converting striped meta to concatenated meta

Hi All,

I am trying to do this only for a study purpose.I am trying to convert a triped meta to concatenated.

Fist I used this file to preview

Convert Meta 2C9 config=concatenated; 

This preview completd successfully

Execute a symconfigure operation for symmetrix '00019010xxxx' (y/ ) ? y

A Configuration Change operation is in progress. Please wait...

    Establishing a configuration change session...............Established.

    Processing symmetrix 000190xxxx

    {

      convert meta 02C9, config=Concatenated, protect_data=FALSE;

    }

    Performing Access checks..................................Allowed.

    Checking Device Reservations..............................Allowed.

    Submitting configuration changes..........................Submitted

    Locking devices...........................................Locked.

    Validating configuration changes..........................Validated.

    Closing configuration change request......................Closed.

    Terminating the configuration change session..............Done.

The configuration change session has completed successfully.

But I found by default it taking protect_data=FALSE;

Then I changed the command file like this

Convert Meta 2C9 config=concatenated,protect_data=True; 

Now preview failing with error

C:\Documents and Settings\aratnan001>symconfigure -sid xxx preview -f 1.txt -v

Execute a symconfigure operation for symmetrix '000190xxxx' (y/ ) ? y

A Configuration Change operation is in progress. Please wait...

    Establishing a configuration change session...............Established.

    Error occurred while Defining change number 1:

    Meta protection is only available for expanding striped metadevices or chang

ing stripe size

    Terminating the configuration change session..............Done.

The configuration change session has failed.

So I just want to understand this situation.Is this means that

1.striped meta can not be convert to concatenated with preserving data on existing meta?

2. by default changing from striped to concatenated will  protect the data ?