On Thu, Feb 07, 2008 at 11:24:14PM -0500, Nick Holland wrote:
 
> I've warned you about a lot of them, you ignored that, but for some reason
> I feel obligated to try one more time.  I just hate to see people do things
> like this to themselves (and I want to be able to say, "No, not interested
> in helping on this" in clear conscience).

Thanks Nick,

I didn't ignore it, but you weren't this specific.  

> 
> For that kinda money, they better be delivering it...and helping you get
> it on the rack.
> 

Yeah.  I know.

> Old Compaqs are an art.  Old Compaq servers are a black art.  They are
> some of the quirkiest, strangest, and most obnoxious systems I've worked
> with.  Kinda like a Cisco switch, in that once you get the dang thing
> running the way you want, you feel so great because the pain stopped, so
> you tend to forget it just shouldn't have been that way.
> 
> I've yet to see a multi-Pentium and only one Multi-PPro machine run
> OpenBSD/SMP. (score is at least two Pentiums and two PPros that didn't
> work with SMP),
> 

I know that there's no SMP.

> I suspect our EISA support has suffered severe bit rot.  Between the
> system and the bus, I'd be rather surprised if you got the thing running
> OpenBSD (pleasantly surprised, yes, but surprised).  If you do, please
> post dmesg. :)  I just looked through the dmesg log, I saw no Pentium
> class EISA machines that people sent dmesgs from.  I saw a few PPro
> systems, one PPro running GENERIC.MP, several Alphas and HPPA systems.
> 

I haven't investigated EISA.  These boxes are supposed to be a
combination of PCI and EISA.  I would be using the PCI slots.  However,
I suppose that some things internally would be on the EISA bus (e.g.
keyboard, floppy drive).

> The CMOS battery is dead (or will be soon).  It isn't going to be easy
> to replace.  See the SPARC Battery FAQ and the part about cutting into
> the old CMOS chip to solder in your own battery (it works, done it on a
> SS2 and a mvme88k, worked.  I also seem to have toasted another mvme88k
> doing the same thing, but I didn't pay $300 for that machine.  BTW:
> I'm way out of practice, but I'm still much better than your average
> $5 soldering iron novice, I used to do component-level repair on
> computers and other such things.  I got good equipment and I sorta know
> what I'm doing...and I still managed to break the CPU board on the
> mvme88k.
> 

The service manual for these boxes has a section on adding an external
battery and there's supposed to be a socket/pin-pair on the motherboard
to accept the batttery.  Presumably (hopefully??) a lithium button
battery of the same number of cells as the orgional should fit.

But that is a lot of "shoulds" and "hopefullys" for a non-free box.

> EISA isn't fun when it works properly.  I've probably config'd more EISA
> machines than most people on this list, trust me, it's not fun.  If you
> have never done it before, the time to learn was back in the 1980s, not
> now.  WITH THE RIGHT TOOLS, Compaqs were some of the easiest to configure,
> but finding the right tools was exciting last time I tried.  When it
> DOESN'T work properly...ew.
> 

Is it worse than ISA?  Have that on my 486 with no PCI on which to
fall-back.

> No disks...you better hope they include the Compaq config utilities on a
> CD so you can install 'em and configure the thing.  I've done it from
> floppies, Not Fun.  I screwed up the disk config, reinstalled.  More Not
> Fun.  I think I did this three or four times.  I did learn disk OpenBSD
> disk configuration Really Well, so I guess it was a good, not fun thing.
> 
> Hope they include disk trays.  There are a lot of old servers laying
> around, there are a lot of old disk trays.  The servers and disk trays
> are rarely in the same place.  No idea how that happens.  There are
> several variations of Compaq disk trays, not sure how cross compatible
> they are. (68 pin drives, 80 pin (SCA) drives, 1" drives, 1.6" drives).
> 

That is an open question which would have to be solved prior to
purchase.  

> Did I mention that Compaqs config the disk array using the utility
> partition or the utility CD?  I have a stack of cac(4) cards.  Spent a
> day or so building an array on a Windows machine, moved it to the
> target machine, and then discovered that cac(4)s are really, really slow.
> BTW: don't think that because you use SCSI, you don't have to worry about
> disk size.  Expecting to build a 1TB disk array on a 15 year old
> controller may expose some "issues."
> 

I found the config utilities on the website.  I don't yet know re
"issues".  I wasn't planning a 1 TB array, more like 300 GB or so.

> <speculation>
> Old cac's have some kind of battery on them, they look like large lithium
> cells.  They don't really look like rechargeable.  Even if they are,
> they are so old, they are probably dead on yours (and mine).  That may
> be why my cac(4) experience was so uninspiring, or it may just mean the
> things will toast your file systems when the power goes out unexpectedly.
> </speculation>
> 

Anoter battery to replace.

> Read, memorize, live by:
>    http://www.openbsd.org/faq/faq4.html#cpq16m
> "some" most likely includes you.
> 

I just re-read it.  I've had that on some old boxes on Debian where you
have to specify ram size on the kernel command line.

> Three words: "Power Hungry Pig".
> 

Yeah.

> 
> Bringing up an old workstation is usually just a matter of taking your
> PC skills and remembering a little history.  Bringing up an old server
> is a test of patience.  Bringing up an old Compaq is a little like
> restoring a rusty old car, 'cept none of the neighbors walk by and say,
> "wow, that's cool".
> 

I hear you.

> One of my favorite dis-features of the Compaq servers of around that
> era was a case interlock: remove the cover and the thing would save
> itself from...what, eventually overheating and maybe crashing?...by
> immediately turning itself off.  (I discovered this disfeature at a
> client's site -- I was sent in to do a server upgrade.  Never seen
> the system before, had zero trust that they had sent me with the
> right parts.  So, about 15 minutes before scheduled "get out of the
> system" time, I started gently sliding the cover off the machine, so
> that if something was clearly not right, we could cancel with minimal
> impact on the users.  I missed the big, bright blue(?) warning sticker.
> "Click" and silence, followed by me saying, "oh shit", thinking of
> all those people working frantically to get their work done before
> the shutdown time...)  HOWEVER, in your case, you might actually
> prefer that it does shut itself off if you break the RF shielding. :)
> 
> 
> If you really want to go that route, look at what the machines are
> SELLING for on e-bay, not what people are asking for them.  BIG
> difference.  Offer $50 to the person asking $300 for the machine,
> you will probably get a "no way in hell", and the machine a couple
> weeks later. :)
> 
> Nick.
> 

Thanks Nick.

Doug.

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