Hitachi Storage Navigator Modular 2 User Guide

							Advanced Functions10–13
Hitachi Storage Navigator Modular 2 User’s Guide
Changing the IP Address for connecting to Navigator 2
You may need to change the IP address you use to connect to Navigator 2.
To change the IP address for connecting to Navigator 2
1. Stop the Navigator 2 Server service or daemon process (see Starting or 
stopping the Navigator 2 service or daemon process on page 10-15).
2. If other products are using Hitachi Storage Command Suite Common 
Components:
•  Stop those products.
•  Stop the service or daemon process (see Stopping Hitachi Storage 
Command Suite common components on page 10-17).
3. Using one of the following steps, edit the setting file 
snmserver.properties and change the connection address. (The 
slanted text in the following command lines indicates the directory 
where the Hitachi Storage Command Suite Common Components are 
installed.)
For Windows, jp.co.Hitachi.strdiskarray.rmi.hostname in the file 
C:\Program Files\HiCommand\StorageNavigatorModular\server\ 
snmserver.properties specifies the connection address. Change the 
address in this file to the address you want to use.
For Solaris and Linux, jp.co.Hitachi.strdiskarray.rmi.hostname in 
the file /opt/HiCommand/StorageNavigatorModular/server/
snmserver.properties specifies the connection address. Change the 
address in this file to the address you want to use.
Example: jp.co.Hitachi.strdiskarray.rmi.hostname=192.168.0.1
4. Start the service or daemon process for the Hitachi Storage Command 
Suite Common Components (see Starting the Hitachi Storage Command 
Suite common components on page 10-19).
5. Start the Navigator 2 service or daemon process (see Starting or 
stopping the Navigator 2 service or daemon process on page 10-15).
6. If there are other products that use the Hitachi Storage Command Suite 
Common Components, start the service or daemon process for those 
applications (refer to the documentation for those applications). 
						

							10–14Advanced Functions
Hitachi Storage Navigator Modular 2 User’s Guide
Changing the Default Port Number for Navigator 2
By default, Navigator 2 uses the port number 23015. You may need to 
change this port number.
To change the default port number for Navigator 2
1. Stop the Navigator 2 Server service or daemon process (see Starting or 
stopping the Navigator 2 service or daemon process on page 10-15).
2. If other products are using Hitachi Storage Command Suite Common 
Components:
•  Stop those products.
•  Stop the service or daemon process (see Stopping Hitachi Storage 
Command Suite common components on page 10-17).
3. Use one of the following steps to change the port number in the file 
httpsd.conf. (The slanted text in the following command lines indicates 
the directory where the Hitachi Storage Command Suite Common 
Components are installed.)
For Windows, the listen setting in the file C:\Program 
Files\HiCommand\Base\httpsd\conf\httpsd.conf file specifies the 
port number. Change this number to the port number you want to use.
For Linux and Solaris, the listen setting in the file /opt/HiCommand/
Base/httpsd/conf/httpsd.conf specifies the port number. Change 
this number to the port number you want to use.
Example: Listen 23015
4. Start the service or daemon process for the Hitachi Storage Command 
Suite Common Components (see Starting the Hitachi Storage Command 
Suite common components on page 10-19).
5. Start the Navigator 2 service or daemon process (see Starting or 
stopping the Navigator 2 service or daemon process on page 10-15).
6. If there are other products that use the Hitachi Storage Command Suite 
Common Components, start the service or daemon process for those 
applications (refer to the documentation for those applications).
NOTE:Changing the port number used by Hitachi Storage Command 
Suite Common Components affects all installed products that use these 
components. Therefore, before you change the default port number, be 
sure that this change will not adversely affect the products that use Hitachi 
Storage Command Suite Common Components. 
						

