Can I increase the buffer size for data areas to 13K even if the block size for all my Datacom areas is still 4K?

Document ID : KB000016352
Last Modified Date : 14/02/2018
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Introduction:

The first value in the MUF SYSIN DATAPOOL card (a.k.a.DATALN) defines the size of the buffers used for data areas access (data buffers).  

Question:

We are planning to increase the block size of all our user data areas. Currently all these areas have a block size set to 4K. Is there any problem increasing the DATALN value from 4K to 13K? 

Answer:

No, there is no problem but a lot a storage is wasted, as each 13K block will contain only 4K of data. 

Additional Information:

See DATAPOOL card definition