Re: raidframe performance question

[Paul Goyette <paul%whooppee.com@localhost>]

On Fri, 6 May 2011, Michael L. Hitch wrote:

>  I would be curious to know what the write performance is writing to 
> /dev/rwd4e when that partition starts at 63.  If the drive does actually have 
> 4K physical sectors and emulates 512 byte sectors, then the writes will be 
> misaligned and will likely have poorer performance.

With the following partitions, I still get 100MBytes/sec...  So I guess 
we're not emulating...

5 partitions:
#        size   offset     fstype [fsize bsize cpg/sgs]
 c: 976771120     2048    unused      0     0        # (Cyl.    2*- 969020)
 d: 976773168        0    unused      0     0        # (Cyl.    0 - 969020)
 e: 976771057     2111    4.2BSD      0     0     0  # (Cyl.    2*- 969020)

(Note that e starts 2048+63 from the beginning of the disk)



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