Extremely slow complete disk restore
I have a couple of disk images (Acronis True Image 2017) of a Dell rack workstation. The disk is pretty big (8TB, it is actually a RAID with 6 disks), but just small portion of it is used right now.
When I try to restore one of the older images everything goes smooth and pretty quick. For example the very first image made after the system was started for a very first time restores in about 10 minutes. Other images with a lot of software installed on the system, probably about 100GB in total, restore also in reasonable time, i.e. about 2-3 hours. I am not exactly sure how long it takes, since I didn't do this since long time.
Recently, I created a new disk image, which includes also some additional files, software repositories (Mercurial) and a lot of small files (ASCII and PNG). Total disk space used - 250 GB.
- The backup took about 3 hours. This is acceptable.
- The restore is a big problem. When I start it, for about an hours there is nothing on the progress bar, then the time remaining shows 1 day and 8 hours. 15 hours later the time remaining is still 1 day and 3 hours
Any ideas how to speed this up?


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We are having a similar issue.
Question: Is there a significant change in time for Acronis to process an archive that is 300-400GB in size (versus < 100GB).
Procedures:
- We have a USB 3.0 disk array attached to an Acronis Backup server. We have been recovering archive images to individual hard drives in order to create duplicate system hard drives for emergency recovery.
- We recover the archive with command line using "acrocmd recover disk". This takes the form of:
acrocmd recover disk --loc=bsp://<main vault> --credentials=<user>,<pass> --arc=<archive name> --disk=<primary disk> --target_disk=<appropriate disk partition> - In general this works fine
Problem:
- We're trying to figure out how long a given drive partition will take to recover -- I've placed a table below that has actual partition sizes, times to recover and a rough average GB/min
- I'm guessing that ultimately the factors that are most important would be data rate for the USB disk array, disk write speed and the acrocmd speed
- Subjectively the data rate seems high but objectively just based on standard USB transfer rates (second table) it seems low -- so I'd hazard a subjective estimate as somewhere in the 1-4 hour range for 400GB.
- These numbers are empirical for our equipment, however, so either there's a LOT of processing taking place to recover the archive or our equipment doesn't have sustained performance.
Drive |
Partition (GB) |
Recover Time (min) |
GB/min |
F |
51 |
11 |
4.64 |
H |
60 |
12 |
5.00 |
I |
45 |
10 |
4.50 |
G |
396 |
20 |
19.80 |
USB |
Kilobyte |
Rate Size |
Bitrate |
Data Size (GB) |
Time |
Scale |
1.0 |
1024 |
1.536 |
Mbit/s |
400 |
652 |
Hours |
1.1 |
1024 |
12 |
Mbit/s |
400 |
83 |
Hours |
2.0 |
1024 |
480 |
Mbit/s |
400 |
2 |
Hours |
3.0 |
1024 |
3.2 |
Gbit/s |
400 |
18 |
minutes |
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Michael, welcome to these public User Forums.
Sorry but this forum is for Acronis True Image 2017 version, you will need to post in the Acronis Backup 12.5 Forum for any issues related to the Acronis range of business products.
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