On 2013-08-30 19:33, Jean-Pierre wrote:
FIXME : The Windows wording for partition is volume and the OpenIndiana one is slice.
I did not read it all (yet) but this here is a bit of misunderstanding that I'd like to correct early on. Maybe just simplification for people new to this all, but not correct still. Solaris on x86, including OI, uses one partition on the standard MBR table. "Requires" for root pools, "May use" for data pools (alternative is direct use of EFI/GPT partitions on "dedicated" disks for example, which is not currently available for rpools). For example, Windows or in many cases Linux do directly use the whole MBR partition to house one filesystem, start to end. Some systems (say, Linux LVM) can use the partition to house a number of OS-configurable volumes which in turn contain filesystems. This approach may be easier to reconfigure than the limited (in amount and implementation detail) standard partitioning, especially if the volume manager allows use of fragmented partitions not stored in one contiguous range of LBA blocks. In case of an MBR partition, OI sets up a "slice label" (SMI table) in it; the firstmost located slice (conveniently named s8, whereas SPARC version of the table ends at s7) is reserved for boot and is sized one "cylinder" (16065 legacy sectors == 512b blocks); the logically first slice (s0) is used for rpool as long as the default config is concerned. On SPARC there is no concern for MBR or multi-booting, and the SMI table just occupies the whole disk usually. You can have many slices in the table - up to 8 typically, though the legacy SMI table usually (not required) designates s2 as "backup" and it addresses all of the slice table from zero to end. An individual slice can be (part of) a different ZFS pool, for example. So, long story short, "The OpenIndiana wording for partition is slice" is not a correct statement, and may mislead readers in the future :) HTH, //Jim Klimov _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
