SCSIInfo is a Control Panel document which provides a comprehensive table of information about each SCSI device attatched to your computer. SCSIInfo works consistently with System Software versions 6.03 - 7.0. In addition to the standard Reset, Scan, and Mount functions provided, SCSI info can be used to diagnose various problems you may be having with your hard disks. Pay particular attention to the descriptions below of each data field.
Vendor: Who made it?
Model: What did they call it?
Version: What is the firmware version?
SCSI ID: The SCSI address of the device this information pertains to.
Sectors: Total number of sectors for the entire device.
Capacity: How many Kbytes of information this device can store.
Cylinders: How many data cylinders does this device contain?
Free Space: Total unused space on this device in Kbytes. Note that in
some cases value indicates only the free space of the 1st
partition.
Initialized: When this device was last initialized.
Backed up: When this device was last backed up. This value will say
"Never!!" if you have not backed up since the disk was
initialized. Also note that some backup programs do not
properly set the backup flag in the Volume Information
Block. In this case, SCSIInfo will report "Never!!".
Interleave: The interleave used when this device was formatted.
Bytes/Sector: This will normally read 512 under the Macintosh operating
system.
Heads: The number of read/write heads this device uses.
Boot Version: Apple's version of the Boot Blocks currently installed on this disk. '0' indicates this to be a non-bootable disk. This information is irrespective of any System software which may be installed. If you have a disk which contains a System Folder, but has a Boot Version of '0', you will still be unable to boot from that disk. Conversly, a disk with valid Boot Blocks will not boot if there is no System Folder installed. As you may have guessed, the boot version IS specific to the System version. Thus you should ALWAYS use Apple's Installer to install System software. NEVER copy a System Folder. The Installer automatically writes the appropriate Boot Blocks at install time.
Factory Defects: A list of how many bad blocks were locked out during the
Original factory Format. These bad blocks are due to
imperfections in the surface of the disk and data will never
be written to them.
User Defects: The total number of bad blocks encountered on subsequent
formats. These defects are largely due to the drive
geometry changing as the drive ages. As with Factory
Defects, these blocks have been locked out from use, and
data will not be written to them.
System Version: The System version you are currently using.
Drive Icon: The SCSIInfo Icon will change to the drive's icon when a
device is selected.
Drive Name: Right after the Icon, The name of the 1st volume at the
current selected SCSI address will be displayed.
In addition to the standrd table of information, there is a message area located just above the Scan button. Errors will be reported here, as well as other bits of information as appropriate.
The Buttons:
0 - 6 represent the SCSI addresses. The buttons which are highlighted indicate at which addresses a device was located. Pressing on a located device will display the table of information as described above.
Scan will search the SCSI bus for devices and set buttons 0-6 as appropriate. This is useful if a device has come online after you have run SCSIInfo.
Mount will place the icon on the Desktop for all volumes which have a driver in memory. Note that this process will bypass many password protection schemes used by some partitioning software, so Use With Care!
Reset will reset the SCSI bus, in case there is an arbitration problem.
The fine-print: SCSIInfo represents many hours of hard work. It is being released as shareware. If you find it useful, please send what you feel is appropriate to the utility it provides.
