What is the meaning of "recall storms" in vfs_gpfs.8?

[Samba-JP oota]

In Samba 4.2.0 vfs_gpfs.8 document,
Some phrases were added like this.

<para> When this option is set to no, an attempt to
       open an offline file will be rejected with access
       denied.  This helps preventing recall storms triggered
                                      -------------
       by careless applications like Finder and
       Explorer.</para>

What kind of meaning is "recall storms" in this phrase?

Is Explorer to perform re-reading of a file repeatedly?

oota