Sun Oracle Storage Tek T10000, Reference Manual

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Read Buffer Command
158 T10000: Interface Reference Manual • January 2011 • E20425-01
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Read Buffer Command
The Read Buffer Command retrieves trace dump data. Any buffered write data
and filemarks are written on the tape
before this operation starts.
Table 117. Read Buffer Command
Byte Bit
7 6 5 4 3 2 1 0
0 Operation Code (3Ch)
1 Reserved Mode
2 Buffer ID
3
thru
5
(MSB)
Buffer Offset
(LSB)
6
thru
8
(MSB)
Allocation Length
(LSB)
9 Vendor–specific Reserved Flag Link
Parameter Value
Mode Read buffer mode

01h = Vendor-specific

03h = Descriptor

0Ah = Echo buffer

0Bh = Echo buffer descriptor
Buffer ID
FAh = MIR position data

FCh = MIR performance data

FDh = Permanent error trace data

FEh = Event log data

FFh = Dump buffer
Buffer Offset Offset from start of buffer (this field is ignored)
Allocation Length Maximum length of dump data to transfer