Quantum Q250 User Manual

HEAD 0
HEAD 1
•
•
•
HEAD 5
HEAD
0
HEAD 1
•
HEAD 5
•
NEXT CYL
x
x
+ 32
x + 159
x + 1 x + 2 x + 29
(Bad)
x + 33 x + 60
XXXX
x + 160 x + 161 x + 188
x
= logical block address of initial sector
Q280: cylinder number x 190; Q250; cylinder x 126
(Assuming 512 byte logical block size)
XXXXX
= deallocated sector
x + 30
x + 61
x + 189
(spare)
Figure 4-3: In-Line Sparing of Defective Sectors
x
x
+ 32
x + 61
x + 157
x + 1
x + 2
x + 29
(Bad)
x + 33
(Bad)
XXXX
XXX X
x + 186
x
= logical block address of initial sector
Q280: cylinder number
x 190; Q250; cylinder x 126
(Assuming 512 byte logical block size)
XXXXX
= deallocated sector
x + 30
x + 60
x + 187
(spare)
(spare)
x + 31
x + 62
(spare)
x + 31
(Bad)
XXXX
x + 188
(spare)
x + 189
(spare)
Figure 4-4: In-Line Sparing Overflow of Defective Sectors
4-7

Quantum Q250 Specifications

General

Brand	Quantum
Model	Q250
Category	Storage
Language	English