HP StorageWorks XP Command View Advanced Edition software Device Manager server installation and configuration guide (web version) (T1780-96078, March 2008)

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Linux systems installation

4-1-2-2 Setting memory heap size of the Device Manager server

To set the memory heap size of the Device Manager server:

1. Use a text editor to open the following file:

installation-directory-for-the-Device-Manager-server/hdvm.sh

2. Specify the following value for the -Xmx option of the java command specified in the start

option script:

○ When the number of managed resources is 50,000 or less: 512m (512 MB)

○ When the number of managed resources is more than 50,000: 1024m (1 GB)

If you use the CLI to obtain information about the storage subsystem, more memory might be

required. Therefore, compare the value calculated by using the following formula and the

above value, and then specify the larger value:

Formula:

memory-heap-size = number-of-LDEVs

X 0.03 + total-number-of-paths X 0.03 + 140

3. Restart the Device Manager server as follows:

Execute the following command:

installation-directory-for-the-Device-Manager-server/suitesrvcntl -

stop_hdvm

After the Device Manager server has stopped, execute the following command:

installation-directory-for-the-Device-Manager-server/suitesrvcntl -

start_hdvm

The following shows an example of executing the commands:

# /opt/CVXPAE/suitesrvcntl -stop_hdvm

# /opt/CVXPAE/suitesrvcntl -start_hdvm

4-1-2-3 Setting memory heap size when using CIM/WBEM

If CIM/WBEM functions are being used, you might have to increase the memory heap size of the

Device Manager server, depending on the conditions. Note that the required memory heap size

differs depending on the CIM client you are using.

To change the memory heap size:

1. Use a text editor to open the following file:

installation-directory-for-the-Device-Manager-server/hdvm.sh

2. Open the file hdvm.sh in a text editor, and then change the value of the -Xmx option of the

java command specified in the start option script to new-setting-value (units: MB)

calculated using the following two formulas:

○ calculation-value-for-SMI-S-Provider = 30000 X number-of-LDEVs X number-of-paths-per-

LDEV / 1048576

If the value of number-of-paths-per-LDEV becomes less than 1, assume that this value is

equal to 1 for the calculation.

The value of calculation-value-for-SMI-S-Provider is expressed in megabytes. For this

value, round up the value to the next whole number. If this value becomes less than 256

(MB), assume that this value is equal to 256 for the calculation.

○ new-setting-value = current-setting-value + calculation-value-for-SMI-S-Provider

All of the values in the above formula are expressed in megabytes.

The value of new-setting-value obtained from the above formula is the memory heap size

required for obtaining the class information that belongs to the bottom layer in a CIM class.

When an upper-layer class is specified, some SMI-S clients might obtain information of all the

classes below that class at the same time. In this case, required capacity will be larger than the

value of new-setting-value obtained from this formula.