Edit Advanced System Settings window

System Administrator Guide for VSP 5000 Series

Version
90-09-2x
Audience
anonymous
Part Number
MK-98RD9009-16
Item Description
No. Number of function bits for the advanced system setting
Advanced System Setting Name of the advanced system setting
  • Hide alert information: The Alert window is not displayed.
  • Refresh forcibly after Apply: The configuration information for the storage system is forcibly updated after the configuration changes are applied to the storage system.
  • Disable data polling: Polling stops.
  • Disable retry of data updating: Retry does not take place even when you fail to acquire data.
  • Enable Storage Navigator 2 All Function: The restrictions on login from Device Manager - Storage Navigator's login window are cleared, including the restrictions on the users who can log in and on the functions available after login. When enabling or disabling the advanced system setting, log in again.
  • Switch the control of differential bitmaps of volumes used for TC/TCMF/UR/URMF/GAD pairs whose capacity is 4TB or less (for open volumes)/262,668Cyl or less (for MF volumes) at creation or resynchronization of pairs: For a TC, TCMF, UR, URMF, or GAD pair that uses an open volume (DP-VOL) with user capacity of 4,194,304 MB or less, or a mainframe volume with user capacity of 262,668 Cyl or less, the differential data management for the target volume is enabled by the hierarchical difference at new pair creation or pair resynchronization (hierarchical difference management).

    In addition, for a TC, TCMF, UR, URMF, or GAD pair that uses an open volume (DP-VOL) with user capacity exceeding 4,194,304 MB, or a mainframe volume with user capacity exceeding 262,668 Cyl, the differential data management for the target volume is enabled by the hierarchical difference at new pair creation regardless of this setting.

  • Switch the control of differential bitmaps of volumes used for TC/TCMF/UR/URMF/GAD pairs whose capacity is 4TB or less (for open volumes)/262,668Cyl or less (for MF volumes) at creation of pairs: For a TC, TCMF, UR, URMF, or GAD pair that uses an open volume (DP-VOL) with user capacity of 4,194,304 MB or less, or a mainframe volume with user capacity of 262,668 Cyl or less, the differential data management for the target volume is enabled by the hierarchical difference at new pair creation (hierarchical difference management).

    In addition, for a TC, TCMF, UR, URMF, or GAD pair that uses an open volume (DP-VOL) with user capacity exceeding 4,194,304 MB, or a mainframe volume with user capacity exceeding 262,668 Cyl, the differential data management for the target volume is enabled by the hierarchical difference at new pair creation regardless of this setting.

  • External Authentication Compatibility option: When enabled, the authentication method is switched from VSP 5000 series to VSP.
    This setting enables the acceleration of external authentication, however only top-level user groups can be searched. Therefore, this setting is not recommended.
    • VSP authentication method: When external authentication (LDAP) is performed, only top-level user groups are searched. Nested groups are not searchable.
    • VSP authentication method: When external authentication (LDAP) is performed, nested groups are enabled as well as top-level user groups.
  • Enable reboot of background service: This option must be enabled only when you are requested to enable it. When this option is enabled, the SVP starts monitoring the background service process. When either of the following values exceeds its threshold, the background service process for managing configuration information is restarted.

    • The amount of memory used in the background service process
    • Time elapsed after the background service process is started
  • Notify an alert when tier relocation is suspended by system: If you enable this option, when tier relocation is suspended by the system, an alert is issued to users. For details about an alert (SIM) to be issued, see the Troubleshooting chapter of the Provisioning Guide for Open Systems or Provisioning Guide for Mainframe Systems.
  • The consistency time of a URMF pair shows the time stamp of the data that has just been copied to a restored journal volume.
    • Enabled: The time included in the time stamp of the data that has just been copied to a restored journal volume shows the consistency time.
    • Disabled: The time included in the time stamp of the data that has just been copied to a secondary volume shows the consistency time.
  • After delta resync, the pair status remains COPY during journal data copy.
    • Enabled: When a delta resync is performed in a 3DC multi-target configuration with TC and UR or TCz and URz, the pair status remains COPY during journal data copy.
    • Disabled: When a delta resync is performed in a 3DC multi-target configuration with TC and UR or TCz and URz, the pair status changes directly to PAIR.
  • One minute after remote path failure detection, the mirror is split.
    • Enabled: When a remote path failure is detected, the mirror is split if the remote path is not restored within one minute after the detection.
    • Disabled: When a remote path failure is detected, the mirror is split if the remote path is not restored within the path monitoring time set by the mirror option.

    This setting is enabled only when After remote path failure detection, the mirror is split is enabled. When After remote path failure detection, the mirror is split is disabled, the mirror is not split even if a remote path failure is detected.

  • After remote path failure detection, the mirror is split.
    • Enabled: After a remote path failure is detected, the mirror is split.
    • Disabled: Even if a remote path failure is detected, the mirror is not split.

    Note: See table below for After remote path failure detection settings.

  • The copy pace for mirror option (Medium) becomes one level faster.
    • Enabled: The pace for copying data during initial copy becomes one level faster when the copy pace for journal option is Medium. This item can be used to make the initial copy operation in Medium speed mode perform faster.
  • The copy pace for mirror option (Medium) becomes two levels faster.
    • Enabled: The pace for copying data during initial copy becomes two levels faster when the copy pace for journal option is Medium. This item can be used to make the initial copy operation in Medium speed mode perform faster.
Status Displays the statuses of the advanced system settings.
Enable Enables the selected advanced system settings. You can select more than one advanced system setting.
Disable Disables the selected advanced system settings. You can select more than one advanced system setting.

The following tables show how advanced system setting 5 works with advanced system setting 6 and how advanced system setting 15 works with advanced system setting 16.

Table. Advanced system settings 5 and 6
No. 5 No. 6 Description
Create operation Resync operation
Disabled Disabled

Apply the shared memory (SM) difference management at new pair creation.

Change the management method from hierarchical differences to SM differences.
Enabled

Apply the hierarchical difference management at new pair creation.

The differential data management method is not changed.
Enabled Disabled Apply the hierarchical difference management at new pair creation. Change the management method from SM differences to hierarchical differences.
Note:
  • If the user capacity of a volume used in a TC, TCMF, UR, URMF, or GAD pair exceeds 4,194,304 MB for an open volume (only DP-VOL) or 262,668 Cyl for a mainframe volume, the differential data management for the target volume is enabled by the hierarchical difference at the new pair creation regardless of the settings of the advanced system settings No. 5 and No. 6.
  • Make the same settings for advanced system settings No. 5 and No. 6 on both the primary and secondary storage systems.
  • If system option mode (SOM) 1198 or 1199 is applied, the difference management method with SOM 1198 or 1199 takes precedence. For details, see System option modes for VSP 5000 series.
Table. Advanced system settings 15 and 16
No. 15 No. 16 Description
Disabled Disabled Even if a remote path failure is detected, the mirror is not split.
Enabled Disabled Even if a remote path failure is detected, the mirror is not split.
Disabled Enabled After remote path failure detection, the mirror is split if the remote path is not restored within the path monitoring time.
Enabled Enabled After remote path failure detection, the mirror is split if the remote path is not restored within one minute after the detection.