Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
--- Lars Ellenberg <Lars.Ellenberg at linbit.com> wrote: > / 2006-05-09 11:06:04 -0700 > \ Martin Fick: ... > > What I mean is that if a device has never had any > > data on it, let's say the partitions were just > > created, allow a startup feature that would not > > attempt to sync the two partitions. In this case, > > only newly written data to the disks need be synced, so as > > soon as mkfs or what not is run on the primary it > > would sync over the fs layout and continue to > > operate as normal. > yes it is possible. > no we probably won't make it easier. > > as experience shows, people are very tempted to > shoot themselves, and > would even use that option because it is available > and mentioned in some > "howto" thing, even if it is not applicable. > it would initially appear to work ok, then they > would do a failover, > complain about fs-corruption and declare that drbd > had eaten their data... I understand the desire to have people avoid shooting themselves in the foot, a goal that I am very glad drbd takes seriously, but I have to wonder if there wouldn't still be a safe option for drbd to do this somehow. If a partition is starting off fresh, can't drbd be sure of that? Afterall there is a period in time when there is no metadata on the partitions and drbd has decided that it is OK to initialize the partition (--do-what-i-say). At this point in time it surely would be no worse to use an algorythm that simply shortcutted the syncing process would it? > do skip the initial sync with drbd 0.7.x, you could > use the write_gc.pl > program (in the source tar.gz, testing/) and > initialize the meta data > with 'consistent' identical GCs on both nodes. Thanks, I will look into that, but I surely think that having a separate tool like this is more likely to make somone shoot themselves in the foot than doing it safely within drbd itself at initialization. -Martin __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com