🚀 go-pugleaf

In article <59698@mimsy.umd.edu> alex@cs.umd.edu (Alex Blakemore) writes:
> what is a better block size for a FUJITSU M2624F?
> 512 or 1024? and why?

Not only for this Fujitsu, but for all SCSI hard drives, 1024 byte blocks  
are better than (or in a few cases as good as) 512 byte blocks. The reason  
is that the filesystem writes files in increments of 1K. Thus if the disk  
is formatted to 512, blocks get used in pairs. There is an overhead cost  
to be paid for this. Formatting the drive to 1024 byte blocks may yield a  
capacity increase of up to 5%, and a performance increase smaller than  
that.

M Carling
Director, Bay Area NeXT Group
--
Dan Quayle needs a new running mate.
George Bush undermines his chances of being re-elected Vice President.

In article <1992Aug17.182637.9116@leland.Stanford.EDU> m@crito.stanford.edu (M Carling) writes:
>Not only for this Fujitsu, but for all SCSI hard drives, 1024 byte blocks  
>are better than (or in a few cases as good as) 512 byte blocks. The reason  
>is that the filesystem writes files in increments of 1K. Thus if the disk  
>is formatted to 512, blocks get used in pairs. There is an overhead cost  
>to be paid for this. Formatting the drive to 1024 byte blocks may yield a  
>capacity increase of up to 5%, and a performance increase smaller than  
>that.

Will the NeXT support sector sizes greater than 1024 bytes?  Since the sd
driver reads/writes 8K chunks, might one find even better performance with
8K sectors?

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