I believe there is a setting that automatically does the scrub after a rebuild. So by we perform the rebuild as quickly as possible to get the data safe. OpenZFS 2.1 can be downloaded from GitHub. It is expected that a scrub would take on the order of n times longer than the rebuild, where n is the width of the draid. The macOS OpenZFS support for mainline is still in the works. Distributed Spare RAID (dRAID) - Create pools using a new distributed variant of RAIDZ which enables dramatically faster resilver times using integrated hot. On the FreeBSD front it works with FreeBSD 12.2-RELEASE or newer. OpenZFS 2.1 supports running on Linux 3.10 through the newly released 5.13 kernels. dRAID pools can be created via the CLI, but requires more development and testing before enabling via the TrueNAS API and WebUI. OpenZFS 2.1.0 is rounded out by InfluxDB support for pool statistics, various new options and sub-command improvements, enhanced man pages, support for memory and CPU hot-plugging, and more. On the performance front OpenZFS 2.1 now scales worker threads with core counts, better handling during interactive I/O, optimized prefetch for parallel workloads, lower pool import times, reduced fragmentation from ZIL blocks, better memory management, and the kernel module will even load faster.Īlso exciting with OpenZFS 2.1 is a new compatibility property for allowing admins to specify the set of features that can be enabled on the pool, which can help with ensuring compatibility between OpenZFS versions and platform coverage. Today, were going to focus on arguably the biggest feature OpenZFS 2.1.0 addsthe dRAID vdev topology. We benchmarked Rebuilding times for different drives size, i.e. #Openzfs draid full#The dRAID implementation allows for full redundancy to be restored in a "fraction of the time" normally required when carrying out a full disk replacement. The Declustered RAID implementation, is a Work in Progress in ZoL, however in my Department I wanted to see how far can this technology can go. OpenZFS 2.1 introduces Distributed Spare RAID (dRAID) to allow creating pools using a distributed variant of RAIDZ for faster resilver times using integrated hot spares. TrueNAS SCALE 22.02 and TrueNAS 13.0 use OpenZFS 2.1. Instead of a separate hot-recovery disk, dRAID uses the concept of. OpenZFS 2.1 included more performance improvements and dRAID (distributed RAID). Shipping now as the successor to last November's big OpenZFS 2.0 release is OpenZFS 2.1 as quite a worthy follow-on release. These groups are scattered across all drives to make optimal use of available disk bandwidth.
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