I have a huge Confluence / JIRA installations with tens of gigabytes of attachments.
Backing them up takes a long time. The command is, for example,
call(['/bin/tar', '-zcvf', attachments_backup_filename ,'/var/atlassian/application-data/confluence/attachments'])
(1) Is it safe to run this command while Confluence / JIRA are running to maintain the maximum availability?
(2) What is the worst which can happen?
(3) Should I add some additional parameters to the above "tar" command to make it more thread safe?