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IBM XIV Storage GUI V2.2.49 - Release Notes

November 4th, 2008

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Minimum Requirements:

        CPU:                    Dual Core or equivalent
        Memory:                 1024MB
        Graphic Memory:         128MB
        HD:                     100MB Free
        OS:                     Windows 2000, ME, XP, Windows Server 2003, 
                                Windows Vista
        
        Monitor:
        Resolution:             1024x768 (Recommended: 1024x768 - 1920x1200)
        Color Quality:          24/32 True Color Recommended


Installation:

        Download the GUI installation file, double click it and follow the 
        instructions on the screen

      
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1. Changes in version 2.2.49:

1.1 GUI does not allow auto-refresh while viewing statistics.
    See General Issue 3.1.1 below for more details.


2. Changes in version 2.2.48:

2.1 GUI does not allow viewing statistics of hosts and targets with more than 
    10 ports. See General Issue 3.1.2 below for more details.





3. Known Issues in version 2.2.49:

3.1 General Issues:

3.1.1 Issue: When using IBM XIV System code level 10.0.0.c or lower, the
      interface nodes may run out of file descriptors upon repeated retrieval 
      of statistics for a long time.
      Continuous use (e.g. through scripts), may cause the system to no longer 
      accept GUI connection and commands. XCLI commands will continue to 
      operate normally.
      I/O operations will not be affected and no data will be lost.
    o Corrective Action: Avoid using XCLI to automatically retrieve statistics
      repeatedly.
      If you detect that your GUI stopped responding, while XCLI continues to 
      operate, contact IBM support.
    o Resolution: This problem will be fixed in version 10.0.0.d of the system 
      code, at which time the GUI will allow automatic refresh of statistics.

3.1.2 Issue: When using IBM XIV System code level 10.0.0.b or lower, the system 
      may present memory leakage upon retrieval of statistics from hosts or
      targets that have more than 10 ports. 
      When used excessively (e.g. through scripts that refresh automatically), 
      this leakage may eventually lead to a complete shutdown of all the 
      interface modules.
    o Corrective Action: Avoid using XCLI to retrieve statistics from such host
      and targets.
    o Resolution: This problem will be fixed in version 10.0.0.c of the system
      code, at which time the GUI will also allow viewing statistics from any 
      host or target regardless of its number of ports.



3.2 GUI Issues: 
 
3.2.1 Symptom: GUI bringup and volume operations take a very long time.
    o Reason: The GUI may suffer a significant performance degradation 
      when managing a system containing thousands of volumes.  
      GUI bringup and volume related operations can take several minutes.
    o Corrective Action: None. 

3.2.2 Symptom: GUI is not presenting Target ports as expected
    o Reason: When separate Targets are defined that in fact point to a 
      single storage system, GUI behavior regarding these targets is 
      unpredictable, and can lead to implementation errors in Data
      Migration and Remote Mirroring.
    o Corrective Action: Make sure targets are unique.
        
3.2.3 Symptom: In Windows, when choosing "Large Fonts" appearance, some GUI text 
    and tooltips are not properly displayed.
    o Reason: Font resizing is currently not supported.
    o Corrective Action: None.

3.3  XCLI Issues:
3.3.1 Symptom: Error code MCL_NETWORK_ERROR is seen upon running a CLI 
      command.
    o Reason: This is a temporary condition that should go away within one 
      minute. Note that the command may have in fact been executed 
      correctly.
    o Corrective Action: Wait one minute and check if the previous command 
      completed successfully. If not, repeat the command.