Re: SCSI vs SATA hard disks

In article <87vdwm9ssc.fsf@xxxxxxxxxxxxxxxxxxxxxxx>,
Haines Brown <brownh@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
ebenZEROONE@xxxxxxxxxxx (Hactar) writes:

In article <87zllz9iip.fsf@xxxxxxxxxxxxxxxxxxxxxxx>,
Haines Brown <brownh@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

An issue that has always troubled me is the optimal sequence of
partitions. For example, /swap is supposed to be located in relation to
the physical disks on the hard disk, but I never knew how to do
that. Howver, I'm not sure it makes any difference any more.

Why wouldn't it make any difference? What I wonder is: are disk
cylinder numbers arranged like

Yes, but how does one know what the physical platter limits are so that
one can put a partion near the edge?

Also, these days, I assume one does not normally use swap space,

I do (is that bad?), and there has been some discussion on whether
running without it is a good idea. (Conclusion: No, but not fatal.)

and so what effect would its location normally have? What partitions
need to be near the platter edges?

As you said, how do you tell what the platter edges' numbers _are_
without getting the source to the drive's firmware?

One part of my brain says swap should be near an edge to make for faster
transfers; another part says it should be toward the middle to increase
the chance that the head will pass over it when servicing other
requests. Same goes for /usr or other things for which output rate is
important.

--
-eben QebWenE01R@xxxxxxxxxxxxxxxxx royalty.mine.nu:81
PISCES: Try to avoid any Virgos or Leos with the Ebola
virus. You are the Lord of the Dance, no matter what those
idiots at work say. -- Weird Al, _Your Horoscope for Today_
.

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