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Hi,
I think this could be solved with a "Reverse Sync" functionality:
- Currently Syncs are performed by a PBS that connects to another PBS
and "pulls" datastore content to a local datastore.
- "Reverse Sync" would instead connect to a remote PBS and "push" local
datastore content to remote datastore. I don't know the technical
details, but this seems like a backup task (with chunk checksums already
calcultated and new backups created on remote with "arbitrary"
names/timestamps.
Do you think this would make sense?
The situation would be:
- Local PBS and PVE cluster. PVE backups to Local PBS.
- Remote PBS ("Cloud")
With Local PBS "Reverse Sync"ing to Remote PBS:
- No static IP needed for Local PBS
- No firewall config needed for Local PBS
- No additional PVE backup task for remote backup -> no dirty map issues
Cheers
Eneko
El 4/2/22 a las 17:21, Eneko Lacunza escribió:
Hi Dietmar,
El 4/2/22 a las 16:46, Dietmar Maurer escribió:
Would it be possible for PVE to create dirty-bitmaps per backup
storage/PBS storage? That would make this kind of setups more efficient
We decided against that because this can be a big memory leak. Please notice
that we can never free those bitmaps, so they can accumulate when the user
changes storage over time...
Dirty-bitmaps are lost if VM is stopped or migrated, if I understood
correctly?
If so, leaks would be cleared on next node reboot (version upgrade or
new kernel installed).
But I understand the issue. Maybe a check in advanced settings of PBS
storage with a warning to request a storage-speciffic dirty-bitmap...? :)
Thanks!
Eneko Lacunza
Zuzendari teknikoa | Director técnico
Binovo IT Human Project
Tel. +34 943 569 206 |https://www.binovo.es
Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun
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