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Extremely slow complete disk restore

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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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Nikolay, welcome to these User Forums.

Sorry but more questions than answers at this point in time.

How are you doing the Restore here?  Is this using the ATI 2017 Rescue Media?

How long ago (roughly) is it since you last did a complete restore of this system that took around 3 hours?

Is there a specific reason why you are attempting to restore the new backup image of the larger system image (250GB)?  Is there any indication here of any disk problems being encountered.

Was the log for the latest backup clean, i.e. no errors reported when the backup was made?

Have you checked the Log in the Rescue Media standalone ATI interface (assuming this is accessible)?

Finally, are there any other differences between when you last did a successful restore of this computer and now? Are you using the same ATI 2017 version / rescue media / backup drive etc?

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

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.