Monday 30 September 2013

EMC Symmetrix -Tutorials

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About EMC Symmetrix and DMX storage array requirements 

Interoperability requirements for storage arrays

 

For CommandCentral Storage to properly discover and manage EMC Symmetrix and DMX storage arrays, ensure that your storage network’s physical connections, device settings, and CommandCentral Storage settings are properly configured.

Note that when configuring an array for discovery, you can do so in either of the following ways but not both:
  • Using a device-specific command-line interface (CLI) or API
  • Through SMI-S using the CIMOM
For the latest support information, see the CommandCentral Storage Hardware and Software Compatibility List. This document is updated regularly at:
http://entsupport.symantec.com/docs/288784


The following topics describe requirements for configuring EMC Symmetrix and DMX arrays:
  • Physical connection requirements for EMC Symmetrix arrays
  • Device setup requirements for EMC Symmetrix arrays
  • Verifying CLI/API functionality for EMC Symmetrix arrays
  • CommandCentral Storage setup requirements for EMC Symmetrix arrays


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    Physical connection requirements for EMC Symmetrix arrays

    About EMC Symmetrix and DMX storage array requirements 


    For extended discovery, your environment must include the following:

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    Configuration data corruption for EMC Symmetrix arrays

    Device setup requirements for EMC Symmetrix arrays

    Do not run more than one tool (GUI or CLI) at the same time that alters the device masks on an array because this can corrupt array configuration data. CommandCentral Storage alters device masks in Symmetrix arrays through EMC Solutions Enabler and should be the only tool managing the arrays.

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    EMC solutions enabler (SYMCLI) for EMC Symmetrix arrays

    Device setup requirements for EMC Symmetrix arrays 

     

    To support discovery, install EMC Solutions Enabler on a Management Server or CommandCentral Storage managed host. Or, if CommandCentral Storage is already installed, install EMC Solutions Enabler before starting CommandCentral Storage.

    We recommend that you install Solutions Enabler on a host where the managed host code (not the Server) will be installed.
    • Install EMC Solutions Enabler at the installer default location. For instructions on installing EMC Solutions Enabler, see your vendor documentation.
    • If you install EMC Solutions Enabler at a location other than the default location, provide the install location to CommandCentral Storage.

    For information about determining which version of EMC Solutions Enabler to use, see the CommandCentral Storage Hardware and Software Compatibility List.
    More Information
    Inputting SYMCLI nondefault install location


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    World wide names (WWNs) for EMC Symmetrix arrays

    Device setup requirements for EMC Symmetrix arrays

    EMC limits the number of World Wide Names (WWNs) that can be assigned to a single FA port to 32. If more than 32 WWNs are assigned to an array port, EMC Solutions Enabler returns an error message.

    To assign new HBA WWNs to an array port that already has the maximum 32 WWNs assigned to it
    1. Remove some of the WWNs from the port to create available slots in the database.
    2. Assign new HBA WWNs to the port.
      For detailed instructions, see your vendor documentation.

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      LUN visibility for EMC Symmetrix arrays

      Device setup requirements for EMC Symmetrix arrays

      To fully discover and manage an array, the host on which EMC Solutions Enabler is installed must be able to see a VCMDB LUN in the storage array. For example, on Windows with QLogic HBA device driver 8.0.8, the host cannot see LUN 255. Therefore, if the VCMDB LUN is 255, change the VCMDB LUN number in the array to one lower than 255. For more information, check your vendor documentation.
      In addition to the VCMDB LUN, one other LUN in the array should be visible to the host where Solutions Enabler is installed. This LUN acts as a "gatekeeper" and enables communication between the host and the storage array. If the VCMDB LUN is the only LUN in the array that is visible to the host, Solutions Enabler uses it as the gatekeeper, but this is not an optimal configuration. If a second LUN is not visible to the host, determine whether the LUNs in the array are all masked or zoned away from the host where Solutions Enabler is installed. Exclude the VCMDB and other gatekeeper devices from multipathing, and verify that these devices are not in the not ready (NR) state.

