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Cloud Backup Slow

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Hi,

My cloud backup is going very slow.

Acronis support has told me the reason for the slow backup to the cloud is due to a bad sector on my internal SSD.

Can someone please help me understand in detail why a bad sector on my internal SSD is causing the cloud backup to be slow.

From my simple understanding of the backup process: Acronis should be reading the backup data from the external hard drive, putting it into memory, and then sending it out over my WiFi to Acronis cloud storage.

During that process is Acronis writing\reading to my internal SSD?

My Windows 10 system is running. I can boot, run any program, Word, Access, Oracle Virtual Box. That says to me the internal SSD is working just fine and Windows is able to work around the bad sector.

The one problem though is that WMI Provider is using a lot of CPU 10%-20%. I don't know if WMI Provider is impacting Acronis backup. I've been trying to diagnose what is causing WMI Provider to use a lot of CPU.

The internal SSD is 2 TB.

The external hard drive is 5 TB.

I have 64 GB RAM.

I'm using WiFi 5 G.

I've run SpeedTest which shows 253 Mbps upload speed and 40 Mbps upload speed.

I've run CHKDSK several times and SFC /SCANNOW.

The cloud backup still runs slowly after running those two programs.

Ed

 

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Ed, welcome to these public User Forums.

Acronis support has told me the reason for the slow backup to the cloud is due to a bad sector on my internal SSD.

Can someone please help me understand in detail why a bad sector on my internal SSD is causing the cloud backup to be slow.

Any potential bad blocks on SSD's or bad sectors on HDD's can cause Acronis to switch to using 'Sector-by-Sector' mode of backup, which in essence would mean creating a backup of the whole drive, i.e. 2TB SSD

From my simple understanding of the backup process: Acronis should be reading the backup data from the external hard drive, putting it into memory, and then sending it out over my WiFi to Acronis cloud storage.

During that process is Acronis writing\reading to my internal SSD?

The process used by the backup operation depends on what you have selected for Acronis to do here?

If you have created a direct backup of the SSD to the Acronis Cloud, then there will always be an initial Full backup image uploaded to the cloud, after which only changed data is ever uploaded.

If you have created a backup of the SSD to a local drive then elected to replicate that backup to the Cloud, then much more data is uploaded due to the way that replication works, but the actual data would come from the local drive, not the SSD.

Another factor as to whether Acronis reads / writes to / from the SSD is whether you are electing to verify the backup data or not?

Download a copy of the MVP Assistant log viewer tool and use this to look at the logs to see if they show any issues during the operation process?

The latest version of the new log viewer tool is at the link below.
MVP Assistant Version 2.6.3 is available.

If you have Disks & Partitions backups created on ATI 2020 or later using .tibx files, then look in the Backup Worker logs.

If you have Files & Folders backups using .tib files (or Disk backups from earlier versions using .tib files) or using Cloning then look in the Demon logs.

Other logs are shown by the MVP Assistant under the 'Active Logs' heading of the Log Viewer page of the Assistant, i.e. Media Builder.

The Schedule2 log contains information related to scheduled task but is one of the more difficult logs to read / work through.

The log files should be zipped to preserve their original file names if sharing in the forums and would need to be less than 3MB in size, otherwise you would need to share the zip file via a Cloud share service such as OneDrive, Dropbox etc.

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Posts: 2
Comments: 1727

Hello!

Welcome to the forum.

The bad blocks can in fact affect the performance of the backups.

Please apply the solutions our support sent you in the email and reply to the same email if the issue persists so we can be aware.

Thanks in advance!