Diagnostic Command Descriptions - IBM totalstorage 326 User Reference

Diagnostic command descriptions

camTest
centralMemoryTest
cmemRetentionTest
cmiTest
crossPortTest
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Model 326 User's Reference
Verifies that the SID translation required by QuickLoop and
implemented using content addressable memories (CAM) are
functioning correctly.
Checks the central memory in each ASIC as follows:
v Built-in self-repair (BISR) circuit in each ASIC chip does not
report failure to repair bad cells (bisr test).
v Data cells can be uniquely written and read correctly (data
write/read test).
v Data in any one ASIC can be read from any other ASIC
(asic-asic test).
v Bad parity can be detected and flagged in the error register and
interrupt posted (parity error test).
v Buffer number error can be detected and flagged in the error
register and interrupt posted (buffer number error test).
v Chip number error can be detected and flagged in the error
register and interrupt posted (chip number error test).
Verifies that:
v Data written into the SRAMs that make up the central memory
are retained
v Data bits do not drop when read after some amount of delay
since the write
Verifies that control messages can be correctly sent from any ASIC
to any ASIC. It also tests that the checksum check is OK.
Verifies the intended functional operation of the hub. The
crossPortTest command sends frames from each port's transmitter
using the GBIC, the imbedded optics, and the external cable back
to another port's receiver. It exercises the entire path of the hub.
The command has two parameters:
v nFrames specifies the number of frames to run. If you omit this
parameter, the test runs until you press Enter.
v 0 or 1 specifies whether a single port looped back to itself is
allowed. 0, the default, does not allow this. 1 does allow this.
A port can be connected to any port in the same hub provided the
connection is of the same technology. For example, SWL ports are
connected to SWL ports and LWL ports are connected to LWL
ports.
Note: All ports on the hub must be connected if GBIC mode is
disabled, or else the hub shows an error condition. When
running the cross-port test, you must set the operating mode
value to 0 or 1. Modes 2 and 3 do not send out the
extended link parameters (ELP) used to discover switches
and hubs. If the ELP is not sent, the hub does not know the
port is connected to another port on the same hub and the
test fails.