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      Verifying CLI/API functionality for EMC Symmetrix arrays

      About EMC Symmetrix and DMX storag

      The following topics describe how to verify EMC Solutions Enabler functionality on UNIX and Windows hosts:
    3. Installing and verifying solutions enabler licenses for EMC Symmetrix arrays
    4. Verifying that EMC solutions enabler licenses are installed
    5. Installing EMC solutions enabler licenses
    6. Verifying CLI/API functionality on UNIX for EMC Symmetrix arrays
    7. Verifying CLI/API functionality on Windows for EMC Symmetrix arrays


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      Installing and verifying solutions enabler licenses for EMC Symmetrix arrays

      Verifying CLI/API functionality for EMC Symmetrix arrays 

     So that CommandCentral Storage can discover and manage Symmetrix arrays, install and enable the following set of EMC licenses on the host where Solutions Enabler is installed:
    Table: EMC Solutions Enabler Licenses
    License Purpose Representative Command to Determine Presence or Absence of License
    BASE Enables the Base component, which includes routine commands such as symdev, symcfg, and symdisk symdev list
    Configuration Mgr Enables the symconfigure command, which is used for management operations such as LUN binding and LUN creation and deletion symconfigure query
    Dev Masking Enables the symmask and symmaskdb commands, which are used for management operations for LUN masking symmaskdb list database
    TimeFinder Enables the symmir command, which is used for discovery and management of TimeFinder snapshots 
    symmir -sid
someSymArayID -f
textFileName attach
    someSymArayID is the ID of a Symmetrix array
    textFileName is a text file containing the device numbers of an STD and BCV device pairin the specified array that have no TimeFinder relationship
    If the attach operation succeeds, you can restore the original STD-BCV relationship by issuing the following command:
    symmir -sid
someSymArayID -f
textFileName detach

 

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Verifying that EMC solutions enabler licenses are installed

Verifying CLI/API functionality for EMC Symmetrix arrays

 

Before performing any license verification, verify that EMC Solutions Enabler is installed on the host where the CommandCentral Storage Management Server or managed host is installed.

To determine whether the EMC solutions enabler is installed (UNIX)
  1. Display the following directory:
    /usr/symcli/bin.
    EMC Solutions Enabler (SYMCLI) creates soft links for all SYMCLI binaries at this location.
  2. If these links are not present, issue the following command at the root directory:
    find . -name symcfg -print

  3. Continue with one of the following;
    • If the Solutions Enabler is installed, determine what solutions enabler licenses are installed.

      The path to where Solutions Enabler is installed is displayed. For example:
      ./opt/emc/WideSky/V5.2.0/bin/symcfg
    • If the Solutions Enabler is not installed, a path is not returned. Review information on the Solutions Enabler.


To determine whether the EMC solutions enabler is installed (Windows)
  1. Go to Add/Remove Programs.
  2. Determine whether "SYMCLI" (EMC Solutions Enabler) is listed under Currently installed programs. Do one of the following:

    • If it is not listed,

    • If it is listed,


To determine what solutions enabler licenses are installed and enabled

  1. To determine what Solutions Enabler licenses are installed and enabled, look at the contents of the symapi_licenses.dat file.
    • On UNIX hosts, the file is located at /usr/emc/API/symapi/config.
    • On Windows hosts, the file is located at C:\Program Files\EMC\Symapi\config.
    The following is an example of the contents of the symapi_licenses.dat file:
    License Key: XXXX-XXXX-XXXX-XXXX WIDESKY Feature: TimeFinder /
Symmetrix
License Key: XXXX-XXXX-XXXX-XXXX WIDESKY Feature: BASE /
Symmetrix
License Key: XXXX-XXXX-XXXX-XXXX WIDESKY Feature: ConfigChange /
Symmetrix
License Key: XXXX-XXXX-XXXX-XXXX WIDESKY Feature: SERVER /
Symmetrix
License Key: XXXX-XXXX-XXXX-XXXX WIDESKY Feature: DevMasking /
Symmetrix
    Licenses can be bundled together, in which case you might not see all installed and enabled licenses in the symapi_licenses.dat file.

