On Mar 3, 2005, at 19:20, Emanuel Strobl wrote:
If you consider upgrading to 5.4 you can use any onboard chipset or cheap
controller card with some geomclasses, namely g_mirror. It's fantastic and
the only stateful mirror solution I know. And you can mirror only parts of
your disk, or mirror across 3 drives aso. The power of geom :)
This can be done with 4.x. From atacontrol(8):
create Create a type ATA RAID. The type can be RAID0 (stripe), RAID1
(mirror), RAID0+1 or SPAN (JBOD). In case the RAID has a RAID0
component, the interleave must be specified in number of sec-
tors. The RAID will be created of the individual disks named
disk0 ... diskN.
Although the ATA driver allows for creating an ATA RAID on disks
with any controller, there are restrictions. It is only possi-
ble to boot on an array if it is either located on a ``real''
ATA RAID controller like the Promise or Highpoint controllers,
or if the RAID declared is of RAID1 or SPAN type; in case of a
SPAN, the partition to boot must reside on the first disk in the
SPAN.
Vinum(8) is also available on 4.x.
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