Hi,
part of updating a DC from 4.2 to 4.3 consists in updating format of data storage domains from V4 to V5. Questions: - where can I find list of differences between V4 and V5? And in general between previous ones?
I'm afraid there's no design doc for it. Here's list of changes: * domain metadata * added: alignment, block_size * removed: logblksize, phyblksize * volume metadata * added: cap (replacement for size, capacity is size in bytes, while size was in mutiples of block size (512B)) * removed mtime, pool_uuid, size If you want more details about the changes, you can check slides [1]
- can I force only a particular storage domain to remain in V4 while having the other ones upgraded to V5, for any reason? Or the reverse: update only one of the defined domains?
I don't think this is possible. HTH Vojta [1] https://github.com/vjuranek/presentations/blob/master/internal/oVirt/ storage_v5/storage_v5.pdf