Sometimes, it is difficult to recognize why SCSI drives are not recognized by MAC`s. To avoid confusion, please follow these steps when troubleshooting the PresSTORE jukebox configuration:|
- In case the jukebox was already configured before, clear the files /usr/local/aw/conf/dev/*. These are created when setting up the jukebox and might lead a new setup into a wrong direction.
- Set up the jukebox again. Check whether all drives are then recognized.
- Check the drive availability with the ioreg command by executing: ioreg -l -w 0 > ~/Desktop/iokit.txt This will create a text file named iokit.txt on the Desktop. In this file, jukeboxes shall be visible in the section "Peripheral Device Type" = 8 and tape drives shall be visible in the section "Peripheral Device Type" = 1.
In case a drive is not recognized by the ioreg utility, PresSTORE will not recognize it either. In this case, a hardware problem exists,
check the SCSI and power cabling. Note that you will have to reboot the Mac afterwards to detect the devices on the SCSI chain.
In case ioreg does show both drives and PresSTORE does not recognize the drives, try rebooting the Mac. The drive then was present at boot time but is no longer present. This effect may be caused by a SCSI reset. See also the following article:
SCSI devices inaccessible ...