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October 9, 2020 10:03
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Doing a dry run of zfs destroy, and seeing what will be destroyed and how much space will be reclaimed
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| $ zfs destroy -nv system/usr/jails@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/pg93@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/mysql55@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/pg94@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/empty@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/toiler@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/pg90@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/ansible@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/snapshots@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/ansible-slave@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/mysql56@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/mtatest@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/mysql51@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/pg84@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/crey@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/ezjail_archives@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/basejail@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/minion2@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/pg92@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/hodor@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/dbclone.backups@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/cliff@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/pg91@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would destroy system/usr/jails/newjail@BeforeUpgradingBaseJailFrom9.1To9.3 | |
| would reclaim 392G |
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Seems that would save you a lot of space.
Also, looks like you have some garble in the command:
should just be:
$ zfs destroy -rvn system/usr/jails@BeforeUpgradingBaseJailFrom9.1To9.3