Compressed VHD file BAT table overflow

1

Hello,

As my first backup with UrBackup, I made a full image backup from Windows to a server running the Docker image on Linux and then the next hour it started another one that seemed to replace the old backup. I think the cause may be because I had my backup window set to 1-7/0-24 and full image backup minimum and maximum both set to 1. It seemed to delete the old backup from the web UI - it is no where to be found in there, but it is still on disk. Is there a way to get it to show in the web UI once again? Also, will it be cleaned up during the next scheduled cleanup, or is this a bug?

2

Looks like the logs are helpful – they mention the VHD file not having enough room in the BAT:

Errors 08/20/24 07:56 FATAL: Error writing to VHD-File. No such file or directory (code: 2)
Errors 08/20/24 07:56 FATAL ERROR: Could not write to VHD-File
Errors 08/20/24 07:56 Backup failed

2024-08-20 07:56:16: ERROR: Too much data in VHD file. BAT table overflow. Next BAT entry would be to offset 4294967430
2024-08-20 07:56:16: Retrying writing to VHD file…
2024-08-20 07:56:16: ERROR: Too much data in VHD file. BAT table overflow. Next BAT entry would be to offset 4294968456
2024-08-20 07:56:16: Writing to VHD file failed
2024-08-20 07:56:16: Retrying writing to VHD file…
2024-08-20 07:56:16: ERROR: Too much data in VHD file. BAT table overflow. Next BAT entry would be to offset 4294969482
2024-08-20 07:56:16: Writing to VHD file failed
2024-08-20 07:56:17: Retrying writing to VHD file…
2024-08-20 07:56:17: ERROR: Too much data in VHD file. BAT table overflow. Next BAT entry would be to offset 4294970508
2024-08-20 07:56:17: Writing to VHD file failed
2024-08-20 07:56:17: ERROR: FATAL: Error writing to VHD-File. No such file or directory (code: 2)
2024-08-20 07:56:17: ERROR: FATAL ERROR: Could not write to VHD-File
2024-08-20 07:56:17: Transferred 1.37078 TB - Average speed: 820.005 MBit/s

3

If you have it set to keep a maximum of 1, then it will always replace the old one with a new one… Make is more like a max of 4 or 5 so you’ll have some history. The de-duplication will keep the total file size down.

Wanna see the Web UI again? Then check the port number you put it on.

http://x.x.x.x:55414 where x.x.x.x is IP address of your server. I think port 55414 is default as I don’t remember changing it.