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Asset ID: 1-71-1011822.1
Update Date:2009-09-14
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Solution Type  Technical Instruction Sure

Solution  1011822.1 :   Sun StorEdge[TM] 9910/9960 Custom Volume Size ( CVS ) limitations with open-L and open-M emulation parity groups  


Related Items
  • Sun Storage 9970 System
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  • Sun Storage 9910 System
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  • Sun Storage 9960 System
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Related Categories
  • GCS>Sun Microsystems>Storage - Disk>Datacenter Disk
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PreviouslyPublishedAs
216201


Steps to Follow

Custom Volume Size, or CVS , is also known by other names such as Virtual Logic Volume Image ( VLVI ) or Virtual Logic Unit Number ( Virtual LUN ).

The CVS utility is used to create smaller custom sized LUNs from the remaining space in a parity group or from existing LDEVs in a Sun StorEdge 9910 or 9960.

There are some limitations to using this utility. One limitation that is not commonly known is that open-L and open-M emulations are NOT supported. One symptom that customers may call in with is a grayed out delete button used to delete an LDEV while in the window to define a customized volume size. You get into this window by clicking Virtual LVI > Volume to Space > select the CU number and hit "Next" > select the parity group and click "Detail".

If a customer says that they cannot delete an LDEV in this window because the delete button is gray, then check the emulation of the parity group. If it is an open-L or open-M emulation then the operation will not work. This will be seen on both the Remote Management Console ( RMC ) and the SVP . The customer should not be administering their array from the SVP.

In general, for all supported emulation types, there are other limitations which would prevent a CVS from being created. The LDEV that will be deleted to make space for the CVS volumes must not be mapped. If a LDEV is mapped then it will have a + sign in the line for that LDEV. Another item is that if 2 or more LDEV will be used for CVS, then they must be in the same parity group.

You Cannot LUSE CVS volumes.

The minimum size that a CVS volume can be is 35 Mb.

These are all contributing factors to issues creating CVS volumes.



Product
High-End Enterprise Systems
Sun StorageTek 9960 System
Sun StorageTek 9910
Sun StorageTek 9970 System

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Change History
Date: 2006-01-24
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Product_uuid
ed52755c-219f-11d6-9108-d7e374199ab2|High-End Enterprise Systems
2a94fb3c-0a18-11d6-90a8-c9c08656284f|Sun StorageTek 9960 System
2a918ae2-0a18-11d6-834a-c679537eebe7|Sun StorageTek 9910
4ea4b951-9fc9-4f1f-b64e-69572a400fb4|Sun StorageTek 9970 System

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