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- Newsgroups: comp.sys.next.sysadmin
- Path: sparky!uunet!stanford.edu!leland.Stanford.EDU!news
- From: m@crito.stanford.edu (M Carling)
- Subject: Re: What's a better block size for a Fuji 520M drive?
- Message-ID: <1992Aug17.182637.9116@leland.Stanford.EDU>
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSO, Stanford University
- References: <59698@mimsy.umd.edu>
- Date: Mon, 17 Aug 92 18:26:37 GMT
- Lines: 17
-
- 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
- --
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