[LU-14170] Update ZFS version to 2.0.0

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Assignee: Jian Yu
• Reporter: Jian Yu

Description

https://github.com/openzfs/zfs/releases/tag/zfs-2.0.0

Major New Features

• Sequential resilver - The sequential resilver feature can rebuild a failed mirror vdev in a fraction of the time it would take a traditional healing resilver. Full redundancy is restored as quickly as possible and then the pool is automatically scrubbed to verify all of the data checksums. #10349

• Persistent L2ARC - This feature makes the L2ARC cache device persistent across reboots thereby eliminating the usual cache warmup time normally needed after importing your pool. #9582

• ZStandard compression - ZStandard is a modern, high performance, general compression algorithm which provides similar or better compression levels to GZIP, but with much better performance. ZStandard provides a large selection of compression levels to allow a storage administrator to select the preferred performance/compression trade-off. #10278

• Redacted zfs send/receive - Redacted streams allow users to send subsets of their data to a target system. This allows users to save space by not replicating unimportant data within a given dataset or to selectively exclude sensitive information. #7958

Notable Changes

• Added fallocate(mode-0/2) compatibility to preallocate space. #10408

• Reorganized the zfs and zpool man pages by splitting out each subcommand in to its own page. #9559 #9564

• Enabled the systemd zfs-mount-generator by default on Linux. #7329 #8848

• More relevant and useful ZED syslog entries #10967 #10861

• Provided pam module for automatically loading zfs encryption keys for home datasets. #9903

• Support for inheriting and setting user properties in channel programs. #9738 #9950

• Improved bootloader support. #10009 #8627 #10937

• Optionally colorized zpool status output. #9340

Performance

• Faster clone deletion and background freeing with zfs destroy. #8416 #10000 #10034

• Faster zfs send / zfs receive performance for small record sizes. #10067 #10099

• Improved zfs share scalability. #10300 #10688 #10747

• More efficient ARC and memory management. #9181 #9197 #10496 #10575 #10576 #10600 #10618 #10701

• Improved write performance for heavily fragmented pools. #8442

• Optimized AES-GCM encryption performance. #9749 #10029

• SIMD optimizations. #9517 #9539

Issue Links

• is related to: LU-13839 support for RHEL 8.3