							Advanced Functions10–15
Hitachi Storage Navigator Modular 2 User’s Guide
Starting or stopping the Navigator 2 service or daemon 
process
If you install Navigator 2 in Windows, Hitachi Storage Command Suite 
Common Components and the Navigator 2 Server are registered in the 
operating system as services. If you install Navigator 2 in Solaris and Linux, 
start and stop scripts of the process created below /etc/init.d and the 
Hitachi Storage Command Suite Common Components and Navigator 2 
Server execute automatically as daemon processes when these applications 
start.
Because the status of the services or daemon processes are registered as 
start, starting the operating system automatically starts the services or 
daemons. If you perform the following operations, however, you must stop, 
start, or restart the services or daemon process of the Hitachi Storage 
Command Suite Common Components and Navigator 2 Server.
• Update the Navigator 2 installation
• Uninstall Navigator 2
• Install products other than Navigator 2 that use Hitachi Storage 
Command Suite Common Components
• Uninstall products other than Navigator 2 that use Hitachi Storage 
Command Suite Common Components
• Change Navigator 2 setting files
• If you must stop or start the service or daemon process to use Hitachi 
Storage Command Suite Common Components while another product 
is in use
When the service or daemon process stops, you cannot use Navigator 2 and 
other products that use Hitachi Storage Command Suite Common 
Components. Before stopping the service or daemon process, therefore, be 
sure that:
• No users are using Navigator 2.
• There will be no problem if error monitoring is disabled temporarily.
• Storage system firmware is not being or will not be updated.
• You refer to the documentation for applications that use the services or 
daemon processes to determine whether they will be adversely affected 
if stopped.
Stopping the services or daemon processes
To stop the services or daemon process, use the following procedure.
1. Stop the Navigator 2 Server service or daemon process.
2. Stop the service or daemon process for the Hitachi Storage Command 
Suite Common Components. 
3. Refer to the documentation for any products that use Hitachi Storage 
Command Suite Common Components to see whether the services or 
daemon processes for those applications must be stopped as well. 
						

							10–16Advanced Functions
Hitachi Storage Navigator Modular 2 User’s Guide
Stopping the Navigator 2 server service or daemon process
Windows operating systems
There are two ways to stop Navigator 2 Server on a Windows operating 
system:
•A graphical method
• A command prompt method
To use the graphical method
1. In the Windows Start menu, click Settings > Control Panel.
2. In the Control Panel, double-click Administrative Tools.
3. Double-click Services.
4. In the Services (Local) list, right-click the SNM2 Server and click 
Stop from the shortcut menu.
To use the command prompt method
1. In the Windows Start menu, click Programs > Accessories > 
Command Prompt.
2. At the command prompt, enter the following command and press the 
Enter key. 
Any directory can be the current directory when issuing the command.
Solaris and Linux operating systems
To stop the Navigator 2 Server daemon process on Solaris and Linux 
operating systems, issue the following command line. Solaris and Linux 
operating systems, issue the following command line. Root authority is 
required to execute the command. Any directory can be the current 
directory when issuing the command. 
C:\> net stop snm2server
/etc/init.d/snm2srv stop 
						

							Advanced Functions10–17
Hitachi Storage Navigator Modular 2 User’s Guide
Stopping Hitachi Storage Command Suite common components
Windows operating systems
To stop the Hitachi Storage Command Suite Common Components 
service on Windows operating systems
1. In the Windows Start menu, click Programs > Accessories > 
Command Prompt.
2. In the command prompt, move to the directory where the Hitachi 
Storage Command Suite Common Components are installed. 
3. In the directory where the Hitachi Storage Command Suite Common 
Components are installed, issue the following command line and press 
Enter. 
It can take several minutes to stop the service. 
4. Issue the following command line to check that the service stopped. 
The underlined part of the command C:\Program Files\HiCommand
 is 
the path to the folder where Hitachi Storage Command Base Common 
Components are installed. Revise this line according to the path where 
these components reside in your installation. 
•  If the only product that uses Hitachi Storage Command Suite 
Common Components is Navigator 2, this folder is the one where 
Navigator 2 was installed.
•  If other products use Hitachi Storage Command Suite Common 
Components, specify a folder that was specified when the first 
product was installed.
Do not directly stop the service of Hitachi Storage Command Suite 
Common Components using the Services window of the Control Panel or 
the net stop command. Otherwise, Hitachi Storage Command Suite 
Common Components can become unusable.
Solaris and Linux operating systems
To stop the Hitachi Storage Command Suite Common Components 
service on Solaris and Linux operating systems
1. Issue the following command line. Root authority is required to execute 
the command. Any directory can be the current directory when issuing 
the command. 
It can take several minutes to stop the daemon process. 
C:\> cd /D C:\Program Files\HiCommand\Base\bin
C:\Program Files\HiCommand
\Base\bin>hcmdssrv /stop
C:\Program Files\HiCommand
\Base\bin>hcmdssrv /status
/opt/HiCommand/Base/bin/hcmdssrv -stop 
						

