Seagate Fibre Channel Interface - Manual (Page 301)

Fibre Channel Interface Manual, Rev. D 287
12.33 Receive Diagnostic Results command
The Receive Diagnostic Results command requests analysis data after completion of a Send Diagnostic com-
mand or SCSI-3 Enclosure Services (SES) pages be sent to the initiator. The disc drive supports the optional
Page format, wherein the initiator sends additional pages after a Send Diagnostic command. These additional
pages have a page code that specifies to the disc drive the format of the data to be returned after it receives a
Receive Diagnostic Results command.
If the Send Diagnostic command requested either page 00h or page 40h (the only two optional, non-ESI-,
pages supported by the disc drive), data returned is in the format shown in Table 191 or 194, respectively. If the
Send Diagnostic Self Test bit is set, the data returned is described in Table 197.
If the Send Diagnostic command requested the Supported Diagnostic Pages list (PF bit = 1), the disc drive
returns data in the format shown in Table 191 after receiving the Receive Diagnostic Results command. It lists
all of the diagnostic pages supported by the disc drive.
If the Receive Diagnostic command is sent with the PCV bit set to a 1, the drive sends back the page selected
by the Page Code field (see Table 190). It is not necessary to have first issued a Send Diagnostic command to
receive these pages.
Field definitions (listed alphabetically)
Allocation Length
The number of bytes the initiator has allocated for returned data.
0
No data is transferred.
Any other value indicates the maximum number of bytes that will be transferred. The disc drive terminates the data transfer
when allocation length bytes have been transferred or when all available data has been transferred to the initiator, which-
ever is less.
Control
See Control Bytes in Section 11.2.1.6.
Table 189: Receive Diagnostic Results command (1Ch)
Bit
Byte
7 6 5 4 3 2 1 0
0 0 0 0 1 1 1 0 0
1 0 0 0 0 0 0 0
PCV
Reserved
2
Page Code
3
Allocation Length (in bytes) (MSB)
4
Allocation Length (in bytes) (LSB)
5
Control
1Ch
Table
number
189
189