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8 Scalability and performance of Dell EMC OpenManage Essentials version 2.5
5 Discovery and inventory
The test results for discovery and inventory features are listed in Table 2 and Table 3.
Table 2: Discovery and inventory data in OME 2.5 with ICMP enabled
Protocol used for discovery and inventory
WS-Man
WMI
SNMP
50%
Throttle
100%
Throttle
50%
Throttle
100%
Throttle
50%
Throttle
100%
Throttle
Number of devices discovered
8000
8000
8000
8000
8000
8000
Time taken for first time discovery and
inventory (hour)
9
6
6
6
5
3
Time taken for scheduled rediscovery
and inventory (hour)
7
4.5
3
1.5
1.5
1
Average OME memory consumption
during first time discovery and inventory
(MB)
265
35
165
180
135
165
Total CPU usage (percent)
0–19
0–22
0–28
0–30
0–26
0–30
DB size after discovery and inventory
(MB) (Initial DB size – 113 MB)
868
895
134
202
328
330
Uploaded bandwidth for discovery and
inventory (GB)
6
5
4
4
1
2
Downloaded bandwidth for discovery and
inventory (GB)
7
6
16
14
0.657
1
Table 3 Discovery and inventory data in OME 2.5 with ICMP disabled
Protocol used for discovery and inventory
WS-Man
WMI
SNMP
50%
Throttle
100%
Throttle
50%
Throttle
100%
Throttle
50%
Throttle
100%
Throttle
Number of devices discovered
8000
8000
8000
8000
8000
8000
Time taken for first time discovery and
inventory (hour)
10
6
7
6
6
4
Time taken for scheduled rediscovery and
inventory (hour)
7
4.30
4.30
1.45
1.30
1.5
Average OME memory consumption
during first time discovery and inventory
(MB)
269
312
171
171
137
168
Total CPU usage (percent)
0–17
0–26
0–21
0–28
0–26
0–34
DB size after discovery and inventory (in
MB) (Initial DB size – 113 MB)
985
858
134
203
397
327
Uploaded bandwidth for discovery and
inventory (GB)
7
5
5
4
1
1
Downloaded bandwidth for discovery and
inventory (GB)
7
6
19
14
0.660
0.670