Dell S4810 Reference Manual page 582

If specified instance ID is higher than the size of the maximum number of snapshot
instances configured, the following error message is displayed on the console:
%Error: Instance Id is not valid. Configured max snapshot
instances are <max-instances>
If you configured the maximum number of instances as 5 and attempt to view the
buffer statistics tracking details for the instance ID of 6, the aforementioned error is
shown.
Example
Dell#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 5 queue all history summary
Stack-unit 0 unit 0 port 5 (interface te 0/4)
---------------------------------------------------------------
------------------------------------------------
Q# TYPE
Instance 3 Instance 4 Instance 5
30S
---------------------------------------------------------------
------------------------------------------------
UCAST
6
UCAST
1
UCAST
2
MCAST
0
If only two instances are available at the time the above show command is issued,
only two instances will be displayed in the summary output.
---------------------------------------------------------------
------------------------------------------------
Q# TYPE
---------------------------------------------------------------
------------------------------------------------
UCAST
1
UCAST
UCAST
MCAST
Dell#show hardware stack-unit 0 buffer-stats-snapshot unit 0
resource port 5 prio-group all history summary
Stack-unit 0 unit 0 port 5 (interface te 0/4)
---------------------------------------------------------------
------------------------------------------------
PG#
Instance 4
582
Q#
40S
2 5
0
3 2
5
11 0
0
4 0
0
Q#
2 5
3 2
11 0
4 0
Instance 1 Instance 2
Instance 5
Shared Hdrm Shared Hdrm
TOTAL BUFFERED CELLS
Instance 1 Instance 2
10S
50S
4
1
0
0
3
3
0
3
TOTAL BUFFERED CELLS
Instance 1 Instance 2
10S
4
0
3
0
Instance 3
Shared Hdrm
Data Center Bridging (DCB)
20S
20S
Shared Hdrm