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The hope was due to Stratis configuration daemon being in userland, it would more quickly reach maturity versus the years of kernel level development of file systems ZFS and Btrfs. [ 2 ] [ 3 ] It is built upon enterprise-tested components LVM and XFS with over a decade of enterprise deployments and the lessons learned from System Storage ...
On most LVM setups, only one copy of the LVM head is saved to each PV, which can make the volumes more susceptible to failed disk sectors. This behavior can be overridden using vgconvert --pvmetadatacopies. If the LVM can not read a proper header using the first copy, it will check the end of the volume for a backup header.
NetBSD from version 6.0 supports its own re-implementation of Linux LVM. Re-implementation is based on a BSD licensed device-mapper driver and uses a port of Linux lvm tools as the userspace part of LVM. There is no need to support RAID5 in LVM because of NetBSD superior RAIDFrame subsystem. NetBSD: ZFS: Yes Yes Yes Yes Yes Yes Yes
Version 7 Unix file system (V7FS) Bell Labs: 1979 Version 7 Unix: ODS-2: DEC: 1979 OpenVMS: FAT12: Seattle Computer Products (Tim Paterson) 1980 QDOS/86-DOS (later IBM PC DOS 1.0) ProDOS: Apple: 1980 Apple SOS (later ProDOS 8) DFS: Acorn Computers Ltd: 1982 Acorn BBC Micro MOS: ADFS: Acorn Computers Ltd: 1983 Acorn Electron (later Arthur/RISC ...
The device mapper is a framework provided by the Linux kernel for mapping physical block devices onto higher-level virtual block devices.It forms the foundation of the logical volume manager (LVM), software RAIDs and dm-crypt disk encryption, and offers additional features such as file system snapshots.
This includes physical devices, such as HDDs, SSDs, CDs/DVDs, RAM disks, etc., and logical devices, such as software or hardware RAID volumes or LVM volumes. File : The file driver allows using files that can reside in any Linux file system or clustered file system as back-stores for export via LIO.
ZFS (previously Zettabyte File System) is a file system with volume management capabilities. It began as part of the Sun Microsystems Solaris operating system in 2001. Large parts of Solaris, including ZFS, were published under an open source license as OpenSolaris for around 5 years from 2005 before being placed under a closed source license when Oracle Corporation acquired Sun in 2009–2010.
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