I do not know and I don't think anyone would deploy a system in that way with UFS. This is the model that is imposed in order to take full advantage of zfs advanced features such as snapshots, encryption and compression and I know many universities in particular are eager to adopt it for just that reason, but are stymied by this problem.
Alastair On Thu, Feb 25, 2010 at 8:39 PM, Bob Friesenhahn < bfrie...@simple.dallas.tx.us> wrote: > On Thu, 25 Feb 2010, Alastair Neil wrote: > > I don't think I have seen this addressed in the follow-ups to your >> message. One >> issue we have is with deploying large numbers of files systems per pool - >> not >> necessarily large numbers of disk. There are major scaling issues with >> the sharing >> of large numbers of file systems, in my configuration I have about 16K >> file systems >> to share and boot times can be several hours. There is an open bug >> > > Is boot performance with 16K mounted and exported file systems a whole lot > better if you use UFS instead? > > > Bob > -- > Bob Friesenhahn > bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ > GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ >
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