H3C Technologies H3C Intelligent Management Center - Manual (Page 12)

5
2 Preparing for installation
The following information describes IMC installation requirements for both hardware and software.
Hardware requirements
The following terms are used:
• Node—IMC servers, database servers, and devices managed by IMC are called "nodes."
• Collection unit—Represents a performance instance collected every 5 minutes. When a
performance instance uses another collection interval, it corresponds to a number of collection units
calculated with the formula: 5 minutes/instance collection interval in minutes.
For example, the collection interval is set to 10 minutes for all performance instances. A monitored
device contains 1 CPU, 1 memory bar, and 10 interfaces. To collect performance data for CPU,
memory, response time, reachability rate, and interface send and receive rates, the total collection
units of the device are: (1+1+1+1+(10×2))×5/10=12.
• CPU 1 —The frequency of the CPU must be no less than 2.0 GHz.
• Java heap size—Maximum memory size to be used by Java processes on the IMC Web Server.
The hardware requirements of IMC vary with the components and networking circumstances. For more
information, see the release notes of each component.
Table 2 Server requirements for 32-bit operating systems
Management scale System minimum requirements
Nodes
Collection
units
Online
operator
s
CPU 1
Server
memory
Max.
Java
heap
Storage
required
for
installation
Storage
required
for
operation
0 to 200
0 to 5 K 20
2 cores 4 GB
512
MB
3 GB
30 GB
5 K to 50 K 10 60 GB
200 to 500
0 to 10 K 30
4 cores
• Win
dows
: 6
GB
• Linux
: 8
GB
1 GB 3 GB
50 GB
10 K to 100 K 10 100 GB