Component specific backup doesn't exist in JIRA. The best you can do is to search for all issues of a specific component and take a CSV export.
Project export is an open feature request - https://jira.atlassian.com/browse/JRASERVER-34307
For JIRA Backup , please read this doc -https://confluence.atlassian.com/adminjiraserver071/backing-up-data-802592964.html
@Jack Graves [AC] first caught our eye with his incredible breakdown of what, in his opinion, can make or break a Jira software implementation. (Read his thoughts on this thread)! In this follow...
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