  2. Do one of the following:
  3. Change to the directory where the EMC Solutions Enabler is installed and run the commands.

  4. If the license for the command is not installed, an error message displays. Install the license.

More Information
“To determine what solutions enabler licenses are installed and enabled”
EMC solutions enabler (SYMCLI) for EMC Symmetrix arrays
EMC solutions enabler (SYMCLI) for EMC Symmetrix arrays
“To determine what solutions enabler licenses are installed and enabled”
Table: EMC Solutions Enabler Licenses
Installing EMC solutions enabler licenses


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Installing EMC solutions enabler licenses

Verifying CLI/API functionality for EMC Symmetrix arrays

Install the EMC Solutions Enabler licenses on the host where the CommandCentral Storage Management Server or managed host is installed.

To install the EMC solutions enabler licenses

  1. Do one of the following to change to the directory where the EMC Solutions Enabler is installed:
  2. Enter the following command to invoke the WideSky License Management Facility (LMF):
    symlmf
    The following displays:
    E M C         W I D E S K Y

                     WIDESKY LICENSE MANAGEMENT FACILITY

Register WIDESKY License Key (y/[n]) ?
  3. Enter y to input a license key.
    The following displays:
    Enter WIDESKY License Key :
  4. Enter the license key in the format specified by EMC documentation. If you enter a valid key, a message similar to the following displays:
    The WideSky License Key for the BASE feature was
successfully registered.
Register WIDESKY License Key (y/[n]) ?
  5. To enter more license keys, continue with step Step 3.
    To exit, enter n.

  6. After the license keys are installed, continue with one of the following:

  Verifying CLI/API functionality on UNIX for EMC Symmetrix arrays

Verifying CLI/API functionality for EMC Symmetrix arrays

To verify that the required CLI/APIs are installed and functioning, perform the following tasks on the CommandCentral Storage managed host where the EMC Solutions Enabler is installed. Install all specified software on the host and storage array and perform any specified configuration before performing these tasks. Log in as root.
To determine where the EMC solutions enabler is installed (UNIX)
  • EMC Solutions Enabler (SYMCLI) creates soft links for all SYMCLI binaries at /usr/symcli/bin. If these links are not present, issue the following command at the root directory:
    find . -name symcfg -print
    The path to where Solutions Enabler is installed is displayed. For example:
    ./opt/emc/WideSky/V5.2.0/bin/symcfg
    If Solutions Enabler is not installed, a path is not returned.
    If no path displays, See EMC solutions enabler (SYMCLI) for EMC Symmetrix arrays.
To determine the EMC solutions enabler version (UNIX)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. Enter the following at the command line:
    ./symcli
    The SYMCLI version number and other information display. For example:
    Symmetrix Command Line Interface (SYMCLI) Version
V5.2.0.0 (Edit Level: 425)
built with SYMAPI Version V5.2.0.0 (Edit Level: 425)
  3. Refer to the CommandCentral Storage Hardware and Software Compatibility List to verify that the installed version is supported.
To determine the array firmware version (UNIX)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. Enter the following at the command line:
    ./symcfg list
    A list of all connected Symmetrix arrays displays. For example:
                    S Y M M E T R I X

                          Mcode   Cache    Num Phys Num Symm
SymmID   Attachment Model Version Size(MB) Devices  Devices
000182504558 Local  3400  5266    2048     1        755
  3. Determine the microcode version, which is 5266 in this example. Refer to the CommandCentral Storage Hardware and Software Compatibility List to verify that the installed version is supported.
To determine whether Symmetrix arrays and physical devices are visible to the host (UNIX)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. Enter the following at the command line:
    ./symcfg discover
    A message similar to the following displays:
    This operation may take up to a few minutes. Please be
patient...
  3. If the previous command did not return an error message, enter the following at the command line:
    ./symcfg list
    A list of all connected Symmetrix arrays displays. For example:
                     S Y M M E T R I X

