Cannot open backup from any previous version
I have Acronis backups going back a decade. I cannot open any of them using 2020.
The progress bar gets slower and slower until coming to a stop midway under the X on the right hand side.
These are full image backups. The largest backup file is 800 GB. Acronis 2020 Version is 20770.
Is this a feature?
Help - I need access to these backups.
Perry, with what version(s) of ATI were these backups created?
One possible solution may be to validate the backup first (which unfortunately will probably add it to the GUI, and you will have to remover it subsequently). Validation fixes all sorts of issues.
Also I would try doing a repair installation - it can fix all sorts of problems. Download the installation file via your Acronis account, then select the file, and Run as Administrator, and when prompted select Repair rather than Install.
Ian
The backups were created with multiple versions of ATI going back more than 10 years. I've taken down the old machine and installed 2020 on the new one. I recollect the ATI on the old machine to be current in 2018.
I used a hierarchical backup scheme where ATI backed up to a large local drive which shunted older backups to a NAS.
The network is 1Gb. The NAS is a new higher performance machine and typical copies at more than 100 MB/s.
I loaded up the local drive containing the most recent backups using an external disk adapter and have been able to access backups from that (albeit only after letting it sit for "who knows how long").
I surmise the following:
- Slowness is a usability problem (no surprise).
- Slowness is backup file size dependent (no surprise).
- It is my belief that the slowness is attributable to an inefficient design approach with respect to I/O. The feelz I get is that I/O is being done in modest sizes. This is especially a problem with networked attached storage since every transfer incurs overhead. I would hope network access in ATI is smart enough to sense MTU size and transfer in units no smaller than that. For local I/O, it makes sense to perform reads at in massive blocks at once, reconciling byte offsets internally. In fact, it would make sense to implement one's own buffer replacement policy internally caching effectively. I'm expecting a product as mature as ATI already does these things but the glacial performance of ATI 2020 suggests maybe not.
In sum, NAS-based backups are unusable due to slow performance. This is not ideal and was not always the case.
Your post indicate you have larger backup sizes (above 600GB). There is an issue these days with larger backup files that appears when users are backing up larger amount of data. I am wondering if you don't see another aspect of the issue here.
The large backup issue is discussed in this thread.