Diff for /wikisrc/guide/raidframe.mdwn between versions 1.6 and 1.8

version 1.6, 2013/03/02 13:20:56 version 1.8, 2013/03/02 13:25:13
Line 73  obtaining help. Line 73  obtaining help.
     search the list for the NetBSD platform on which you are using RAIDframe:      search the list for the NetBSD platform on which you are using RAIDframe:
     port-*`${ARCH}`*@NetBSD.org.      port-*`${ARCH}`*@NetBSD.org.
   
     ### Caution      *Caution*: Because RAIDframe is constantly undergoing development, some information in
   
         Because RAIDframe is constantly undergoing development, some information in  
         mailing list archives has the potential of being dated and inaccurate.          mailing list archives has the potential of being dated and inaccurate.
   
  3. Search the [Problem Report   3. Search the [Problem Report
Line 164  the RAID and: Line 162  the RAID and:
    be able to quickly reconfigure the system to boot from the remaining     be able to quickly reconfigure the system to boot from the remaining
    component (platform dependent).     component (platform dependent).
   
 ![RAID-1 Disk Logical Layout](/guide/images/raidframe_raidL1-diskdia.png)  ![RAID-1 Disk Logical Layout](/guide/images/raidframe_raidl1-diskdia.png)
   
 **RAID-1 Disk Logical Layout**  **RAID-1 Disk Logical Layout**
   
 Because RAID-1 provides both redundancy and performance improvements, its most  Because RAID-1 provides both redundancy and performance improvements, its most
Line 193  has become the de facto standard for set Line 192  has become the de facto standard for set
   
   
     ![Perform generic install onto Disk0/wd0](/guide/images/raidframe_r1r-pp1.png)      ![Perform generic install onto Disk0/wd0](/guide/images/raidframe_r1r-pp1.png)
   
     **Perform generic install onto Disk0/wd0**      **Perform generic install onto Disk0/wd0**
   
  2. Use the installed system on Disk0/wd0 to setup a RAID Set composed of   2. Use the installed system on Disk0/wd0 to setup a RAID Set composed of
     Disk1/wd1 only.      Disk1/wd1 only.
   
     ![Setup RAID Set](raidframe_r1r-pp2.png)      ![Setup RAID Set](/guide/images/raidframe_r1r-pp2.png)
   
     **Setup RAID Set**      **Setup RAID Set**
   
  3. Reboot the system off the Disk1/wd1 with the newly created RAID volume.   3. Reboot the system off the Disk1/wd1 with the newly created RAID volume.
   
   
     ![Reboot using Disk1/wd1 of RAID](/guide/images/raidframe_r1r-pp3.png)      ![Reboot using Disk1/wd1 of RAID](/guide/images/raidframe_r1r-pp3.png)
   
     **Reboot using Disk1/wd1 of RAID**      **Reboot using Disk1/wd1 of RAID**
   
   
  4. Add / re-sync Disk0/wd0 back into the RAID set.   4. Add/re-sync Disk0/wd0 back into the RAID set.
   
     ![Mirror Disk1/wd1 back to Disk0/wd0](/guide/images/raidframe_r1r-pp4.png)      ![Mirror Disk1/wd1 back to Disk0/wd0](/guide/images/raidframe_r1r-pp4.png)
   
     **Mirror Disk1/wd1 back to Disk0/wd0**      **Mirror Disk1/wd1 back to Disk0/wd0**
   
 ### Hardware Review  ### Hardware Review
Line 221  RAID level. Booting from a RAID set is a Line 224  RAID level. Booting from a RAID set is a
 boot loader to understand both 4.2BSD/FFS and RAID partitions. The 1st boot  boot loader to understand both 4.2BSD/FFS and RAID partitions. The 1st boot
 block code only needs to know enough about the disk partitions and file systems  block code only needs to know enough about the disk partitions and file systems
 to be able to read the 2nd stage boot blocks. Therefore, at any time, the  to be able to read the 2nd stage boot blocks. Therefore, at any time, the
 system's BIOS / firmware must be able to read a drive with 1st stage boot blocks  system's BIOS/firmware must be able to read a drive with 1st stage boot blocks
 installed. On the i386 platform, configuring this is entirely dependent on the  installed. On the i386 platform, configuring this is entirely dependent on the
 vendor of the controller card / host bus adapter to which your disks are  vendor of the controller card/host bus adapter to which your disks are
 connected. On sparc64 this is controlled by the IEEE 1275 Sun OpenBoot Firmware.  connected. On sparc64 this is controlled by the IEEE 1275 Sun OpenBoot Firmware.
   
