| 05:29:09 PM | Info | ......COMMAND => Setting ownership and access modes for '/Volumes/SHARE/MY ARCHIVE (initial full backup followed by removal only of items to be left on laptop)/MY ARCHIVE DISK IMAGE.sparseimage'
| 05:29:09 PM | Info | ......COMMAND => Mounting MY ARCHIVE DISK IMAGE
| 05:29:12 PM | Info | ...ACTION: Erasing MY ARCHIVE DISK IMAGE
| 05:29:12 PM | Info | ......COMMAND => Preserving MY ARCHIVE DISK IMAGE UUID
| 05:29:13 PM | Info | AE75E06E8CFC6284
| 05:29:13 PM | Info | ......COMMAND => Preserving spotlight indexing state
| 05:29:13 PM | Info | ......COMMAND => Erasing MY ARCHIVE DISK IMAGE
| 05:29:35 PM | Info | ......COMMAND => Restoring MY ARCHIVE DISK IMAGE UUID (SDUUID.hexString)
| 05:29:35 PM | Info | AE75E06E8CFC6284
| 05:29:35 PM | Info | ......COMMAND => Restoring Spotlight search indexing state on MY ARCHIVE DISK IMAGE
| 05:29:35 PM | Info | ...ACTION: Preparing MY ARCHIVE DISK IMAGE
| 05:29:35 PM | Info | ......COMMAND => Enabling permissions on MY ARCHIVE DISK IMAGE
| 05:29:36 PM | Info | Refreshing Disk Arbitration ...
| 05:29:36 PM | Info | ......COMMAND => Verifying that permissions are enabled for MY ARCHIVE DISK IMAGE
| 05:29:36 PM | Info | Permissions on '/Volumes/MY ARCHIVE DISK IMAGE' are enabled.
| 05:29:36 PM | Info | ......COMMAND => Verifying that MY ARCHIVE DISK IMAGE ACL support matches MacHD
| 05:29:36 PM | Info | ...ACTION: Preserving Spotlight state on MY ARCHIVE DISK IMAGE
| 05:29:36 PM | Info | ......COMMAND => Disabling Spotlight search indexing on MY ARCHIVE DISK IMAGE
| 05:29:36 PM | Info | PHASE: 2. Copy Files
| 05:29:36 PM | Info | ...ACTION: Copying files from MacHD to MY ARCHIVE DISK IMAGE
| 05:29:36 PM | Info | ......COMMAND => Cloning MacHD to MY ARCHIVE DISK IMAGE
| 05:29:36 PM | Info | Copying copy files using script: /Users/[userfolder]/Library/Application Support/SuperDuper!/Copy Scripts/Standard Scripts/Backup - all files.dset
| 05:29:36 PM | Info | Loading 21 commands from copy script /Applications/SuperDuper!.app/Contents/Resources/Copy Scripts/Exclude system temporary files.dset
| 05:29:36 PM | Info | Loading 6 commands from copy script /Applications/SuperDuper!.app/Contents/Resources/Copy Scripts/Exclude system cache files.dset
| 05:29:36 PM | Info | Loading 1 commands from copy script /Applications/SuperDuper!.app/Contents/Resources/Copy Scripts/Exclude Norton FileSaver files.dset
| 05:29:36 PM | Info | Loading 2 commands from copy script /Applications/SuperDuper!.app/Contents/Resources/Copy Scripts/Exclude Spotlight search index.dset
| 05:29:36 PM | Info | Loading 0 commands from copy script /Users/[userfolder]/Library/Application Support/SuperDuper!/Copy Scripts/Standard Scripts/Backup - all files.dset
| 05:29:36 PM | Info | /
| 05:29:39 PM | Info | /Volumes
| 05:29:39 PM | Info | Ignoring /Volumes/MY ARCHIVE DISK IMAGE
| 05:29:39 PM | Info | Ignoring /Volumes/SHARE
| 05:29:39 PM | Info | Ignoring /Volumes/MacHD
| 05:29:48 PM | Info | /sbin
| 05:29:51 PM | Info | /System
| 05:42:56 PM | Info | WARNING: Caught I/O exception(5): Input/output error
| 05:42:56 PM | Info | WARNING: Source: /System/Library/CoreServices/SystemUIServer.app/Contents/MacOS/SystemUIServer, lstat(): 0
| 05:42:56 PM | Info | WARNING: Target: /Volumes/MY ARCHIVE DISK IMAGE/System/Library/CoreServices/SystemUIServer.app/Contents/MacOS/SystemUIServer, lstat(): 0
| 05:42:56 PM | Info | Attempting to copy file using copyfile().
| 05:42:56 PM | Info | Attempting to copy file using ditto.
| 05:42:56 PM | Info | Successfully copied file.

...[about 30 other files followed this "WARNING-Attempting to copy-Copied" scenario here; then log continues]...

| 01:18:37 AM | Info | WARNING: Caught I/O exception(5): Input/output error
| 01:18:37 AM | Info | WARNING: Source: /Users/[userfolder]/Documents/latest desktop/untitled folder 2/Dine-O-Matic.wdgt/Sounds/Neon.aif, lstat(): 0
| 01:18:37 AM | Info | WARNING: Target: /Volumes/MY ARCHIVE DISK IMAGE/Users/[userfolder]/Documents/latest desktop/untitled folder 2/Dine-O-Matic.wdgt/Sounds/Neon.aif, lstat(): 0
| 01:18:37 AM | Info | Attempting to copy file using copyfile().
| 01:18:37 AM | Info | Attempting to copy file using ditto.
| 01:18:37 AM | Info | Successfully copied file.
| 02:11:22 AM | Error | SDCopy: Error "Invalid argument" encountered while setting HFS meta data for /Volumes/MY ARCHIVE DISK IMAGE/Users/[userfolder]/Library/Caches/SEARCHagent/Pages/answers.shopping.com/xDN-cellular_accessories-wireless-ma_phone_manufacturer_motorola-PG-50 of type: 8
| 02:11:22 AM | Error | : Invalid argument