As you may be aware OSG is off line.
Let me preface this by saying that your data is ok. This is not a crash.
This is a needed house-cleaning procedure that's the product of taking up to four times the space in the server that it's needed for the assets files. So they are re-organising the way the data is stored and adding essentially more space in the server.
In your personal computer that would take about 2 or 3 hours tops,
given the size and complexity of the setup of OSGrid that will take about 48 hours. Think that the current ingest of assets of the old server is rounding a quarter of a billion assets... in tiny tiny files.
Think your hard drive, it's like a huge stack of tiny boxes, you can put inside just one piece of information, if you put something that is bigger than one box then you fill as many boxes as necessary until the thing is completely there, that's how it works.
However if you have a bunch of things that are smaller than the box that contains it you waste a TON of space. That's why it's needed to reorganise the data and that's what they're doing right now. So that's the reason why it'll take so long, but as I said before, this is not a crash, just housekeeping, your data is fine.
If I have more updates I'll keep you informed.

https://twitter.com/osgrid/sta....tus/1505682546927050