Greg Lehey wrote:
> > [ ... IBM DTLA drives ... ]
> 
> No, that wasn't me.

I didn't quote the full thing; that's what the brackets and ellipsis
was for.


> > IBM DTLA drives are known to rotate fast enough near the spindle
> > that the sustained write speed exceeds the ability of the controller
> > electronics to keep up, and results in crap being written to disk.
> 
> What about the cache?

Good point.  The cache is known to not actually flush to disk when
ordered to do so.  See the EXT3FS article on www.ibm.com/developerworks
for more details.


> > This is not often a problem with windows, the FS of shich fills
> > sectors in towards the spindle, so you only hit the problem when you
> > near the "disk full" state.
> 
> This sounds very unlikely.

I know, doesn't it?  Good thing Tom's Hardware is so thorough, or we
might never have known this, with everyone on the verge of discovering
it simply dismissing it as "very unlikely".  8^).

> > Do a Google/Tom's Hardware search to reassure yourself that I am not
> > smoking anything.
> 
> I think I'd rather put the shoe on the other foot.  This looks like
> high-grade crack.  Who was smoking it?

Tom's Hardware, IBM, CNET, Storave Review, etc..

http://www6.tomshardware.com/storage/00q3/000821/ibmdtla-07.html
http://www.storage.ibm.com/hdd/prod/deskstar.htm
http://computers.cnet.com/hardware/0-1092-418-1664463.html?pn=3&lb=2&ob=0&tag=st\.co.1092.bottom.1664463-3
http://www.storagereview.com/welcome.pl?/http://www.storagereview.com/jive/sr/thread.jsp?forum=2&thread=12485

I suggest the search:

        http://google.yahoo.com/bin/query?p=DTLA+drive+problem&hc=0&hs=0


> > It's because you have to reinstall, should you want to add a second
> > OS at a later date (e.g. Linux, or Windows).
> 
> So all dedicated installations are dangerous?   I would have to do
> that whether I had a Microsoft partition table or not if I had already
> used the entire disk for FreeBSD.

Yes.  I don't understand your point.


> > Your use is orthogonal to the most common expected usage, which is
> > disks shared between OSs on a single platform, rather than disks
> > shared between a single OS on multiple platforms.
> 
> Expected usage is to install once and then never change it.

No, expected usage is to purchase a machine with an OS preinstalled,
and then install FreeBSD/Linux/BeOS/other third party OS as an "also
ran", rather than the primary OS.

-- Terry

To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message

Reply via email to