                            Mcode   Cache     Num Phys Num Symm
SymmID   Attachment  Model  Version Size(MB)  Devices  Devices
000182504558  Local  3400   5266    2048      1        755
  4. Verify that all connected Symmetrix arrays are listed.
  5. If a connected array is not listed, this could mean that no device in that array is visible to the host.

  6. If the previous command returned a list of arrays, enter the following at the command line for each array listed:
    ./sympd -sid symmetrixId list
    where symmetrixId is one of the IDs returned by the symcfg list command.
    A list of all devices in the specified array that are visible to the host displays.
    For example:
    ./sympd -sid 000182504558 list

Symmetrix ID: 000182504558

          Device Name        Directors                   Device
---------------------------- ------------ ---------------------
                                                            Cap
Physical         Sym  SA :P DA :IT Config Attribute    Sts  MB)
---------------------------- ------------ ---------------------
/dev/rdsk/c1t1d0s2 0000 01B:0 02A:D1 2-Way Mir N/Grp'd VCM WD  8
  7. For each connected Symmetrix array, verify that at least one physical device is listed.
  8. If you see an error message similar to "Gatekeeper not found," no LUNs in the specified array are visible to the host.
    If this occurs, review information about LUN visibility.
    See LUN visibility for EMC Symmetrix arrays.
    To enable extended discovery and management of a Symmetrix array, the VCMDB in that array must be visible to the CommandCentral Storage host where the EMC Solutions Enabler is installed.
To determine whether a VCMDB device for each array is visible to the host and in the ready state (UNIX)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. To determine which VCMDB devices are visible to the host, enter the following at the command line:
    ./sympd -sid symID -vcm list
    where symID is the last two digits of the array identifier.
    Information is returned for each VCMDB device that is visible to the host. In the following example, the command is issued twice. No devices are visible for array 27, but a device named c3t0d0s2 is visible for array 84. (The command output is broken into two lines to make it easier to read.)
    # ./sympd -sid 27 -vcm list
Symmetrix ID: 000187400527
No devices were found

# ./sympd -sid 84 -vcm list
Symmetrix ID: 000187900584

         Device Name           Directors
--------------------------   ------------
Physical              Sym    SA :P DA :IT
--------------------------   ------------
/dev/rdsk/c3t0d0s2    0000   01C:0 16B:C8

                  Device
----------------------------------------
                                     Cap
Config         Attribute        Sts  (MB)
-----------------------------------------
2-Way Mir N/Grp'd VCM WD 45
  3. Note the status (Sts) of the VCMDB device (VCM).
    • A status of WD (Write Disabled) means the device is ready.
    • A status of NR means the device is not ready. In this case, make the device ready by issuing the following command:
      ./symdev -sid symmetrixId ready symDeviceID
      where symmetrixId is the array ID and symDeviceID is the Symmetrix device ID.
      To make ready the device in the proceeding example (whose symDeviceID is 0000), you would issue the following command:
      ./symdev -sid 000187900584 ready 0000
  4. Repeat step Step 2 and step Step 3 for each Symmetrix array that is attached to the host.
More Information
“To determine where the EMC solutions enabler is installed (UNIX)”
“To determine where the EMC solutions enabler is installed (UNIX)”
“To determine where the EMC solutions enabler is installed (UNIX)”
LUN visibility for EMC Symmetrix arrays
“To determine where the EMC solutions enabler is installed (UNIX)”


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Verifying CLI/API functionality on Windows for EMC Symmetrix arrays

