On Thu, Jul 30, 2015 at 3:36 PM, Karel Gardas <gard...@gmail.com> wrote: > On Thu, Jul 30, 2015 at 2:01 PM, Christian Weisgerber > <na...@mips.inka.de> wrote: >> On 2015-07-30, Karel Gardas <gard...@gmail.com> wrote: >> >>> discussion. So far what I've read is that softdep does have some >>> unreliability issues on somehow limited platforms: either small kernel >>> memory or slow disk drive or even buggy disk drive. >> >> If you push a beefy machine hard enough (e.g. bulk amd64 package >> builds), you will suffer occasional softdep crashes. > > Ack. > >>> Net also as the only one from *BSD supports ffs snapshoting, >> >> FFS snapshots were added to FreeBSD 15 years ago. > > Actually it seems they does not support snapshots by default anymore, > since they rather support softupdates journaling. Tested on 10.1 and > default is what matters here. >
Assuming by FFS snapshots you mean the snapshots created by mksnap_ffs(8) they are well supported and haven't gone anywhere in FreeBSD 10. Neither are they mutually exclusive with softupdates. Softupdates journaling (SU+J) did have some issues with FFS snapshots but they have been largely resolved now. -Kimmo