 This article assumes two identical IDE disks (`/dev/wd{0,1}`) which we are going  This article assumes two identical IDE disks (`/dev/wd{0,1}`) which we are going
Line 534  value). Line 537  value).
   
 ### Initializing the RAID Device  ### Initializing the RAID Device
   
 Next we create the configuration file for the RAID set / volume. Traditionally,  Next we create the configuration file for the RAID set/volume. Traditionally,
 RAIDframe configuration files belong in `/etc` and would be read and initialized  RAIDframe configuration files belong in `/etc` and would be read and initialized
 at boot time, however, because we are creating a bootable RAID volume, the  at boot time, however, because we are creating a bootable RAID volume, the
 configuration data will actually be written into the RAID volume using the  configuration data will actually be written into the RAID volume using the
Line 632  as `/dev/raid0b`. Line 635  as `/dev/raid0b`.
 NetBSD Guide can expand on proper partitioning technique. See [Installing  NetBSD Guide can expand on proper partitioning technique. See [Installing
 NetBSD: Preliminary considerations and preparations*](inst).  NetBSD: Preliminary considerations and preparations*](inst).
   
 *Note*: Note that 1 GB is 2\*1024\*1024=2097152 blocks (1 block is 512 bytes, or  *Note*: 1 GB is 2\*1024\*1024=2097152 blocks (1 block is 512 bytes, or
 0.5 kilobytes). Despite what the underlying hardware composing a RAID set is,  0.5 kilobytes). Despite what the underlying hardware composing a RAID set is,
 the RAID pseudo disk will always have 512 bytes/sector.  the RAID pseudo disk will always have 512 bytes/sector.
   
Line 773  rebooted. After the reboot everything is Line 776  rebooted. After the reboot everything is
     [...snip...]      [...snip...]
     # shutdown -r now      # shutdown -r now
   
 ### Warning  *Warning*: Always use
   
 Always use  
 [shutdown(8)](http://netbsd.gw.com/cgi-bin/man-cgi?shutdown+8+NetBSD-5.0.1+i386)  [shutdown(8)](http://netbsd.gw.com/cgi-bin/man-cgi?shutdown+8+NetBSD-5.0.1+i386)
 when shutting down. Never simply use  when shutting down. Never simply use
 [reboot(8)](http://netbsd.gw.com/cgi-bin/man-cgi?reboot+8+NetBSD-5.0.1+i386).  [reboot(8)](http://netbsd.gw.com/cgi-bin/man-cgi?reboot+8+NetBSD-5.0.1+i386).
Line 936  priority to Disk1/wd1 before Disk0/wd0.  Line 937  priority to Disk1/wd1 before Disk0/wd0. 
 BIOS.  BIOS.
   
 ![Award BIOS i386 Boot Disk1/wd1](/guide/images/raidframe_awardbios2.png)  ![Award BIOS i386 Boot Disk1/wd1](/guide/images/raidframe_awardbios2.png)
   
 **Award BIOS i386 Boot Disk1/wd1**  **Award BIOS i386 Boot Disk1/wd1**
   
 Save changes and exit:  Save changes and exit:
Line 952  boot loader is 30 seconds instead of 15. Line 954  boot loader is 30 seconds instead of 15.
 configure the drive boot order back to the default:  configure the drive boot order back to the default:
   
 ![Award BIOS i386 Boot Disk0/wd0](/guide/images/raidframe_awardbios1.png)  ![Award BIOS i386 Boot Disk0/wd0](/guide/images/raidframe_awardbios1.png)
   
 **Award BIOS i386 Boot Disk0/wd0**  **Award BIOS i386 Boot Disk0/wd0**
   
 Save changes and exit:  Save changes and exit:

Removed from v.1.6  
changed lines
  Added in v.1.8


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