I have a 1.25GHz MDD DP that has been running happily for a couple of
years from a single 80GB IDE drive on the ATA100 cable. The drive is
almost full now so I decided to try implementing my longer term plan
yesterday, which is to use my ATTO UL3D card and a SCSI drive for the
system and apps and to link back to my user folder on the ATA100 drive
so I don't have to copy those files to anywhere else. So, I put in the
ATTO card and the SCSI drive and restarted while zapping the PRAM. The
drive was immediately recognized on start-up as an unreadable disk and
Disk Utility offered to in initialize it, which went fine. Then I used
CCC to copy over my older backup image of the 80GB IDE drive with most
of the apps on it to the SCSI drive. That went fine and resulted in a
bootable drive. I ran booted from the SCSI drive and updated the system
to the latest 10.4.11 specs, and linked over to the user folder on the
IDE drive. This worked nicely and I had my same old desktop working on
the new SCSI drive. Cool!
Now, the other part of the longer term plan was to move the iPhoto
library off to another disk. I have two 1120GB IDE disks that are
installed in the front bay and I plugged them into the power and ATA66
cable there. Upon rebooting the computer launched from the orginal 80GB
IDE system drive and the SCSI drive had disappeared. There was no
message about an unreadable disk inserted. Disk Utility detects it but
can not do anything with it. Something about a Journal error came up
when I Googled the error message. Even Disk Warrior can not repair the
directory now.
So this morning I did an experiment. I disconnected the front drives on
the ATA66 bus and restarted. The message that an unreadable disk was
inserted" came up. This did not happen during any restarts while drives
were on the front bus. I tried initializing the SCSI disk but Disk
Utility is reporting an I/O error now and can't do anything. Same with
Disk Warrior.
Can any of you think of any reason why having drives on the ATA66 bus
is incompatible with having a SCSI drive?
I can always use an external FW drive to hold the iPhoto library, but it
seems a shame that the two 120GB IDE drives can't be used.
Bruce
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