SCSI controller deadzones?

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DanielSmedegaardBuus
Posts: 26
Joined: 20. Jan 2011, 21:42
Primary OS: MS Windows XP
VBox Version: OSE other
Guest OSses: Ubuntu

SCSI controller deadzones?

Post by DanielSmedegaardBuus »

Hi :)

I'm attaching 12 drives as raw devices to a virtual SCSI controller. When attaching them, VirtualBox will just add them sequentially, so that - including my virtual .vdi system boot drive - it's using ports 0 through 12 by default.

However, when I boot into my Ubuntu Server guest OS, only 11 of the raw disks show up. The one attached to SCSI 0:7 is gone. If I avoid port 7 altogether, and leave it unused instead using ports 0 through 6 and 8 through 13, all drives show up as expected.

I've never used a real physical SCSI device, so I don't know if this is expected? As in, it's a reserved port or something like that.

Any insight on this?
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Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: SCSI controller deadzones?

Post by Perryg »

On metal the SCSI ID for the host adapter is 7, so it stands to reason that you should not use it in the chain.
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DanielSmedegaardBuus
Posts: 26
Joined: 20. Jan 2011, 21:42
Primary OS: MS Windows XP
VBox Version: OSE other
Guest OSses: Ubuntu

Re: SCSI controller deadzones?

Post by DanielSmedegaardBuus »

Good to know, thanks! :)

Gonna report it as a bug, then.
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