Verifying CLI/API functionality for EMC Symmetrix arrays

To verify that the required CLI/APIs are installed and functioning, perform the following tasks on the CommandCentral Storage host where the EMC Solutions Enabler is installed. Install all specified software on the host and storage array and perform any specified configuration before performing these tasks. Log on as a user with administrator-level privileges.
To determine whether the EMC solutions enabler is installed (Windows)
  • In Add/Remove Programs, determine whether "SYMCLI" (EMC Solutions Enabler) is listed under Currently installed programs.
To determine where the EMC solutions enabler is installed (Windows)
  1. In the Search window, search for symcfg.exe under Program Files.
    The search returns the path to where the Solutions Enabler executables are installed.
  2. If the EMC Solutions Enabler is not installed at the default location, use the vaildiag CLI tool to input the install location to CommandCentral Storage.
To determine the EMC solutions enabler version (Windows)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. Enter the following at the command line:
    symcli
    The SYMCLI version number and other information display.
    For example:
    Symmetrix Command Line Interface (SYMCLI) Version
V5.2.0.0 (Edit Level: 425)
built with SYMAPI Version V5.2.0.0 (Edit Level: 425)
  3. See the CommandCentral Storage Hardware and Software Compatibility List to verify that the installed version is supported.
To determine the array firmware version (Windows)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. Enter the following at the command line:
    symcfg list
    A list of all connected Symmetrix arrays displays. For example:
                      S Y M M E T R I X
                            Mcode   Cache     Num Phys Num Symm
SymmID   Attachment  Model  Version Size(MB)  Devices  Devices
000182504558  Local  3400   5266    2048      1        755
  3. Determine the microcode version, which is 5266 in this example.
    See the CommandCentral Storage Hardware and Software Compatibility List to verify that the installed version is supported.
To determine whether Symmetrix arrays and physical devices are visible to the host (Windows)
  1. At the command line, change to the directory where the EMC Solutions Enabler is installed.

  2. Enter the following at the command line:
    symcfg discover
    A message similar to the following displays:
    This operation may take up to a few minutes. Please be
patient...
  3. If the previous command did not return an error message, enter the following at the command line:
    symcfg list
    A list of all connected Symmetrix arrays displays. For example:
                      S Y M M E T R I X

                            Mcode   Cache     Num Phys Num Symm
SymmID   Attachment  Model  Version Size(MB)  Devices  Devices
000182504558  Local  3400   5266    2048      1        755
  4. Verify that all connected Symmetrix arrays are listed.
  5. If a connected array is not listed, this could mean that no device in that array is visible to the host.

  6. If the previous command returned a list of arrays, enter the following at the command line, for each array listed:
    sympd -sid symmetrixId list
    where symmetrixId is the array ID returned by the symcfg list command.
    A list of all devices in the specified array that are visible to the host displays.
    For example:
    C:\Program Files\EMC\WideSky\bin>sympd -sid 000182504558 list

Symmetrix ID: 000182504558

       Device Name            Directors                  Device
--------------------------- ------------- ---------------------
                                                            Cap
Physical Sym  SA :P DA :IT  Config      Attribute      Sts  MB)
--------------------------- ------------- ---------------------

