Re: PATA hard disks, anyone?

On 03/27/2018 08:27 PM, dwight wrote: > I recall at one company we used Micropolous ( SP? ) drives. We had > almost 100% failure in less than 6 months. It did our company a lot of > damage. A lot of outfits (e.g. Sun, HP) used Micropolis drives. Generally, they were good, but expensive. Maybe

Re: PATA hard disks, anyone?

I recall at one company we used Micropolous ( SP? ) drives. We had almost 100% failure in less than 6 months. It did our company a lot of damage. Dwight From: cctalk on behalf of Chuck Guzis via cctalk

Re: RAID? Was: PATA hard disks, anyone?

On 2018-03-27 10:05 PM, Ali via cctalk wrote: Original message From: Fred Cisin via cctalk Date: 3/27/18 5:51 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" Subject: RAID? Was: PATA hard disks,

Re: PATA hard disks, anyone?

Hitachi 3 and 4tb are VERY good, as are the equivalent Toshiba from when WD divested themselves of the Hitachi hi-end line. Been runnning 4 HGST 4TB for a long while now at home and have been really happy. My best disks. 1tb was the switchover point to vertical recording, so those (and esp

RE: RAID? Was: PATA hard disks, anyone?

Original message From: Fred Cisin via cctalk Date: 3/27/18 5:51 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" Subject: RAID? Was: PATA hard disks, anyone? How many drives would you need, to be

RAID? Was: PATA hard disks, anyone?

Well outside my realm of expertise (as if I had a realm!), . . . How many drives would you need, to be able to set up a RAID, or hot swappable RAUD (Redundant Array of Unreliable Drives), that could give decent reliability with such drives? How many to be able to not have data loss if a

Re: PATA hard disks, anyone?

> Interesting but consistent with my informal observations. My Hitachi > enterprise class 4gb hdd are still going strong after multiple power > outages and almost 5 years of 24x7 on time. Granted not much reading > and writing occurs but the fact that they are spinning is probably > the biggest

WTB Sun keyboard

Hi, My keyboard is dying. I'm looking for a type 7 "UNIX Keyboard" model : 320-1367-02 Picture : https://imgur.com/JUumgkz I'm in Paris, France. Thanks -- stéphane

Re: PATA hard disks, anyone?

Original message From: Chuck Guzis via cctalk Date: 3/27/18 4:43 PM (GMT-08:00) To: "Tapley, Mark via cctalk" Subject: Re: PATA hard disks, anyone? Digging around on the pointer from Al to backblaze, I found this,

Issues of Communication of the ACM for sale

Hi, I'm selling issues of the famous ACM magazine. I don't have a list, but at least from 2010 and up. If you're not in a hurry, shipping cost is quite low, < 6 euros for 2 Kg, < 8 for 3 Kg. Shipping from Paris, France. Note that if you're in France, shipping is more expensive ! If you're

Re: PATA hard disks, anyone?

Digging around on the pointer from Al to backblaze, I found this, which, to me is far more meaningful in terms of presentation of data: https://hackernoon.com/applying-medical-statistics-to-the-backblaze-hard-drive-stats-36227cfd5372 --Chuck

Re: PATA hard disks, anyone?

On 03/27/2018 04:04 PM, Al Kossow via cctalk wrote: > > Hitachi 3 and 4tb are VERY good, as are the equivalent Toshiba from when WD > divested themselves > of the Hitachi hi-end line. Hmmm, I haven't actually installed a 1TB drive in any mission-critical equipment yet--still sitting in

Re: PATA hard disks, anyone?

On 3/27/18 12:44 PM, Chuck Guzis via cctalk wrote: > Am I being silly? Hitachi 3 and 4tb are VERY good, as are the equivalent Toshiba from when WD divested themselves of the Hitachi hi-end line. 1tb was the switchover point to vertical recording, so those (and esp seagate 1.5tb) are

Re: RL02 Question

>> So, from what I can see, the drive should spin up correctly, but for >> some reason it goes into fault mode. I am right in thinking that upon >> load, the heads should continue moving forward until the first track is >> found, right? I should not have to perform a seek manually

Re: RL02 Question

On 03/27/2018 03:22 PM, Aaron Jackson wrote: > So, from what I can see, the drive should spin up correctly, but for > some reason it goes into fault mode. I am right in thinking that upon > load, the heads should continue moving forward until the first track is > found, right? I

Re: PATA hard disks, anyone?

Are they functional or decorative? 3TB Seagate They will likely fail. Defective model. Know someone that doesn't even RMA them, straight to trash. Replaces them with WD. (Note that all Seagate models have the issue, just something wrong with a 3TB model.) - Ethan

Re: PATA hard disks, anyone?

Eric, my 17 yo son is building up a gaming computer out of a Mac Pro. If you are serious about getting rid of these, I might encourage him to set up a Raid 5 with 3 of them and 1 or 2 spares. I would think it would read and write pretty fast until it broke, and then he could transition

Re: PATA hard disks, anyone?

On Tue, 27 Mar 2018, Chuck Guzis via cctalk wrote: It's probably foolish and irrational, but I somehow just don't trust the bargain-basement 4TB drives to perform long-term. Am I being silly? Not really. Have you looked at the drive statistics published by Backblaze? Here's a report for

Re: PATA hard disks, anyone?