							10–18Advanced Functions
Hitachi Storage Navigator Modular 2 User’s Guide
2. Issue the following command line to check that the daemon process 
stopped. 
The underlined part of the command /opt/HiCommand
 is the path to the 
folder where Hitachi Storage Command Base Common Components are 
installed. For Linux, revise this line according to the path where these 
components reside in your installation. 
•  If the only product that uses Hitachi Storage Command Suite 
Common Components is Navigator 2, this directory is /opt/
HiCommand. Solaris users do not have to replace /opt/HiCommand.
•  If other products use Hitachi Storage Command Suite Common 
Components, specify a folder that was specified when the first 
product was installed.
Do not directly stop the service of Hitachi Storage Command Suite 
Common Components using the script below /etc/init.d o r  b y  s e n d i n g  
a signal with the kill command. Otherwise, Hitachi Storage Command 
Suite Common Components can become unusable.
Starting the services or daemon process
To start the services or daemon process
1. Start the service or daemon process for the Hitachi Storage Command 
Suite Common Components.
2. Start the Navigator 2 Server service or daemon process.
3. Refer to the documentation for any products that use Hitachi Storage 
Command Suite Common Components to see whether the services or 
daemon processes for those applications must be started as well.
/opt/HiCommand/Base/bin/hcmdssrv -status 
						

							Advanced Functions10–19
Hitachi Storage Navigator Modular 2 User’s Guide
Starting the Hitachi Storage Command Suite common 
components
Windows operating systems
To start the Hitachi Storage Command Suite Common Components 
service on Windows operating systems
1. In the Windows Start menu, click Programs > Accessories > 
Command Prompt.
2. In the command prompt, move to the directory where the Hitachi 
Storage Command Suite Common Components are installed. 
3. In the directory where the Hitachi Storage Command Suite Common 
Components are installed, issue the following command line and press 
Enter. 
It can take several minutes to start the service. 
4. Issue the following command line to check that the service started. 
The underlined part of the command C:\Program Files\HiCommand
 is 
the path to the folder where Hitachi Storage Command Base Common 
Components are installed. Revise this line according to the path where 
these components reside in your installation. 
•  If the only product that uses Hitachi Storage Command Suite 
Common Components is Navigator 2, this folder is the one where 
Navigator 2 was installed.
•  If other products use Hitachi Storage Command Suite Common 
Components, specify a folder that was specified when the first 
product was installed.
Do not directly start the service of Hitachi Storage Command Suite 
Common Components using the Services window of the Control Panel or 
the net start command. Otherwise, Hitachi Storage Command Suite 
Common Components can become unusable
Solaris and Linux operating systems
To start the Hitachi Storage Command Suite Common Components 
daemon process
1. Issue the following command. Root authority is required to execute the 
command. Any directory can be the current directory when issuing the 
command 
C:\> cd /D C:\Program Files\HiCommand\Base\bin
C:\Program Files\HiCommand
\Base\bin>hcmdssrv /start
C:\Program Files\HiCommand
\Base\bin>hcmdssrv /status
/opt/HiCommand/Base/bin/hcmdssrv -start 
						

							10–20Advanced Functions
Hitachi Storage Navigator Modular 2 User’s Guide
It can take several minutes to start the daemon process. Check that the 
daemon process is started by executing the following command.
It can take several minutes to start the daemon process. 
2. Issue the following command line to check that the daemon process 
started. 
The underlined part of the command /opt/HiCommand
 is the path to the 
folder where Hitachi Storage Command Base Common Components are 
installed. For Linux, revise this line according to the path where these 
components reside in your installation. 
•  If the only product that uses Hitachi Storage Command Suite 
Common Components is Navigator 2, this directory is /opt/
HiCommand. Solaris users do not have to replace /opt/HiCommand.
•  If other products use Hitachi Storage Command Suite Common 
Components, specify a folder that was specified when the first 
product was installed.
Do not directly start the service of Hitachi Storage Command Suite 
Common Components using the script below /etc/init.d o r  b y  s e n d i n g  
a signal with the kill command. Otherwise, Hitachi Storage Command 
Suite Common Components can become unusable.
Starting the Navigator 2 server service or daemon process
Windows operating systems
There are two ways to start Navigator 2 Server on a Windows operating 
system:
•A graphical method
• A command prompt method
To use the graphical method, perform the following procedure.
1. In the Windows Start menu, click Settings > Control Panel.
2. In the Control Panel, double-click Administrative Tools.
3. Double-click Services.
4. In the Services (Local) list, right-click the SNM2 Server and click 
Start from the shortcut menu.
To use the command prompt method, perform the following procedure.
1. In the Windows Start menu, click Programs > Accessories > 
Command Prompt.
2. At the command prompt, enter the following command and press the 
Enter key. 
Any directory can be the current directory when issuing the command.
/opt/HiCommand/Base/bin/hcmdssrv -status
C:\> net start snm2server 
						