\\.\PHYSICALDRIVE1 0000 01B:0 02A:D1 2-Way Mir N/Grp'd VCM WD 8
\\.\PHYSICALDRIVE2 0001 01B:0 02A:C0 2-Way Mir N/Grp'd    NR 534
\\.\PHYSICALDRIVE3 0002 01B:0 03A:C0 2-Way Mir N/Grp'd    RW 534
\\.\PHYSICALDRIVE4 0003 01B:0 14A:C0 2-Way Mir N/Grp'd    RW 534
\\.\PHYSICALDRIVE5 0004 01B:0 15A:C0 2-Way Mir N/Grp'd    RW 534
\\.\PHYSICALDRIVE6 0005 01B:0 02B:C0 2-Way Mir N/Grp'd    RW 534
\\.\PHYSICALDRIVE7 0006 01B:0 03B:C0 2-Way Mir N/Grp'd    RW 534
\\.\PHYSICALDRIVE8 0008 01B:0 15B:C0 2-Way Mir N/Grp'd    RW 534
  7. For each connected Symmetrix array, verify that at least one physical device is listed.
  8. If you see an error message similar to, "Gatekeeper not found," no LUNs in the specified array are visible to the host.
    If this occurs, review information about LUN visibility.
    See LUN visibility for EMC Symmetrix arrays.
    To enable extended discovery and management of a Symmetrix array, the VCMDB in that array must be visible to the CommandCentral Storage host where the EMC Solutions Enabler is installed.
To determine whether a VCMDB device for each array is visible to the host and in the ready state (Windows)
  1. At the command line, change to the directory where Solutions Enabler is installed.

  2. To determine which VCMDBs are visible to the host. Enter the following at the command line:
    sympd -sid symID -vcm list
    where symID is the last two digits of the array identifier.
    Information is returned for each VCMDB device that is visible to the host. In the following example, the command is issued twice. No devices are visible for array 27, but a device named c3t0d0s2 is visible for array 84. (The command output is broken into two lines to make it easier to read.)
    C:>sympd -sid 27 -vcm list
Symmetrix ID: 000187400527
No devices were found

C:>sympd -sid 84 -vcm list
Symmetrix ID: 000187900584

         Device Name           Directors
--------------------------   ------------
Physical              Sym    SA :P DA :IT
--------------------------   ------------
/dev/rdsk/c3t0d0s2    0000   01C:0 16B:C8

                  Device
----------------------------------------
                                     Cap
Config         Attribute        Sts  (MB)
-----------------------------------------
2-Way Mir      N/Grp'd  VCM     WD    45
  3. Note the status (Sts) of the VCMDB device (VCM).
    • A status of WD (Write Disabled) means the device is ready.
    • A status of NR means the device is not ready. In this case, make the device ready by issuing the following command:
      symdev -sid symmetrixId ready symDeviceID
      where symmetrixId is the array ID and symDeviceID is the Symmetrix device ID.
      To make ready the device in the proceeding example (whose symDeviceID is 0000), you would issue the following command:
      symdev -sid 000187900584 ready 0000
  4. Repeat step Step 2 and step Step 3 for each Symmetrix array that is attached to the host.
More Information
“To determine where the EMC solutions enabler is installed (Windows)”
“To determine where the EMC solutions enabler is installed (Windows)”
“To determine where the EMC solutions enabler is installed (Windows)”
LUN visibility for EMC Symmetrix arrays
“To determine where the EMC solutions enabler is installed (Windows)”


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CommandCentral Storage setup requirements for EMC Symmetrix arrays

About EMC Symmetrix and DMX storage array requirements 


To enable array discovery and management, the CommandCentral Storage Operations Module (OM) must be enabled and the array explorers must be installed on the CommandCentral Storage host where array discovery is done.
Setup includes the following tasks:

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Disabling discovery of Symmetrix arrays

CommandCentral Storage setup requirements for EMC Symmetrix arrays


EMC Symmetrix storage arrays are discovered and managed in-band. All arrays with a Fibre Channel or SCSI connection to a CommandCentral Storage host where SYMCLI is installed are discovered. You can disable individual arrays.
To disable discovery of individual Symmetrix arrays
  1. Click Settings > Managed Hosts.
  2. In the Managed Hosts table, click the host where you installed SYMCLI.
  3. In the Explorers table, click the EMCSymmetrixExplorer.
  4. On the Overview tab, check the box next to the name of the Symmetrix array you want to disable.
  5. From the drop-down list, click Disable Discovery and click Go.
  6. In the confirmation dialog box, click OK.
  7. Repeat these steps for each Symmetrix array you want to disable.