On 03/27/2018 09:19 AM, Ethan via cctalk wrote: > I have a hook-up to get some older drives from another company (1.5TB, > etc) and well... let's just say that "newer" used disks with 4 years on > them aren't very reliable. I'd imaigne the older ones hold up much > better since they were more

Re: PATA hard disks, anyone?

From: "cctalk" To: et...@757.org, "cctalk" Sent: Tuesday, March 27, 2018 11:48:22 AM Subject: Re: PATA hard disks, anyone? On Tue, Mar 27, 2018 at 10:19 AM, Ethan via cctalk wrote: and well... let's just say that "newer"

Re: RL02 Question

So, from what I can see, the drive should spin up correctly, but for some reason it goes into fault mode. I am right in thinking that upon load, the heads should continue moving forward until the first track is found, right? I should not have to perform a seek manually from the

Re: PATA hard disks, anyone?

Are they functional or decorative? From: "cctalk" To: et...@757.org, "cctalk" Sent: Tuesday, March 27, 2018 11:48:22 AM Subject: Re: PATA hard disks, anyone? On Tue, Mar 27, 2018 at 10:19 AM, Ethan via cctalk wrote:

R: PATA hard disks, anyone?

"that" bad ? :S . -Messaggio originale- Da: cctalk [mailto:cctalk-boun...@classiccmp.org] Per conto di Eric Smith via cctalk Inviato: martedì 27 marzo 2018 20:48 A: et...@757.org; General Discussion: On-Topic and Off-Topic Posts Oggetto: Re: PATA hard disks, anyone? On Tue, Mar 27,

Re: PATA hard disks, anyone?

On Tue, Mar 27, 2018 at 10:19 AM, Ethan via cctalk wrote: > and well... let's just say that "newer" used disks with 4 years on them > aren't very reliable. > If anyone wants some Seagate ST3000DM001 drives (3TB SATA), I've got extras! :-(

Re: DTC 3250

Hi Fred, I could use one. Thanks! Todd ⁣Sent from BlueMail ​ On Mar 26, 2018, 4:36 PM, at 4:36 PM, Fred Cisin via cctalk wrote: >I just stumbled on a DTC3250, & "Installation Guide" >8 bit ISA SCSI + 4 floppy > >Firmware: "GSH53A" > >The floppy interface MIGHT work

Re: PATA hard disks, anyone?

On 03/27/2018 09:19 AM, Ethan via cctalk wrote: > Yep! I've watched thousand(s) of pounds of working hard drives get > shredded. This is nothing new. In the 1970s, the official CDC diktat was to reduce any surplused equipment to scrap. That included taking a sledgehammer to disk drives and

RE: Compaq 9000 Series Rack Screws

> In my case it was a simple job to chuck a few of the screws in the > lathe and skim the heads down by 1 or 2 mm overall diameter, but it > would not have been much more effort to put them in a an electric drill > chuck and hold a file against them. If you can't find the correct ones > perhaps

Re: RL02 Question

There's another option if you're near Manassas VA (roughly DC area): https://www.ebay.com/itm/VINTAGE-Digital-DEC-RL02-A-Rack-Mount-PDP-11-Disk-Subsystem-Cartridge-Drive/401453950361?hash=item5d78852599:g:480AAOSwuNBZlG8W Look at the pictures. It's in sad shape but if you look closely it looks

Re: PATA hard disks, anyone?

The advantages of working for a small company... the sysadmin is a long-time employee who's just moved into that role, he and I are good buddies. And there's not anything worth $$$ data recovery on them anyway. I hate seeing perfectly good working equipment reduced to low-value scrap, so I'm

Wiring Harnesses (was: RL02 Question)

Years ago I was troubleshooting an old SuperMicro beast that was running a newspaper printing press. It kept shutting down randomly but if I hit the power button it would come up. Then randomly go down again minutes or an hour later. I spent many hours testing and swapping modules in and out of

Re: RL02 Question

My inventory indicates that I have a pair of lower ("UP") heads, part number 70-15637 for an RL02. (I don't have any spare "DOWN" heads as far as I can tell). I think they might even be new old stock, as they are marked "NEW" in my inventory. So maybe we could work something out. You might

Re: RL02 Question

On 03/27/2018 05:34 AM, Aaron Jackson wrote: >> On 03/26/2018 04:08 PM, Aaron Jackson via cctalk wrote: > So, from what I can see, the drive should spin up correctly, but for > some reason it goes into fault mode. I am right in thinking that upon > load, the heads should continue

RE: Compaq 9000 Series Rack Screws

Ali said >> F.Y.I. the links to the pictures from the linked to page aren't >> publicly accessible. > > As grant has pointed out the pictures will not show up unless you are a VCF > member. However, the screws are very similar to this in shape: > >

Re: RL02 Question

> On 03/26/2018 04:08 PM, Aaron Jackson via cctalk wrote: So, from what I can see, the drive should spin up correctly, but for some reason it goes into fault mode. I am right in thinking that upon load, the heads should continue moving forward until the first track is found,

RE: Compaq 9000 Series Rack Screws

> F.Y.I. the links to the pictures from the linked to page aren't > publicly accessible. As grant has pointed out the pictures will not show up unless you are a VCF member. However, the screws are very similar to this in shape: