Vdevs and snapshots?

• pyznap

  9 198 0.0 Python

  ZFS snapshot tool written in python

In contrast, zfs snapshots are immutable, and thus anything short of a hardware failure can be addressed with a simple zfs rollback command. This includes deliberate, accidental, and malicious actions. They can also be automated (I personally use pyznap but syncoid is also quite popular), creating what is effectively an incremental backup. I maintain - for each dataset - 24 hourly, 7 daily, 6 monthly, and 1 yearly snapshot. Additionally, I have a wholly separate server that wakes up once a day to ingest these snapshots via zfs send/recv, so even if I made a horrible mistake or suffered a catastrophic hardware failure, I could completely restore from the other server. This last point brings snapshots firmly into the realm of backups, IMO.

• sanoid

  118 2,915 7.1 Perl

  These are policy-driven snapshot management and replication tools which use OpenZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.)

In contrast, zfs snapshots are immutable, and thus anything short of a hardware failure can be addressed with a simple zfs rollback command. This includes deliberate, accidental, and malicious actions. They can also be automated (I personally use pyznap but syncoid is also quite popular), creating what is effectively an incremental backup. I maintain - for each dataset - 24 hourly, 7 daily, 6 monthly, and 1 yearly snapshot. Additionally, I have a wholly separate server that wakes up once a day to ingest these snapshots via zfs send/recv, so even if I made a horrible mistake or suffered a catastrophic hardware failure, I could completely restore from the other server. This last point brings snapshots firmly into the realm of backups, IMO.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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