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    Enabling discovery of Symmetrix arrays

    CommandCentral Storage setup requirements for EMC Symmetrix arrays 


    You can re-enable discovery of a EMC Symmetrix storage array for which discovery is disabled.
    To specify which EMC Symmetrix arrays are discovered
    1. Click Settings > Managed Hosts.
    2. In the Managed Hosts table, click the host where you installed SYMCLI.
    3. In the Explorers table, click the EMCSymmetrixExplorer.
    4. On the Overview tab, check the box next to the name of the Symmetrix array you want to enable.
    5. From the drop-down list, click Enable Discovery and click Go.
    6. In the confirmation dialog box, click OK.
    7. Repeat these steps for each Symmetrix array that you want to discover.

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      SRDF discovery of Symmetrix arrays

      CommandCentral Storage setup requirements for EMC Symmetrix arrays 

      SRDF is a remote replication mechanism in the EMC Symmetrix arrays. The SRDF associations are between devices of two different Symmetrix arrays, called SRDF pairs. SRDF pairs consists of the primary that is in one array and the secondary in another array. You must configure CommandCentral Storage to discover both of these arrays from the same EMCSymmetrixExplorer process.
      By default, the EMCSymmetrixExplorer auto discovers all Symmetrix arrays available for discovery on the managed host. If, say for the purpose of load balancing of discovery, one of the Symmetrix arrays is configured to be discovered in another instance of the EMCSymmetrixExplorer, be it on the same host or a different host, then the SRDF discovery will not happen. However, if one of the arrays is explicitly disabled, then that explorer can no longer discover the SRDF pairs and connections between the disabled array and other arrays connected to it.

      /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

      Configuring the EMC Symmetrix explorer

      CommandCentral Storage setup requirements for EMC Symmetrix arrays 


      Configure the explorer only if you want to modify the default settings.
      To configure the EMC Symmetrix explorer
      1. Click Settings > Managed Hosts.
      2. In the Managed Hosts table, click the host where you installed SYMCLI.
      3. In the Explorers table, check EMCSymmetrixExplorer.
      4. From the drop-down list, click Configure Explorer and click Go.
      5. In the Configure Explorer - Explorer Settings dialog box, enter the parameters you are setting or changing:
        Polling Interval in Minutes
        		 Time the explorer waits before repeating discovery. Default is 30 minutes. Do not make shorter unless you have good reason to do so.
        New Devices Enabled by Default
        		 Check the checkbox to enable this explorer to discover new arrays automatically.
        SYMCLI Path
        		 Click Advanced Settings to display. Path to the SYMCLI location. Default value is the path to the default install location. Do not change unless you installed the SYMCLI at a different location.
        Debug Level
        		 Click Advanced Settings to display. Determines the verbosity of messages logged by this explorer. 0 turns off logging. Verbosity range is 1-6 where 1 is the least and 6 is the most verbose.
      6. Click Next.

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        Editing EMC Symmetrix device information

        CommandCentral Storage setup requirements for EMC Symmetrix arrays 


        Edit the information after configuring the EMC Symmetrix device.
        To edit EMC Symmetrix device information
        1. Click Settings > Managed Hosts.
        2. In the Managed Hosts table, click the host where you installed SYMCLI.
        3. In the Explorers table, click the EMCSymmetrixExplorer.
        4. On the Overview tab, check the Symmetrix array whose configuration you want to modify.
        5. From the drop-down list, click Edit Device Configuration and click Go.
        6. In the Configure Device - Device Credentials dialog box, enter the parameters you are setting or changing:
          Enable Discovery
          		 Check the checkbox to enable discovery of the array.
          Enable Monitoring
          		 Check the checkbox to enable Simple Instrumentation Collection Layer (SICL) monitoring of the array.
          Array Monitoring Interval (in minutes)
          		 How often SICL monitors the array. Default is 30 minutes.
          Verify Device Configuration
          		 Check the checkbox to verify that the array can be contacted using the information entered in the dialog.
        7. Click Next.

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