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
