On Mar 6, 2010, at 8:05 PM, Eric D. Mudama wrote: > On Sat, Mar 6 at 15:04, Richard Elling wrote: >> On Mar 6, 2010, at 2:42 PM, Eric D. Mudama wrote: >>> On Sat, Mar 6 at 3:15, Abdullah Al-Dahlawi wrote: >>>> >>>> hdd ONLINE 0 0 0 >>>> c7t0d0p3 ONLINE 0 0 0 >>>> >>>> rpool ONLINE 0 0 0 >>>> c7t0d0s0 ONLINE 0 0 0 >>> >>> I trimmed your zpool status output a bit. >>> >>> Are those two the same device? I'm barely familiar with solaris >>> partitioning and labels... what's the difference between a slice and a >>> partition? >> >> In this context, "partition" is an fdisk partition and "slice" is a >> SMI or EFI labeled slice. The SMI or EFI labeling tools (format, >> prtvtoc, and ftmhard) do not work on partitions. So when you >> choose to use ZFS on a partition, you have no tools other than >> fdisk to manage the space. This can lead to confusion... a bad >> thing. > > So in that context, is the above 'zpool status' snippet a "bad thing > to do"?
If the partition containing c7t0d0s0 was p3, then it could be exceedingly bad. Normally, if you try to create a zpool on a slice which already has a zpool, then you will get an error message to that effect, which you can override with the "-f" flag. However, that checking is done on slices, not fdisk partitions. Hence, there is an opportunity for confusion... a bad thing. -- richard ZFS storage and performance consulting at http://www.RichardElling.com ZFS training on deduplication, NexentaStor, and NAS performance http://nexenta-atlanta.eventbrite.com (March 16-18, 2010) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
