所しょ定てい期き間かん保ほ存ぞん

Meanings

1

noun

archiving; retention for a specified period

computing

Computing term for storing data for a predetermined length of time, often in compliance or backup contexts.

interval, space

保protect, guarantee, keep

存exist, suppose, be aware of

保ほ存ぞん
保存 is general 'saving' or 'preservation'; 所定期間保存 specifies that the retention is for a fixed duration.
アーカイブ
アーカイブ is a broader loanword for 'archive'; 所定期間保存 emphasizes the time-limited retention aspect.

Compound of 所定 (prescribed), 期間 (period), and 保存 (preservation/storage).