[#node-BLOCKFILE_CHUNK_SIZE]
= xref:node.adoc[node]::BLOCKFILE&lowbar;CHUNK&lowbar;SIZE
:relfileprefix: ../
:mrdocs:

The pre&hyphen;allocation chunk size for blk?????&period;dat files (since 0&period;8)

== Synopsis

Declared in `&lt;node&sol;blockstorage&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
inline constexpr unsigned int BLOCKFILE&lowbar;CHUNK&lowbar;SIZE = &lcub;16&lowbar;MiB&rcub;;
----


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