How does the initial installation provide ZFS root pool support?
• During an initial installation of build 90, you have a choice of selecting a UFS or ZFS file system for the Solaris install. • If you select ZFS, you can select the disk or disks to be used for your ZFS root pool. If you select two disks, a mirrored two-disk configuration is setup for your root pool. Either a two- or three-disk mirrored pool is optimal. If you have 8 disks and you select all 8 disks, those 8 disks are used for the root pool as one big mirror. This is not an optimal configuration. • A swap device and a dump device are automatically created on ZFS volumes in the root pool. • The ZFS root pool is a special kind of pool that requires no administration. The sample zfs list output below identifies the root pool components, such as the mpool/ROOT entries, which are not accessible by default. # zfs list NAME USED AVAIL REFER MOUNTPOINT mpool 6.81G 1.24G 19K /mpool mpool/ROOT 5.81G 1.24G 18K /mpool/ROOT mpool/ROOT/ZFSbe 5.81G 1.24G 5.81G mpool/dump 516M 1.24G 516M – mpool/swa