							Advanced Functions10–21
Hitachi Storage Navigator Modular 2 User’s Guide
Solaris and Linux operating systems
To start the Navigator 2 Server daemon process on Solaris and Linux 
operating systems, issue the following command line. Root authority is 
required to execute the command. Any directory can be the current 
directory when issuing the command. 
Using the SATA Write and Compare feature
Navigator 2 supports a SATA write and compare feature that ensures the 
integrity of data written to SATA drives. This feature is enabled by default 
and is only valid for SATA drives (SAS and SSD drives do not provide such 
capabilities).
When a host sends data to the storage system with the SATA write and 
compare feature enabled, the storage system:
• Stores the received data in cache memory.
• Sends the host an indication that the data has been received.
• Writes the received data to the SATA drives.
Following successful completion of the write operation, the storage system 
reads the data it just wrote and compares it against the same data in cache 
memory. If this check is successful, the cache data blocks are marked as 
available for new data. If there is a problem during this compare, the cached 
data is rewritten to the SATA drives once again.
Disabling the write and compare feature can provide slight gains in 
performance. However, in the unlikely event your storage system hangs or 
goes down before the write cache gets cleared, data can become lost or 
corrupted. While the data corruption can not be fatal, you could lose critical 
files permanently.
The following message appears:
If you understand the potential risks of disabling the storage system’s Write 
and Compare feature and decide to disable this feature, perform the SATA 
Write and Compare process.
To perform a SATA Write and Compare procedure
1. Start Navigator 2.
/etc/init.d/snm2srv start
Warning!
Disabling SATA Write & Compare increases the risk of data corruption if a drive fails. For this 
reason, Hitachi does not recommend disabling this feature for critical and non-replicated 
information.
Disabling SATA Write & Compare maybe appropriate for most other types of data, especially 
duplicated data. Make sure to evaluate the risks before disabling this feature.
Do you want to proceed with disabling SATA Write & Compare? 
						

							10–22Advanced Functions
Hitachi Storage Navigator Modular 2 User’s Guide
2. When the Arrays window appears, click the storage system whose SATA 
write and compare setting you want to view or change.
3. In the Arrays pane, click Settings > SATA Write & Compare. The 
SATA Write & Compare window appears, with the current SATA write and 
compare setting displayed.
4. To change the SATA write & compare setting:
a. Click the Change SATA Write & Compare button in the top-right 
area of the SATA Write & Compare window. The Change SATA Write 
& Compare window appears.
b. Select the desired setting:
Enable: performs optimized read and verification for write 
operations to SATA volumes. Select this option to balance 
performance and reliability. This is the default setting.
Disable: read and verification are not performed for write 
operations to SATA volumes. Select this option for maximum 
performance, but least reliability.
c. Click OK. 
d. If you disabled SATA write and compare, the precautionary message 
appears. Check Yes, I have read the above warning and agree 
to change SATA Write & Compare and click Confirm.
When the confirmation message appears, click Close. to remove the 
message and complete the procedure. The SATA Write & Compare window 
reappears, with the current SATA write and compare setting displayed.
User Account settings for HiCommand Device Manager and 
Navigator 2
This section provides guidelines about setting up user accounts properly in 
HiCommand Device Manager and Navigator 2 to manage the AMS 2000 
Family storage systems successfully. Following the information in this 
section will let you avoid HiCommand Device Manager from inadvertently 
logging out users from Navigator 2.
Overview
HiCommand Device Manager, Navigator 2, and other products such as 
HiCommand Tuning Manager all have accounts that are stored in a common 
component. Storing accounts in a single component allows these 
applications to be accessed from a single access point/URL. 
Array security or Account Authentication, however, is separate. As a result, 
you must create one unique account in Account Authentication whose 
account name does not match an existing account name in related Hitachi 
software products such as Device Manager, Navigator 2, and Tuning 
Manager. This unique account is only used to add the storage system within 
Device Manager. You will not use it to log into Device Manager, Navigator 2, 
Tuning Manager or other Hitachi software products.