11 Sep
2012
11 Sep
'12
7:14 p.m.
On 09/11/2012 03:03 PM, Rich Alderson wrote:
Yup. :-) Freudian slip. EMC drives are formatted to 520, though.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
>>
He's absolutely clueless. Drives used in EMC storage arrays, for
>> example, which usually contain hundreds of drives, are usually (perhaps
>> always) formatted to 576 bytes/sector.
>
> Extra bytes for sector-level error correction, interpreted outside
> of the drive's own hardware?
AFAIK it's used for externally-handled ECC.
I typed 576 bytes above; I meant 520 bytes.
I'm sitting in a hotel at
the moment, pretty tired from driving, that's my excuse. ;)
576 sounded fine to me. After all, it's what was used on RA-81 drives
when connected via CFS to KL-10 systems with the CI option installed.