Install of nv77x86 onto USB drives gives SCSI transport errors @ newfs time

From: Noel Milton Vega (nmvega@ComputingArchitects.Com)
Date: Fri Dec 07 2007 - 00:46:52 EST


Hi:

I decided to install Solaris10 nv77 onto 300GB Seagate drives connected
to my Dell XPS-720 via USB interfaces (plural because I have two of these
drives,
model ST3300631A).

I proceed through the installation menus but when suninstall initiates
mkfs/newfs
during the "Creating filesystems" phase, it hangs on the first slice
(c0t0d0s0).
But it gave no indication as to why.

So I reboot my machine and direct the menu to take me to a SHELL
prompt. From there I can do an fdisk, format, and newfs, but only
intermittantly... Problem? SCSI transport errors "tran_err" or "timeout".
So it wasn't the installer.

I attempted newfs on both of these drives, which are connected to different
USB ports. Both fail... newfs starts but immediately hangs due to these
SCSI errors.

I checked the cabling, and they are secure. The length of the cables
themselves
are the typical lengths (about 4 feet).

I don't get it.

I know I installed Solaris (nv49 or something) on these same two disks
before, but that was when they were attached to my laptop.

Any ideas? Again the problem is SCSI transport errors I guess triggered by
I/O access to these USB attached drives. Thanks in Advance.

Noel Milton
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