The slow part of zpool import is actually discovering the pool configuration. This involves examining every device on the system (or every device within a 'import -d' directory) and seeing if it has any labels. Internally, the import action itself shoudl be quite fast, and is essentially the same speed as opening a pool normally. So the scalability is really depending on the number of devices in the system, not the number of devices within a pool.
- Eric On Mon, Feb 26, 2007 at 08:14:14AM -0600, Paul Fisher wrote: > Has anyone done benchmarking on the scalability and performance of zpool > import in terms of the number of devices in the pool on recent opensolaris > builds? > > In other words, what would the relative performance be for "zpool import" for > the following three pool configurations on multi-pathed 4G FC connected JBODs: > 1) 1, 12 disk raidz2 in pool > 2) 10, 12 disk raidz2 in pool > 3) 100, 12 disk raidz2 in pool > > Any feedback on your experiences would be greatly appreciated. > > > -- > > paul > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Eric Schrock, Solaris Kernel Development http://blogs.sun.com/eschrock _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
