description pgBackRest Overview
pgBackRest is an open source software designed specifically for backing up PostgreSQL databases. It achieves reliable backups through a combination of rsync and Write-Ahead Logging (WAL) archiving. This system provides consistent backups suitable for disaster recovery scenarios and supports integration with solutions like Zerto. pgBackRest is valuable for database administrators managing PostgreSQL systems who need efficient, offsite backup strategies and rapid restoration options.
help pgBackRest FAQ
How does pgBackRest handle backup compression?
pgBackRest supports several compression algorithms, including gz, bz2, lz4, and zstd, allowing users to optimize their storage footprint. This ensures that large PostgreSQL database backups take up significantly less disk space.
Can pgBackRest perform parallel processing for PostgreSQL backups?
Yes, pgBackRest can dramatically speed up the backup and restore processes by utilizing multiple processes to copy database files simultaneously. This parallel processing is a major advantage for large, multi-terabyte PostgreSQL databases.
Does pgBackRest rely on Write-Ahead Logging (WAL) archiving?
The tool relies heavily on PostgreSQL's Write-Ahead Logging (WAL) archiving to ensure reliable point-in-time recovery capabilities. It works seamlessly with the native WAL pipeline to capture every transaction needed for a consistent disaster recovery backup.
Which cloud storage destinations are compatible with pgBackRest?
pgBackRest supports repository storage on local disks, S3-compatible services like Amazon Web Services (AWS), and Azure Blob Storage. This provides database administrators with flexible, off-site disaster recovery options.
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