Re: Maxtor full-height 5.25" drives of death

On 02/22/2018 07:45 AM, Ulrich Tagge via cctech wrote: > /Here is my list. 6x RD54 (Maxtor XT2190) >2x OK, 2x Media Error, 1x > Actuator Issue, 1x Head issue 3x RD53 (Micropolis 1325) >2x Actuator > issue, 1x actuator issue followed by spinning issue (speed sensor?) 1325s with head stuck will

Re: Maxtor full-height 5.25" drives of death

A tangential question out of curiosity: who here has 5.25" MFM drives they're extremely surprised are still working, and which model(s)? ... - John I¹m always surprised when I get my hands on an old st238 and it still works, the amplifiers were run out of spec on

Re: Maxtor full-height 5.25" drives of death

/Here is my list. 6x RD54 (Maxtor XT2190) >2x OK, 2x Media Error, 1x Actuator Issue, 1x Head issue 3x RD53 (Micropolis 1325) >2x Actuator issue, 1x actuator issue followed by spinning issue (speed sensor?) 4x Seagate ST251 >4x OK 3x Seagete ST225 >3x OK 3x IBM Type 068 >3x Dead On the 3.5"

Re: Maxtor full-height 5.25" drives of death

On Fri, 9 Feb 2018, js--- via cctalk wrote: A tangential question out of curiosity: who here has 5.25" MFM drives they're extremely surprised are still working, and which model(s)? I'll start. I've quite a few MFM drives, but the ones that really surprise me are (2) Seagate ST-506, and (2)

Re: Maxtor full-height 5.25" drives of death

On 02/09/2018 12:14 PM, allison via cctalk wrote: > > The grand daddy of them all is the RL02 salvaged in 1983 and still > running along with two packs from then. Its life was 9 years of > Monday through Friday power on and now intermittent about 5 times a > month since 1994. Still booting a

Re: Maxtor full-height 5.25" drives of death

On Fri, 9 Feb 2018, js--- via cctalk wrote: A tangential question out of curiosity: who here has 5.25" MFM drives they're extremely surprised are still working, and which model(s)? I'll start. I've quite a few MFM drives, but the ones that really surprise me are (2) Seagate ST-506, and (2) IMI

Re: Maxtor full-height 5.25" drives of death

On 02/09/2018 01:05 PM, js--- via cctalk wrote: > > > On 2/9/2018 12:25 PM, Chuck Guzis via cctalk wrote: >> On 02/09/2018 05:20 AM, allison via cctalk wrote: >> >>> At the other extreme I have over a dozen Quantum D540s (RD52 31mb full >>> height) >>> that are really old and getting older and

Re: Maxtor full-height 5.25" drives of death

On 2/9/18 10:05 AM, js--- via cctalk wrote: > A tangential question out of curiosity: who here has 5.25" MFM drives they're > extremely surprised are still working, and > which model(s)? Looking around after purging about 100 dead drives a few months ago.. CDC Wrens seem to be holding up OK,

Re: Maxtor full-height 5.25" drives of death

On 2/9/2018 12:25 PM, Chuck Guzis via cctalk wrote: On 02/09/2018 05:20 AM, allison via cctalk wrote: At the other extreme I have over a dozen Quantum D540s (RD52 31mb full height) that are really old and getting older and still work without issues. Some of those have sat on the shelf for

Re: Maxtor full-height 5.25" drives of death

On 02/09/2018 05:20 AM, allison via cctalk wrote: > At the other extreme I have over a dozen Quantum D540s (RD52 31mb full > height) > that are really old and getting older and still work without issues.  > Some of those > have sat on the shelf for a decade and work fine when I need one. I've

RE: Maxtor full-height 5.25" drives of death

gt; > Subject: Re: Maxtor full-height 5.25" drives of death > > On 2018-02-08 21:05, Ian via cctalk wrote: > > On Feb 8, 2018, at 11:03, Tom Gardner via cctalk <cctalk@classiccmp.org> > wrote: > >> > >> XT2190 was first produced in 3Q 1984 and last produce

