The backup of dali is stopped because the backup01 disk is not large enough to handle 2 months* of history.
- only one month of history is kept but it can temporary have 2 monthly snapshot presents
root@backup01:~# zfs list -t all NAME USED AVAIL REFER MOUNTPOINT data 188G 4.65G 96K none data/sync 188G 4.65G 96K none data/sync/dali 188G 4.65G 96K none data/sync/dali/postgresql 188G 4.65G 79.6G none data/sync/dali/postgresql@autosnap_2022-04-01_00:00:01_monthly 22.4G - 73.3G - data/sync/dali/postgresql@autosnap_2022-04-10_00:00:00_daily 2.86G - 73.3G - data/sync/dali/postgresql@autosnap_2022-04-11_00:00:00_daily 2.39G - 73.3G - data/sync/dali/postgresql@autosnap_2022-04-12_00:00:00_daily 2.83G - 73.3G - data/sync/dali/postgresql@autosnap_2022-04-13_00:00:02_daily 2.49G - 73.3G - data/sync/dali/postgresql@autosnap_2022-04-14_00:00:00_daily 3.39G - 73.6G - data/sync/dali/postgresql@autosnap_2022-04-15_00:00:01_daily 9.60G - 75.4G - data/sync/dali/postgresql@autosnap_2022-04-16_00:00:00_daily 2.38G - 77.6G - data/sync/dali/postgresql@autosnap_2022-04-17_00:00:01_daily 2.27G - 77.9G - data/sync/dali/postgresql@autosnap_2022-04-18_00:00:02_daily 2.25G - 78.1G - data/sync/dali/postgresql@autosnap_2022-04-19_00:00:00_daily 2.31G - 78.4G - data/sync/dali/postgresql@autosnap_2022-04-20_00:00:00_daily 2.89G - 78.7G - data/sync/dali/postgresql@autosnap_2022-04-21_00:00:01_daily 2.29G - 78.9G - data/sync/dali/postgresql@autosnap_2022-04-22_00:00:02_daily 2.31G - 79.1G - data/sync/dali/postgresql@autosnap_2022-04-23_00:00:01_daily 2.25G - 79.4G - data/sync/dali/postgresql@autosnap_2022-04-24_00:00:01_daily 0B - 79.6G - data/sync/dali/postgresql/wal 1.57G 4.65G 116M none data/sync/dali/postgresql/wal@autosnap_2022-04-01_00:00:01_monthly 41.9M - 58.0M - data/sync/dali/postgresql/wal@autosnap_2022-04-11_00:00:00_daily 66.8M - 82.9M - data/sync/dali/postgresql/wal@autosnap_2022-04-12_00:00:00_daily 58.5M - 74.6M - data/sync/dali/postgresql/wal@autosnap_2022-04-13_00:00:02_daily 103M - 119M - data/sync/dali/postgresql/wal@autosnap_2022-04-14_00:00:00_daily 77.7M - 93.8M - data/sync/dali/postgresql/wal@autosnap_2022-04-15_00:00:01_daily 446M - 478M - data/sync/dali/postgresql/wal@autosnap_2022-04-16_00:00:00_daily 61.7M - 77.7M - data/sync/dali/postgresql/wal@autosnap_2022-04-17_00:00:01_daily 59.5M - 91.6M - data/sync/dali/postgresql/wal@autosnap_2022-04-18_00:00:02_daily 59.8M - 91.9M - data/sync/dali/postgresql/wal@autosnap_2022-04-19_00:00:00_daily 72.9M - 89.0M - data/sync/dali/postgresql/wal@autosnap_2022-04-20_00:00:00_daily 56.9M - 105M - data/sync/dali/postgresql/wal@autosnap_2022-04-21_00:00:01_daily 74.3M - 122M - data/sync/dali/postgresql/wal@autosnap_2022-04-22_00:00:02_daily 66.0M - 114M - data/sync/dali/postgresql/wal@autosnap_2022-04-23_00:00:01_daily 50.6M - 98.8M - data/sync/dali/postgresql/wal@autosnap_2022-04-24_00:00:01_daily 65.3M - 113M - data/sync/dali/postgresql/wal@autosnap_2022-04-25_00:00:00_daily 0B - 116M -
We should also add a monitoring alert when the zfs's available space become low.