On 2020-09-12, at 06:18:25, Rob van der Heij wrote:
> 
> On Sat, 12 Sep 2020 at 01:18, Stanislawski, Shawn (National VM Capability) <
> shaw...@dxc.com> wrote:
> 
>> Would be preferable to avoid truncation of a longer new record when
>> dealing with recfm=VARIABLE.
>> But at this point, it sounds as if there is not an elegant resource-light
>> method for so doing?
>> 
> 
> Would you mind to mark the original as "deleted" and append the longer
> record to the RECFM V file maybe? But I guess you were going index by
> record number rather than a key.
>  
I understand that MDFS indexes blocks (not records) in a tree.
I was disappointed that does not support "elegant resource-light"
insertion, deletion, and replacement of records.  (Yes, that
would require splitting blocks when records are inserted, marking
parts of blocks as unused, and balancing the tree for performance.)

SFS is merely secret.

-- gil

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