Re: Maxtor full-height 5.25" drives of death

On 2018-02-08 21:05, Ian via cctalk wrote: > On Feb 8, 2018, at 11:03, Tom Gardner via cctalk > wrote: >> >> XT2190 was first produced in 3Q 1984 and last produced in 1989 which gives >> yours a remarkable life span and well beyond the them at most 5 year >> warranty. >>

Re: Maxtor full-height 5.25" drives of death

On 02/08/2018 10:17 PM, Glen Slick via cctalk wrote: > Any idea if the drive orientation during storage might make any > difference in the failure rate? Usual PCB side down, PCB side up, > either side down, either end down? My guess it that it is best to > store them in the usual PCB side down

Re: Maxtor full-height 5.25" drives of death

Any idea if the drive orientation during storage might make any difference in the failure rate? Usual PCB side down, PCB side up, either side down, either end down? My guess it that it is best to store them in the usual PCB side down orientation, but that is just a guess.

Re: Maxtor full-height 5.25" drives of death

On 2/8/18 4:03 PM, Ian via cctalk wrote: > > I don’t have a lot of background here- what goes wrong with them? > I have been told a common failure mode was for them to open. Maybe something bad happens between the platter and head over time (metal-metal corrosion)? And who knows what sort

Re: Maxtor full-height 5.25" drives of death

> >> On 02/08/2018 12:28 PM, Al Kossow via cctalk wrote: >> >> Little concrete analysis has actually been done on these drives that has >> been released outside the >> drive recovery shops. Al, thanks for the thoughtful response- I was genuinely unaware heads could simply fail outside of the

Re: Maxtor full-height 5.25" drives of death

On 02/08/2018 12:28 PM, Al Kossow via cctalk wrote: > > > On 2/8/18 12:05 PM, Ian via cctalk wrote: >> it seems no one on the list is interested in discussion beyond anecdotes >> when it comes to 80s hardware. >> > > Little concrete analysis has actually been done on these drives that has been

Re: Maxtor full-height 5.25" drives of death

To: "Tom Gardner" <t.gard...@computer.org>; "General Discussion: On-Topic and Off-Topic Posts" <cctalk@classiccmp.org> Sent: Thursday, February 08, 2018 3:05 PM Subject: Re: Maxtor full-height 5.25" drives of death On Feb 8, 2018, at 11:03, Tom Gardner via cctalk

Re: Maxtor full-height 5.25" drives of death

On 2/8/18 12:05 PM, Ian via cctalk wrote: > it seems no one on the list is interested in discussion beyond anecdotes when > it comes to 80s hardware. > Little concrete analysis has actually been done on these drives that has been released outside the drive recovery shops. I would suspect

Re: Maxtor full-height 5.25" drives of death

On Feb 8, 2018, at 11:03, Tom Gardner via cctalk wrote: > > XT2190 was first produced in 3Q 1984 and last produced in 1989 which gives > yours a remarkable life span and well beyond the them at most 5 year warranty. > Be thankful they lasted this long. Good point. The

RE: Maxtor full-height 5.25" drives of death

XT2190 was first produced in 3Q 1984 and last produced in 1989 which gives yours a remarkable life span and well beyond the them at most 5 year warranty. Be thankful they lasted this long. Tom -Original Message- From: Ian Finder [mailto:ian.fin...@gmail.com] Sent: Wednesday, February

Re: Maxtor full-height 5.25" drives of death

behalf of Ian Finder via cctalk <cctalk@classiccmp.org> Sent: Wednesday, February 7, 2018 11:50:09 AM To: allison; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Maxtor full-height 5.25" drives of death > Drives of the day were power hungry and ran hot. Heat is a killer.

Re: Maxtor full-height 5.25" drives of death

> Drives of the day were power hungry and ran hot. Heat is a killer. Yes, certainly heat is why these drives go onto a shelf working and come off of it broken with servo and head amplifier problems at an astonishing rate far higher than their contemporary brethren. It also helps answer my

Re: Maxtor full-height 5.25" drives of death

On 2/7/18 2:36 PM, Ian Finder via cctalk wrote: XT2190s, XT1140s, some of the early ESDI disks... I have 6 XT2190s at home, and maybe one of the damn things works. Does anyone out here know, beyond speculation, what some of the common failure modes of these drives are? I'm not opposed to