Copy latest revisions for restore followed by a later full copy?

[Laptop765]

Thanks for building such amazing software! I just had a failure that has me pulling down my 3 TB storage bucket from Backblaze to restore from our local server. I used the WebUI to add B2 and a local storage and then started a full copy. It’s taking a while which is fine but my wife wondered whether we could just pull the latest revisions of everything. I’d still like to have everything locally though.

From looking at the copy command docs it seems that I could go through and specify just the latest revision for each snapshot-id. I’m less clear on whether I’d be able to later download the rest of the revisions, especially if new revisions are created.

Example:
B2 has backups X (20 revisions) and Y (30 revisions)
I want to run copy backup X revision 20 from B2 to local and copy backup Y revision 30 from B2 to local
Restore from X20 and Y30
Start making new backups for X and Y

If I copy X21 and Y31 to B2 at this point will that break X1-X19 and Y1-Y29?

Can I run copy to pull down X1-X19 and Y1-Y29?

Some threads I found:

Specify revision number

You can rename a snapshot file if the storage is not encrypted. So if an unencrypted local storage is acceptable to you, you can simply run a local backup at revision 1, and then rename it to whatever revision you want. Otherwise, another option is to use a new repository id for the local backup, so when you copy from local to B2 there won’t be a revision number conflict.

Copy - all snapshot revisions exist at the destination

I’ve got two cloud storage locations. The same local storage is backed up to both (-bit-identical used). Both have had the same number of backups run so they have the same number of revisions, 10 each. Wasabi 's revision 10 is more recent than Google Drive’s revision 10 so I tried copying the latest Wasabi revision to Google Drive as in theory it should be quicker than running a new backup job. I get the response all snapshot revisions exist at the destination. I assume this is simply because…

Related: I initially created B2 as copy-compatible with the local storage. Is it sufficient to mark the new local storage as copy-compatible with B2 or does order matter?

Thanks in advance!

[gchen]

@Laptop765

If I copy X21 and Y31 to B2 at this point will that break X1-X19 and Y1-Y29?

No, they won’t.

@Laptop765

Can I run copy to pull down X1-X19 and Y1-Y29?

Yes.

@Laptop765

Related: I initially created B2 as copy-compatible with the local storage. Is it sufficient to mark the new local storage as copy-compatible with B2 or does order matter?

The new local storage must be copy-compatible with B2 otherwise copy won’t work.

[Laptop765]

Awesome, thanks for confirming!