Sun's funky IDE

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Grummun
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Sun's funky IDE

Post by Grummun » Fri Dec 16, 2005 1:45 pm

Last few days I've been working on recovering a Sun U10 workstation that suffered a disk crash. It's a 'cheap' (as Suns go) desktop with IDE drives; it had two drives with all the partitions mirrored using Sun's software RAID solution (DiskSuite, they calls it). Anyway, one drive departed for the hereafter, so I was trying to boot the thing off the remaining drive, and after a lot of screwing around, discovered something funny about the IDE inrerface on this machine: if there is a bad drive connected to the IDE cable, the machine won't recognize any drives on that IDE channel, and I think the same applies if there is a drive that is connected, but not powered. That is darn strange; regular PC IDE interfaces don't act that way. :-?

Not like I expect this will do anyone any good, but when you piss 2.5 days into learning something non-intuitive, it seems like you should tell someone about it. :D

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Re: Sun's funky IDE

Post by [NME]T-Bone » Fri Dec 16, 2005 3:20 pm

Grummun wrote:it seems like you should tell someone about it. :D
...or at least ask someone? :lol:

how old was the machine? seems to me that ide used to do this before e-ide/ata-2 specs came out.
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Re: Sun's funky IDE

Post by Grummun » Fri Dec 16, 2005 4:22 pm

[NME]T-Bone wrote:
Grummun wrote:it seems like you should tell someone about it. :D
...or at least ask someone? :lol:

how old was the machine? seems to me that ide used to do this before e-ide/ata-2 specs came out.
That's a possibility, I guess... machine was prolly originally purchased 2000-2001 timeframe. It works with a 60Gb HD, if that means anything.

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Post by [NME]Llama_Being » Sat Dec 17, 2005 9:19 pm

Its not a Blade workstation is it?

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Post by Grummun » Sun Dec 18, 2005 3:35 pm

[NME]Llama_Being wrote:Its not a Blade workstation is it?
Nah, it's an Ultra 10, basically Sun's version of a low-end desktop. PCI motherboard with onboard IDE, video and ethernet. 4 DIMM slots and a 400Mhz UltraSPARC CPU. To look at it, you'd think it was a x86 motherboard, but it doesn't have a typical BIOS; I don't know what Sun calls it, but it's got a command-line interface that is pretty puzzling.

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Post by [NME]T-Bone » Sun Dec 18, 2005 8:07 pm

cli? you mean the boot/diagnostic prom like the one when you hit stop-a?
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Post by Grummun » Sun Dec 18, 2005 9:56 pm

[NME]T-Bone wrote:cli? you mean the boot/diagnostic prom like the one when you hit stop-a?
Yup, the ol' Stop-A gig exactly.

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Post by [NME]T-Bone » Mon Dec 19, 2005 8:35 am

you can type help to get a list of commands, but it's kind of limited. it's mostly for diagnostics/repair. if you want access to all the commands, just change the state to single user mode and log in as super.
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