Backup stuck at 4Go
Hello,
When I try to backup my music folder, which is on an external HDD (formatted in exFat), the process stop systematically when it reaches 4Go.


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No I'm backuping to an internal HDD which is in NTFS
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My apologies, I misspoke. exFat does not have the file size limit of 4Go that is the fat32 filesystem having that limitation.
We see your issue most often when there is corruption on one of the disks involved. We recommend that chkdsk /r be run on all partitions on both drives to find and fix errors. This usually will fix the problem.
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Pierre, backup of exFAT filesystems is not listed in the ATI 2018 User Guide: Supported file systems
Supported file systems
- FAT16/32
- NTFS
- Ext2/Ext3/Ext4 *
- ReiserFS *
Note: ReiserFS partitions and disks cannot be backed up to Acronis Cloud.
- Linux SWAP *
* The Ext2/Ext3/Ext4, ReiserFS, and Linux SWAP file systems are supported only for disk or partition backup/recovery operations. You cannot use Acronis True Image 2018 for file-level operations with these file systems (file backup, recovery, search, as well as image mounting and file recovering from images). You also cannot perform backups to disks or partitions with these file systems.
If a file system is not supported or is corrupted, Acronis True Image 2018 can copy data using a sector-by-sector approach.
This would mean that the last paragraph above would apply and sector-by-sector mode would be used, which would try to backup the whole drive.
What is the size of the source drive and the size of the data on that drive?
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Thanx. chkdsk found some errors but couldn't solve them.
I think i'm going to format the HDD, then put a restore of my lastest backup and redo the updates I made yesterday on my music files.
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Pierre, if CHKDSK /R found errors and couldn't solve them, then I would recommend going to the drive makers support site and download any diagnostic tools provided to test the whole drive.
Dedicated diagnostic utilities from the disk manufacturers take the longest time to complete the checks, but provide the most accurate methods of checking whether the disk is good or needs replacement:
- Western Digital drives: Data Lifeguard Diagnostic for Windows
- Seagate disks: SeaTools for Windows
- HGST disks: HGST Windows Drive Fitness Test (WinDFT)
- Intel SSDs: Intel Solid State Drive Toolbox
- Samsung drives: Samsung Magician
- ADATA drives: ADATA SSD ToolBox
- Kingston SSDs: Kingston SSD Toolbox, Kingston SSD Manager
- Transcend SSDs: Transcend SSD Scope
- Silicon Power disks: SP ToolBox
- Toshiba disks: Toshiba PC Diagnostic Tool Utility
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My experience is that exFAT partitions do not support files greater than 4gig.
Ian
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Maximum file size limit:
Fat32 = 4GB
exFat = 16EB
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Clearly a seniors moment - just checked the drive and it is FAT not exFAT.
Ian
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