Re: RAID1 and data safety?

Neil Brown [off-list ref] wrote:

Due to the system crash the data on hdb is completely ignored.  Data

Neil - can you explain the algorithm that stamps the superblocks with
an event count, once and for all? (until further amendment :-).

It goes without saying that sb's are not stamped at every write, and the
event count is not incremented at every write, so when and when?

Thanks

Peter