On 2013-01-22 14:29, Darren J Moffat wrote:
Preallocated ZVOLs - for swap/dump.
Sounds like something I proposed on these lists, too ;) Does this preallocation only mean filling an otherwise ordinary ZVOL with zeroes (or some other pattern) - if so, to what effect? Or is it also supported to disable COW for such datasets, so that the preallocated swap/dump zvols might remain contiguous on the faster tracks of the drive (i.e. like a dedicated partition, but with benefits of ZFS checksums and maybe compression)? Thanks, //Jim _______________________________________________ zfs-discuss mailing list email@example.com http://mail.opensolaris.org/mailman/listinfo/zfs-discuss