Read/Write Control Page; Table 3-83 Read/Write Control Page - Oracle StorageTek T10000 Reference Manual

Mode Sense Command

Read/Write Control Page

Vendor unique page used to control writing to maximum tape capacity.

TABLE 3-83 Read/Write Control Page

Byte 7
0 PS
1
2 (MSB)
thru
4
5
6 (MSB)
thru
7
8 DFSA
9 (MSB)
thru
31
Parameter
PS: Parameters Savable
SPF: SubPage Format
AMC: Allow Maximum Capacity
DFSA: Disable File Sync Accelerator
LFA: Large File Accelerator
Note – Reserved bytes 2–4 and 6–31 are ignored.
130 T10000: Interface Reference Manual
6 5
SPF (0)
Page Length (1Eh)
Reserved
LFA
Value
0 = Not supported
0 = Mode page format
0 = Constant capacity
1 = Maximum capacity
Constant capacity is the advertised capacity of the media.
Maximum capacity is the advertised capacity plus about 10%
additional.
Note – It is not recommended to use maximum capacity if
a tape to tape copy will ever be attempted.
0 = FSA Enabled (default setting)
1 = Disable FSA
File Sync Accelerator is a method that allows tape motions
to continue when the host write rate drops below the tape
speed
0 = LFA disabled (default setting)
1 = LFA enabled
Bit
4 3 2
Page Code (25h)
Reserved
Reserved
Reserved
Reserved
1 0
(LSB)
AMC
(LSB)
(LSB)
August 2016