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diff --git a/docs/docs/howtos/howtosoftwareraid/index.mdwn b/docs/docs/howtos/howtosoftwareraid/index.mdwn
index 90b9741..5c72399 100644 (file)
--- a/docs/docs/howtos/howtosoftwareraid/index.mdwn
+++ b/docs/docs/howtos/howtosoftwareraid/index.mdwn
@@ -1,14 +1,15 @@
 *** THIS GUIDE IS INCOMPLETE ***
 
-[[!toc  levels=3]]
+[[!toc  levels=2]]
 # Scenario
 I am running 2.11-DEVELOPMENT DragonFly 64Bit with i5 Core on an Intel® Server-Mainboard S1200BT with 8GB RAM.
 The Main System is on two Disks mirrored RAID1 with 500GB.
 I want to use dfBSD as our company Fileserver for important Backups. Also I found an old (not much used) Dawi controler (with Sillicon's SiL Chip) with 4 SATA Ports which I want to use for our Backup Fileserver.
 
 # Pre-steps
+
 ## Configuring the SATA Adapter
-Please make sure that the adapter is not configured (After the BIOS just before dfBSD starts) as RAID - just expose the disks individually to Dragonfly. We are going to setup a Software RAID.
+Please make sure that the adapter is not configured (after the BIOS just before dfBSD starts) with RAID - just expose the disks individually to Dragonfly. We are going to setup a Software RAID.
 
 ## Identifying the disks
 After booting up the system please check that the Adapter you are going to use is correctly found:
@@ -16,3 +17,30 @@ dmesg reveales:
 
        atapci1: <SiI 3114 SATA150 controller> port 0xe100-0xe10f,0xe110-0xe113,0xe120-0xe127,0xe130-0xe133,0xe140-0xe147 mem 0xfe4a1000-0xfe4a13ff irq 21 at device 0.0 on pci1
 
+also look out for the disks
+       sysctl kern.disks
+       kern.disks: ad14 ad12 ad10 ad8 da1 da0 md0
+
+Perfect, there they are: ad8..ad14
+
+
+## Chosing the right RAID
+You can look around in the intert for various Raid calculators 
+A very helpful page is this one:
+http://www.icc-usa.com/raid-calculator.asp
+One of the best this: http://kossky.sitesled.com/tools/rcdemo_en.htm
+
+As I want to have a Backup Fileserver I am chosing a VERY HIGH fault tolerant Raid10. Certainly there are other maybe better ones around, like the RAID60 or even RAID50 but we have to consider what the nata(4) driver offers.
+
+Looking at the man page of natacontrol(8) we see our software RAID options:
+
+       create   Create a type ATA RAID.  The type can be RAID0 (stripe), RAID1
+             (mirror), RAID0+1, SPAN or 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.
+
+RAID5 is the most versatile, and suitable for normal servers - but in my opinion too inefficient for a backup space with financial and accounting data.
+
+
+# Creating the Array