Quantum LTO 4, Руководство пользователя

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SCSI Commands: 22BMODE SELECT Page 87
3.10.6.3 Disconnect/Reconnect Mode Page (02h) for SPI
The SPI, (SCSI Parallel Interface), Disconnect/Reconnect mode page contains the
following parameters.
Byte
Bits
7 6 5 4 3 2 1 0
0 Reserved Page Code (02h)
1 Additional Page Length (0Eh)
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7 Reserved
8 Reserved
9 Reserved
10 (MSB)
11
Maximum Burst Size
(LSB)
12 Reserved
13 Reserved
14 Reserved
15 Reserved
The SPI DisconnectReconnect Mode Page parameters are listed below.
Field Bytes Bits Description
Page Code 0 0-5 Always 02h, indicating the Disconnect/Reconnect Page
Additional
Page Length 1 Always 0Eh, indicating that 14 parameter bytes follow the Page
Length byte.
Maximum
Burst Size 10-11 0 = No limit exists on the amount of data transferred per connection
(default). The drive does not have to disconnect until all requested
data is transferred.
1 to 80h = The maximum amount of data that the drive can transfer,
in 512-byte increments, before disconnecting, if the initiator granted
the disconnect capability.
Note that attempting to set Maximum Burst Size to a value greater
than supported by the drive will return check condition with sense
RECOVERED ERROR; ROUNDED PARAMETER.
Reserved All reserved bits must be 0.
On read operations, the drive disconnects when the drive buffer is empty, even if the
Allocation Length has not been satisfied. On write operations, the drive disconnects
when the drive buffer is full, even if the Transfer Length has not been exhausted.