XBSTREAM(1) Percona XtraBackup XBSTREAM(1) (NAME) xbstream - xbstream Percona (streaming) TAR xbstream Percona XtraBackup . tar cpio ( ) . xbstream / ( xbstream --parallel ) . tar : o -x -c . --parallel Percona XtraBackup 2.4.7 . o -c . o --decrypt=ALGO xbstream . : AES128 AES192 AES256. --encrypt-key --encrypt-key-file . Percona XtraBackup 2.4.7 . o --encrypt-threads (threads) . 1 . Percona XtraBackup 2.4.7 . o --encrypt-key . --encrypt-key-file . Percona XtraBackup 2.4.7 . o --encrypt-key-file . --encrypt-key . Percona XtraBackup 2.4.7 . posix_fadvise() (OS page cache) . xtrabackup (metadata) . quicklz . qpress *.qp xtrabackup qpress qpress file archiver . tar.gz . xbstream --decompress . --decompress-threads . qpress . Qpress . (AUTHORS) Percona LLC / (COPYRIGHT) 2009-2022, Percona LLC / 8.0 June 15, 2026 XBSTREAM(1)