Re: Sector offset values for softraid volumes

2013-08-05 Thread Erling Westenvik
On Sun, Aug 04, 2013 at 06:24:33AM -0700, Chris Cappuccio wrote: Erling Westenvik [erling.westen...@gmail.com] wrote: physical disks: sd0a: 64 + N-64 sd1a: 64 + N-64 RAID 1 volume: sd2a: 64 + 64 + N-128 CRYPTO volume: sd3a: 64 + 64 + 64 + N-196 The space wasted on

Re: Sector offset values for softraid volumes

2013-08-04 Thread Chris Cappuccio
Erling Westenvik [erling.westen...@gmail.com] wrote: physical disks: sd0a: 64 + N-64 sd1a: 64 + N-64 RAID 1 volume: sd2a: 64 + 64 + N-128 CRYPTO volume: sd3a: 64 + 64 + 64 + N-196 The space wasted on large disks is negligible but I would really like to know at which level the

Re: Sector offset values for softraid volumes

2013-08-03 Thread James Griffin
Fri 2.Aug'13 at 18:07:17 +0200, Erling Westenvik Not sure how to express myself here, but consider preparing a physical disk (sd0) for FDE. We initialize the disk: # fdisk -iy sd0 # printf a\n\n\n\nRAID\nw\nq\n\n | disklabel -E sd0 # bioctl -c C -l

Re: Sector offset values for softraid volumes

2013-08-03 Thread Nick Holland
On 08/02/13 12:06, Erling Westenvik wrote: ... The space wasted on large disks is negligible but I would really like to know at which level the 64 sector offset may be set to 0. yes. two offsets, 128 sectors * 0.5k/sector = 64k. Now, I probably appreciate the value of 64k more than most

Sector offset values for softraid volumes

2013-08-02 Thread Erling Westenvik
Not sure how to express myself here, but consider preparing a physical disk (sd0) for FDE. We initialize the disk: # fdisk -iy sd0 # printf a\n\n\n\nRAID\nw\nq\n\n | disklabel -E sd0 # bioctl -c C -l /dev/sd0a softraid0 This yields a virtual disk sd1 with an a partition of type RAID that has an