Std Full+Inc backup scheme, started failing to TrueNas storage
I've a Win 11 PC, with 8TB SSD, backing up using latest CyberProtect to NAS over Gigabit local Network.
Has worked fine for weeks, Full backups every 10 days or so (3.6TB) and then incrementals daily (~40Gb).
Suddenly started reporting network connection failed, but whenever it is tested, it connects just fine to TrueNAS share (Samba).
I renamed target folder, started again, full backup OK over ~24hrs, then first 6 incrementals worked... and then failing again with same.
I've changed to try Differential, and its now been chugging for hours OK... but obviously taking longer and mode disk space... is there any know bugs or limitations with use of NAS for such large backups?
Should I try the options for splitting the archives?


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Ich konnte bisher alle Probleme mit einem abbrechenden Backup zum NAS lösen, indem ich das NAS neu starte und danach das Backup mit "Backup jetzt" starte.
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So far I have been able to solve all problems with a backup to the NAS aborting by restarting the NAS and then starting the backup with "Backup now".
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Thanks for constructive feedback guys. Thinking about it... it did indeed work for a week or so after restarting the NAS. I even updated it to latest stable trueNAS release, but does not seem to have helped.
Last backup (Diff + Full [every 5d]) ran, and created the 3.6Tb full backup fine, but the GUI showed error... seems error actually related to todays scheduled Diff run + re-attempt (as full backup ran over the 24hrs).
Seems that the system should know an existing backup is in progress, and close the new backup request with suitable error rather than report a NAS connection failed. Assume it is unable to get a file lock on the full .TIB file and reporting that as error.
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Hello Dave!
Please check the following solutions:
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Verify network connectivity: Ensure that the network connection between your Win 11 PC and the TrueNAS share is stable and reliable. Check for any network configuration changes, firewall settings, or other factors that could affect the connection.
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Check NAS compatibility: Confirm that your NAS device is compatible with Acronis Cyber Protect Home. Refer to the product documentation or reach out to Acronis support to ensure that there are no known compatibility issues.
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Update Acronis Cyber Protect Home: Make sure that you have the latest version of Acronis Cyber Protect Home installed on your Win 11 PC. Check for any available updates and apply them if necessary.
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Splitting archives: If the issue persists, you can try splitting the backup archives into smaller parts. This can help reduce the load on the network and potentially improve the backup process. Acronis Cyber Protect Home usually provides options for splitting archives during the backup configuration. Experiment with different splitting sizes to find the optimal balance between backup duration and disk space usage. https://www.acronis.com/en-us/support/documentation/ATI2023/#3418.html?…
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Monitor system resources: Large backups, especially with frequent incrementals, can be resource-intensive. Monitor your system's CPU, RAM, and disk usage during the backup process to ensure that they are not being overwhelmed. If necessary, consider allocating more system resources or optimizing other processes running concurrently.
If the issue persists, please raise a ticket with our support: https://kb.acronis.com/content/8153
Thanks.
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Thanks,
- Network is fine to NAS.. it via local D-Link managed switch which is working fine and not dropping packets or getting collisions.
- TrueNAS is a fairly industry standard NAS and is working fine for other PC on network (much smaller disks), No real option to change it.
- Acronis CP is fully up to date
- I may try this, and advise
- System resources seem OK. PC being backed up as 12 HT cores, 32Gb Ram, so plenty free resource.
I left it running over weekend doing differentials, and so far they have worked (apart from the one that attempted to run while the first full image one was still finishing up).
Will raise a ticket as suggested if problems continue.
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Dave Hogg wrote:Thanks,
- Network is fine to NAS.. it via local D-Link managed switch which is working fine and not dropping packets or getting collisions.
- TrueNAS is a fairly industry standard NAS and is working fine for other PC on network (much smaller disks), No real option to change it.
- Acronis CP is fully up to date
- I may try this, and advise
- System resources seem OK. PC being backed up as 12 HT cores, 32Gb Ram, so plenty free resource.
I left it running over weekend doing differentials, and so far they have worked (apart from the one that attempted to run while the first full image one was still finishing up).
Will raise a ticket as suggested if problems continue.
Hello Dave.
Thanks for the updates.
Feel free to comment if you have any additional queries.
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Update: Problems still continue... Completely rebuilt my TrueNAS server and upgraded to latest v13.
I can do a Macrium Reflect backup to the NAS drive no problem, but its not my preferred tool... Acronis CP is.
I've tried combinations of methods, and all fail with connection to NAS.... usually around 128Gb in, after initial full (OK), then 6 or so Differentials/Incrementals.
I'm reverting to weekly full backups, and setting it to split at 500Gb.
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Even weekly full backups fail... never got to 500G split point... with ~8 existing files in target folder (prior Full backup + 6 differentials + failed 7th backup... it seems to try to recreate the 7th tibx file, and fails 183Gb in.
One thing I did notice, its Hot... like very hot (for UK) as loft based office... and NAS is showing high CPU (4cores) during backups and thus the CPU temps are getting above 75 degrees!
I wonder if it is throttling CPU to reduce temp, and that is seen as some sort of disconnect.
I've turned off the basic compression option, in the ZFS filesystem to hopefully give CPU a lot less work to do. So far it seems to be working... Cleared out folder entirely, then started afresh full backup ... 2.7TB in and no loss of connection.
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Dave Hogg wrote:Even weekly full backups fail... never got to 500G split point... with ~8 existing files in target folder (prior Full backup + 6 differentials + failed 7th backup... it seems to try to recreate the 7th tibx file, and fails 183Gb in.
One thing I did notice, its Hot... like very hot (for UK) as loft based office... and NAS is showing high CPU (4cores) during backups and thus the CPU temps are getting above 75 degrees!
I wonder if it is throttling CPU to reduce temp, and that is seen as some sort of disconnect.
I've turned off the basic compression option, in the ZFS filesystem to hopefully give CPU a lot less work to do. So far it seems to be working... Cleared out folder entirely, then started afresh full backup ... 2.7TB in and no loss of connection.
Hello Dave!
Thank you for the updates.
I have raised a ticket with our support so we can investigate the issue.
The reference number is 05967126.
You can expect a contact from our side as soon as possible.
Feel also free to update this thread.
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Dave,
Can you provide specs on your TrueNAS server? If you are experiencing high temps and CPU throttling it's a good bet your ram is overheating too, neither of which are good. Almost 4TB of data is a large backup by any measure. Have you tried running the server with the side panels removed (if possible). This can make a big difference in cooling when ambient temps are high.
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The TrueNas is built in what was a QNAP 453be ... after they were hacked a few time, and their 'call home' software let ransom-ware propagate to end users NAS I rebuilt it using TrueNAS. I added an extra 4Gb SIMM so 8Gb (Max) RAM. CPU = Intel® Celeron® J3455 4-core 1.5 GHz processor (burst up to 2.3 GHz). There are no Jails set up with any other Apps running so 'pure Samba' server effectively. 4 x 8Tb XFS filesystem so ~18TB storage.
It works great for all File activities apart from TrueImage.
I think it was cooking a bit during the summer and did indeed run it with the outer housing off for a while.
The problem seemed to occur due to size (or complexity) level of the incremental backups... once I got over a certain size they would bomb out and report drive connection error.
My eventual solution was to remove as many files from the backup as I could using filter... so all Photos/Vids being backed up via other means to cloud/NAS vastly reduced backup size and now it works.
I'm a big fan of TrueImage, over many years, but just does not handle my huge 8Tb SSD drive backups very well.
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