6 Functional Specifications

Tape Speed

Table 6-2lists the nominal tape speed at which data can be written and read by the tape drives.

Table 6-2

Nominal tape speed

 

 

 

 

 

Format

 

Speed

 

 

 

 

 

 

EXB-8205 and EXB-8205XL

EXB-8505 and EXB-8505XL

 

 

 

 

8500c

 

11.079 mm/sec (0.436

 

 

 

inch/sec)

8500

 

 

 

 

 

 

 

8200c

 

11.079 mm/sec (0.436 inch/sec)

 

 

 

8200

 

11.633 mm/sec (0.458 inch/sec)

 

 

 

 

File-Search Tape Speed

Table 6-3 lists forward and backward file-search tape speeds for the tape drives. These high-speed search times occur when the initiator issues a LOCATE command (for tapes written in 8200c, 8500, or 8500c formats) or a SPACE command (for all formats).

Table 6-3File-search tape speeds

Format

Forward Speed

Backward Speed

 

 

 

 

 

 

EXB-8205 and

EXB-8505 and

EXB-8205 and

EXB-8505 and

 

EXB-8205XL

EXB-8505XL

EXB-8205XL

EXB-8505XL

 

 

 

 

 

8500c

831 mm/sec max

831 mm/sec max

 

 

(32.7 inch/sec)

 

(32.7 inch/sec)

8500

 

 

 

 

 

 

 

8200c

831 mm/sec max (32.7 inch/sec)

831 mm/sec max (32.7 inch/sec)

 

 

 

 

 

8200

116 mm/sec

(4.58 inch/sec)

87.25 mm/sec

(3.45 inch/sec)

 

 

 

 

 

8500, 8500c, and 8200c Formats

If the tape is written in 8500, 8500c, or 8200c formats, the tape drive can perform forward and backward file-search operations at up to 75 times the nominal tape speed.

May 1994

EXB-8205 and EXB-8505

6-3

 

(Standard and XL)

 

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Exabyte EXB-8505 8mm File-Search Tape Speed, 3File-search tape speeds, EXB-8205 and EXB-8205XL EXB-8505 and EXB-8505XL