# YAXArrays: do not save chunk that is all fill\_value

**URL:** <https://discourse.julialang.org/t/yaxarrays-do-not-save-chunk-that-is-all-fill-value/109880>\
**Category:** Data\
**Created:** [February 7, 2024, 3:36pm UTC](https://discourse.julialang.org/t/yaxarrays-do-not-save-chunk-that-is-all-fill-value/109880 "2024-02-07T15:36:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bjarthur](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bjarthur/32/9638_2.png) [@bjarthur](https://discourse.julialang.org/u/bjarthur)\
**Post date:** [February 7, 2024, 3:36pm UTC](https://discourse.julialang.org/t/yaxarrays-do-not-save-chunk-that-is-all-fill-value/109880/1 "2024-02-07T15:36:06Z")

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Zarr.jl won’t save chunks whose elements are all `fill_value`. Is that possible with YAXArrays.jl as well when using the zarr backend? i ask here because i don’t see a way to specify a fill value in the YAXArray documentation. [this issue](https://github.com/JuliaDataCubes/YAXArrays.jl/issues/181) seems related though. thanks!