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- Newsgroups: comp.sys.hp
- Path: sparky!uunet!wupost!udel!darwin.sura.net!haven.umd.edu!wam.umd.edu!ignatz
- From: ignatz@wam.umd.edu (Mark J. Sienkiewicz)
- Subject: Re: Third party disk drives on HP-UX
- Message-ID: <1992Aug31.222216.28663@wam.umd.edu>
- Keywords: HP-UX disk drive 3rd third party
- Sender: usenet@wam.umd.edu (USENET News system)
- Nntp-Posting-Host: rac2.wam.umd.edu
- Organization: University of Maryland, College Park
- References: <1992Aug29.191511.29259@riacs.edu> <trn.715289167@warper.jhuapl.edu>
- Date: Mon, 31 Aug 1992 22:22:16 GMT
- Lines: 12
-
- In article <trn.715289167@warper.jhuapl.edu> trn@warper.jhuapl.edu (Tony Nardo) writes:
- >I did not have access to the rotational speed of my drive, but 3600 seemed to
- >be a fairly common number. I used that, and it worked. Whether I guessed
- >correctly or whether the HP driver no longer uses this information, I cannot
- >say.
-
- From looking around in /usr/include/sys I would say that (at least on
- the 700's) that HP is using some variation of the BSD filesystem. This
- means that the rotation speed is used to allocate blocks in such a way
- as to minimize the rotational delay. If you get the speed wrong, all
- that happens is you don't get peak performance out of it.
-
-