CentOS docs - May 2009 - Possible typo in "HowTos/Disk_Optimization"

Dear all,

In "HowTos/Disk_Optimization", the calculated value of stride size and
stripe width appears to have the "K" suffix incorrectly appended to 
them.  Eg:

    * (64K/4K) = 16K
    * (3*16K) = 48K
    * (16K+16K) = 32K

The values provided on the mkfs.ext3 command line however, do drop the 
"K" suffix.

I'm no expert on RAID, but the "K" suffixes do look a bit suspect.


Regards,
Timothy Lee
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On 29/05/2009, Timothy Lee <timothy.ty.lee at gmail.com>
wrote:
>
>  Dear all,
>
>  In "HowTos/Disk_Optimization", the calculated value of stride
size and
> stripe width appears to have the "K" suffix incorrectly appended
to them.
> Eg:
>
>
> (64K/4K) = 16K
> (3*16K) = 48K
>
> (16K+16K) = 32K The values provided on the mkfs.ext3 command line however,
> do drop the "K" suffix.
>
>  I'm no expert on RAID, but the "K" suffixes do look a bit
suspect.
Pedantically and ignoring the RAID aspect, just looking at the
equations scientifically, I would say that only the first one is wrong
as (64K / 4K) = 16, not 16K. It should be expressed as (64 / 4)K 16K.

The other two lines do read correctly but, in the spirit of
conformity, I would suggest (3 * 16)K = 48K and (16 + 16)K = 32K,
respectively.

Perhaps the original author would care to comment and adjust where necessary?

Alan.