Diff for /wikisrc/set-up_raidframe.mdwn between versions 1.5 and 1.6

version 1.5, 2011/07/06 03:48:30 version 1.6, 2011/07/06 03:51:16
Line 43  Here's what I did recently to get raidfr Line 43  Here's what I did recently to get raidfr
         Bootselector disabled.          Bootselector disabled.
         First active partition: 0          First active partition: 0
   
  (The "PBR is not bootable" line will not appear if you later use installboot(8) - see step 12 below.)   (The "PBR is not bootable" line will not appear if you later use installboot(8) - see step 14 below.)
   
 4. Use disklabel(8) to provide a NetBSD disklabel on each member of the raidset.  Create an 'e' partition that describes the whole disk - so it is essentially a copy of the 'c' partition.  Make sure that the offset of your 'e' partition is large enough to accomodate any architecture-specific bootstrap requirements, and that the offset is a multiple of the hard drive's native transfer size.  4. Use disklabel(8) to provide a NetBSD disklabel on each member of the raidset.  Create an 'e' partition that describes the whole disk - so it is essentially a copy of the 'c' partition.  Make sure that the offset of your 'e' partition is large enough to accomodate any architecture-specific bootstrap requirements, and that the offset is a multiple of the hard drive's native transfer size.
   
Line 98  Here's what I did recently to get raidfr Line 98  Here's what I did recently to get raidfr
   
         raidctl -s raid1          raidctl -s raid1
   
 9. When parity is finished, you can treat the raidset as a normal disk. You will need to write a NetBSD disklabel (this label is separate from the labels on the physical drives).  Make certain that all the offsets are multiples of the drive's native block size; otherwise you will have unaligned transfers and performance will be very bad!  (This is also why, in step 2 above, we use "-A 2048" for fdisk rather than letting it default to 63!")  9. When parity is finished, you can treat the raidset as a normal disk. You will need to write a NetBSD disklabel (this label is separate from the labels on the physical drives).  Make certain that all the offsets are multiples of the drive's native block size; otherwise you will have unaligned transfers and performance will be very bad!  (This is also why, in step 3 above, we use "-A 2048" for fdisk rather than letting it default to 63!")
   
  Here is what my drive looks like:   Here is what my drive looks like:
   

Removed from v.1.5  
changed lines
  Added in v.1.6


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