Справочник Пользователя для Fujitsu MAN3367
C141-E124-01EN
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2.2.2
Caching parameters
The IDD supports the MODE SELECT parameters (caching parameters: page code = 8) shown in
Figure 2.5 for controlling the cache feature. See Section 4.1 concerning details of the MODE
SELECT parameters.
Figure 2.5 for controlling the cache feature. See Section 4.1 concerning details of the MODE
SELECT parameters.
[Caching Parameters (Page Code = 8)]
Bit
Byte
Byte
7
6
5
4
3
2
1
0
0
0
0
0
0
1
0
0
0
1
X‘0A’ or X‘12’ (
Page Length
)
2
IC
ABPF
CAP
DISC
SIZE
WCE
MS
RCD
Default
0
0
0
0
0
1
0
0
Variable
1
0
0
0
0
1
0
1
3
X‘00’ (Reserved)
4-5
Prefetch-suppressed block count
Default
X‘FFFF’
Variable
X‘0000’
6-7
Minimum prefetch
Default
X‘0000’
Variable
X‘0000’
8-9
Maximum prefetch
Default
X‘00xx’
Variable
X‘0000’
10-11
Maximum prefetch
limit block count
Default
X‘FFFF’
Variable
X‘0000’
12
FSW
LBCSS
DRA
VS
VS
Reserved
Default
1
0
0
0
0
0
0
0
Variable
0
0
0
0
0
0
0
0
13
Cache segment count
Default
X‘10’
Variable
X‘3F’
14-15
Cache segment size
Default
X‘0008’
Variable
X‘0000’
16
X‘00’ (Reserved)
17-19
Non cache buffer size
Default
X‘000008’
Variable
X‘000000’
Remark:
The variable column indicates whether the parameter can be changed or not (if "1", the
parameter can be changed).
parameter can be changed).
Figure 2.5
Cache control parameters