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10 Janvier 2021
SoftRAID XT is designed exclusively for OWC products such as the ThunderBlade, ThunderBay series, Express 4M2, and Mercury Elite Pro Quad. If you want to use SoftRAID on other enclosures, you will need to upgrade to the full version of SoftRAID. Microsoft Windows supports RAID 0, RAID 1, and RAID 5 using various software implementations. Logical Disk Manager, introduced with Windows 2000, allows for the creation of RAID 0, RAID 1, and RAID 5 volumes by using dynamic disks, but this was limited only to professional and server editions of Windows until the release of Windows 8.
Please note currently only the i386 and amd64 kernels allow booting directly from a softraid array. Other supported architectures require the kernel to be located on a small (100MB) non-softraid partition.
I recently purchased a HP Proliant MicroServer N40L, and a couple of Western Digital RE4 enterprise drives to use in a RAID 1 array. The process of configuring the softraid RAID array was as simple as follows:
Boot off the 5.3 media as per usual, but choose (S)hell instead of (I)nstall.
(I)nstall, (U)pgrade or (S)hell? s
# cd /dev
# sh /dev/MAKEDEV sd1 sd2
# fdisk -iy sd0
Writing MBR at offset 0.
# fdisk -iy sd1
Writing MBR at offset 0.
# disklabel -E sd0
Label editor (enter ‘?' for help at any prompt)
> a a
offset: [64] [ENTER]
size: [976768001] [ENTER]
FS type: [4.2 BSD] RAID
> q
Write new label?: [y] y
# cd /tmp
# disklabel sd0 > protofile
# disklabel -R sd1 protofile
#bioctl -c 1 -l /dev/sd0a,/dev/sd1a softraid0
sd2 at scscibus2 targ 1 lun 0:
sd2: 476937MB, 512 bytes/sector, 976767473 sectors
softraid0: SR RAID 1 volume attached as sd2
#dd if=/dev/zero of=/dev/rsd2c bs=1m count=1
1+0 records in
1+0 recours out
1048576 bytes transferred in 0.031 secs (32996916 bytes/sec)
# exit
That will place you back at the (I)nstall, (U)pgrade or (S)hell? prompt and you can install as per normal. Just be sure to install to the newly created sd2 array. Partitions on the array can be configured as per usual, using 4.2 BSD/swap FS types. Once you're done reboot as per usual and you'll be up and running with softraid. To make sure you can check your array status with the bioctl command.
# bioctl softraid0
Volume Status Size Device
…
#

It's also worth noting that softraid can handle RAID 0, 5 and more. To configure a RAID 0 stripe you would follow the guide for RAID 1 but change the bioctl command:
#bioctl -c 0 -l /dev/sd0a,/dev/sd1a softraid0
A quick example for configuring 3 drives in RAID 5 would be as follows:
(I)nstall, (U)pgrade or (S)hell? Draftsight. s
# cd /dev
# sh /dev/MAKEDEV sd1 sd2 sd3
# fdisk -iy sd0
# fdisk -iy sd1
# fdisk -iy sd2
# disklabel -E sd0
> a a
offset: [64] [ENTER]
size: [976768001] [ENTER]
FS type: [4.2 BSD] RAID
> q
Write new label?: [y] y
# cd /tmp
# disklabel sd0 > protofile
# disklabel -R sd1 protofile
# disklabel -R sd2 protofile
#bioctl -c 5 -l /dev/sd0a,/dev/sd1a,/dev/sd2a softraid0
#dd if=/dev/zero of=/dev/rsd3c bs=1m count=1
# exit
You would then install to the newly created sd3 array.

As always be sure to check the man pages if you're not sure what a command does.
softraid (4)
bioctl (8)
fdisk (8)
disklabel (8)
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