A pair of ST19171Ws were pulled from a (failed*) Seagate AV professional external drive case attached to a 9600/200. After ID settings and termination adjustments as per the relevant Seagate web page, they were connected to the internal bus of the Adaptec SCSI card inside the 9600. One drive works fine, the second appeared once on Apple System Profiler but would not initialise or mount.
How can one be absolutely certain that the second drive is beyond resuscitation?
* The unit used to show up on the desk top as a single 18 Gb drive (array?) but intermittently disappeared. Eventually it would not show up at all.
How can a pair of drives be configured to appear as a single drive?
Ahm a little late on repling, but what the heck...
The drives are tied together as a RAID set (array). The first drive of the set mounts because it has TOC info on it (table of contents). The second drive doesn't mount because it just points to the first drive, and the drivers you're using aren't RAID-aware.
The first drive thinks it's bigger than it really is, so if you use it as-is, you will eventually loose data. You need to re-initialize it (Finder's Erase command).
The second drive will "revive" if it's given a TOC. Try re-initializing (Finder's Erase command) it. If that fails, reformat it with Apple's Drive Setup utility or a 2rd party formatter, such as FWB's Hard Disk ToolKit.
HTH, - Dan.
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