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gtbX
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PostPosted: Sun Jul 19, 2009 2:26 am    Post subject: sgi Indigo2 hard disk options Reply with quote

I've got an Indigo2 that I want to install gentoo on, and am trying to figure out what kind of drives it takes. It came without any drives or sleds. The SCSI connectors look like the ones used in server machines (with power and signals in one connector) but I don't know if they're compatible.

Thanks
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poly_poly-man
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PostPosted: Sun Jul 19, 2009 2:44 am    Post subject: Reply with quote

Just make sure you have the right standard (scsi - lvd vs. hvd, etc.), and you'll be fine.

Post a pic of the connector - is it a backplane deal?
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gtbX
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PostPosted: Sun Jul 19, 2009 8:34 pm    Post subject: Reply with quote

The connector is identical to a scsi SCA 80 pin connector, but the drive tray converts that to 50pin scsi and a power connector like so

Can I just use regular SCA scsi drives in this machine (with some shims to make it fit right), or do I have to get one of these trays and an older 50 pin drive? I have no idea what kind of signalling the indigo2 uses (se, lvd...)

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poly_poly-man
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PostPosted: Mon Jul 20, 2009 12:33 am    Post subject: Reply with quote

that adapter seems to be (electrically - physically there's probably a difference) just a standard 50-pin->80-pin adapter... I haven't done much with scsi, but I do have a server that has all those different connectors in it :D

Just go for a SCA drive, but MAKE SURE that you don't put an LVD drive in an HVD system (vice-versa will just not work, rather than failing spectacularly)
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Galahad
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PostPosted: Sat Jul 25, 2009 11:32 am    Post subject: Reply with quote

DO NOT, I repeat DO NOT do this !!!!!

The mechanical SCA connector on the Indigo2 IS NOT an electrical SCA.

You need a drive sled for the indigo2 so you can use a hard drive!

By the way, linux on Indigo2 is not exactly easy or fast thanks to some bugs in the R10K CPU that have to be worked around by a special GCC option.
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gtbX
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PostPosted: Mon Jul 27, 2009 1:54 am    Post subject: Reply with quote

Thanks, that was what I was worried about. That, and I couldn't think of a way to secure the drive without the bracket. This is an R4400 Indigo2 which I understand has better Linux support anyway.
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ddc
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PostPosted: Tue Aug 18, 2009 9:35 am    Post subject: Reply with quote

Galahad wrote:
By the way, linux on Indigo2 is not exactly easy or fast thanks to some bugs in the R10K CPU that have to be worked around by a special GCC option.


it's not a bug, it's a problem related to the hw implementation around the cpu
anyway i have an impact system loaded with gentoo and i can confirm that the linux kernel is a pain in your ass with R10K
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