Floppy Disk Drive; Qic Tape Drive Read And Write Formats - HP 3000 Series Handbook

For HP Internal Use Only
Table 1-12. QIC Tape Drive Read and Write Formats
Read
I
QIC 24
QIC 120
I
QIC 150
QIC 525
Write
QIC 120
I
QIC 150
QIC 525
QIC 1000 QIC 1000
The drive reads tapes by sensing the previously written format and by sensing the cartridge
type. The drive writes a tape in a particular QIC format only if the cartridge supports
recording that format. For example, a QIC 525 tape can be written with a QIC 150 format
or a QIC 525 format. However, a tape written in the QIC 1000 format only supports the QIC
1000 format.
You specify the format to be written through specific device files.
Use the following command to determine the available QIC special device files:
>ll /dev/rmt/&<LU>qic
where <L U> is the logical unit number of the tape drive.
Although QIC tapes support multiple QIC formats, you cannot write data on a tape in
more than one format. For example, a QIC 525 tape supports both the QIC 150 and QIC
525 formats. However, you must either write data in the QIC 150 format or the QIC 525
format. The 1.2GB tapes can only be written in the QIC 1000 format. If a cartridge has data
recorded in a particular format, it can be overwritten with a different format.
ALL HP-supplied QIC backup media, such as the Install Tape, Update/SE Tape, User
Enhancement Environment Tape, and Support Tape will be in the QIC 1000 format.
Note
"
The QIC drive is NOT compatible with the 914x drives. You should not load
a QIC tape into a 914x tape drive, or vice versa.
Floppy
Disk Drive
Figure 1-16 shows the front panel and controls of the floppy disk drive. Table 1-13 describes
the front panel. The Drive Activity light is lit when data is being transferred to or from the
disk.
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