Re: [zfs-discuss] Metadata (DDT) Cache Bias

2011-06-04 Thread Richard Elling
On Jun 3, 2011, at 6:25 AM, Roch wrote: > > Edward Ned Harvey writes: >> Based on observed behavior measuring performance of dedup, I would say, some >> chunk of data and its associated metadata seem have approximately the same >> "warmness" in the cache. So when the data gets evicted, the associ

Re: [zfs-discuss] compare snapshot to current zfs fs

2011-06-04 Thread Harry Putnam
Andrew Gabriel writes: > Harry Putnam wrote: >> I have a sneaking feeling I'm missing something really obvious. >> >> If you have zfs fs that see little use and have lost track of whether >> changes may have occurred since last snapshot, is there some handy way >> to determine if a snapshot match

Re: [zfs-discuss] compare snapshot to current zfs fs

2011-06-04 Thread Andrew Gabriel
Harry Putnam wrote: I have a sneaking feeling I'm missing something really obvious. If you have zfs fs that see little use and have lost track of whether changes may have occurred since last snapshot, is there some handy way to determine if a snapshot matches its filesystem. Or put another way,

[zfs-discuss] compare snapshot to current zfs fs

2011-06-04 Thread Harry Putnam
I have a sneaking feeling I'm missing something really obvious. If you have zfs fs that see little use and have lost track of whether changes may have occurred since last snapshot, is there some handy way to determine if a snapshot matches its filesystem. Or put another way, some way to determine

Re: [zfs-discuss] [OpenIndiana-discuss] Another zfs issue

2011-06-04 Thread Roy Sigurd Karlsbakk
> > Yeah, this is a known problem. The DTL on the toplevel shows an > > outage, and is preventing the removal of the spare even though > > removing the spare won't make the outage worse. > > > > Unfortunately, for opensolaris anyway, there is no workaround. > > > > You could try doing a full scrub,