Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-10 Thread Mike Smith
: 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. I would adssume it actually the tracks FURTHEREST from the spindle..

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-10 Thread Matthew Dillon
: Wouldn't the linear speed be faster closer to the spindle at 7200 RPM : than at the edge? : :The stunning ignorance being displayed in this thread appears to have :reached an all-time low. : :*sigh* Ah, another poor soul who didn't read the first sentence of tuning(7).

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-10 Thread Terry Lambert
David W. Chapman Jr. wrote: : 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. I would adssume it actually the tracks

Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Greg Lehey
On Sunday, 9 December 2001 at 22:52:58 +1030, Daniel O'Connor wrote: On 09-Dec-2001 [EMAIL PROTECTED] wrote: (The other day a coworker of mine wanted to use DD for some IBM DTLA disks, because he'd heard that the disks performed better that way - something to do with scatter-gather not

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Terry Lambert
Greg Lehey wrote: [ ... IBM DTLA drives ... ] 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. This is not often a problem with windows, the

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Greg Lehey
On Sunday, 9 December 2001 at 18:46:24 -0800, Terry Lambert wrote: Greg Lehey wrote: [ ... IBM DTLA drives ... ] No, that wasn't me. 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

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Terry Lambert
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

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Terry Lambert
Greg Lehey wrote: [ ... DTLA drives ... ] 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? For your further amusement, here is a pointer to

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Matthew Dillon
On google search for: deskstar 75gxp class action http://www.theregister.co.uk/content/54/22412.html http://www.pcworld.com/news/article/0,aid,67608,00.asp etc... So apparently my warning about these drives in 'man tuning' is still appropriate :-)

IBM DTLA drives (was: Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c) )

2001-12-09 Thread Peter Wemm
Matthew Dillon wrote: : etc... So apparently my warning about these drives in 'man tuning' is : still appropriate :-) : :-Matt : : : IBM DTLA drives are known to rotate fast enough near the spindle : : that the sustained write speed exceeds

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread David W. Chapman Jr.
On Sun, Dec 09, 2001 at 06:46:24PM -0800, Terry Lambert wrote: It's because you have to reinstall, should you want to add a second OS at a later date (e.g. Linux, or Windows). I think it has more to do with the drive going on a new motherboard that might not boot with dangerously dedicated

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Terry Lambert
David W. Chapman Jr. wrote: On Sun, Dec 09, 2001 at 06:46:24PM -0800, Terry Lambert wrote: It's because you have to reinstall, should you want to add a second OS at a later date (e.g. Linux, or Windows). I think it has more to do with the drive going on a new motherboard that might not

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread David W. Chapman Jr.
: 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. I would adssume it actually the tracks FURTHEREST from the spindle..

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Peter Wemm
David W. Chapman Jr. wrote: : 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. I would adssume it actually the tracks

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Peter Wemm
David W. Chapman Jr. wrote: On Sun, Dec 09, 2001 at 06:46:24PM -0800, Terry Lambert wrote: It's because you have to reinstall, should you want to add a second OS at a later date (e.g. Linux, or Windows). I think it has more to do with the drive going on a new motherboard that might not

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Andrew Kenneth Milton
+---[ David W. Chapman Jr. ]-- | : 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. | | | I would

Re: Dangerously dedicated yet again (was: cvs commit: src/sys/kern subr_diskmbr.c)

2001-12-09 Thread Greg Lehey
On Sunday, 9 December 2001 at 22:44:52 -0800, Peter Wemm wrote: 3) You get a system lockup when booting the *computer* if *any* DD disk is attached anywhere at all. This is what killed the Thinkpad T20*, A20*, 600X etc. After all the yelling we did at IBM, it turned out to be