Ad
related to: zfs raidz performance products
Search results
Results From The WOW.Com Content Network
Given the dynamic nature of RAID-Z's stripe width, RAID-Z reconstruction must traverse the filesystem metadata to determine the actual RAID-Z geometry. This would be impossible if the filesystem and the RAID array were separate products, whereas it becomes feasible when there is an integrated view of the logical and physical structure of the data.
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.
ZFS Pool Version Number OS Release Significant changes 29 Solaris Nevada b148 RAID-Z/mirror hybrid allocator 30 Solaris Nevada b149 ZFS encryption 31 Solaris Nevada b150 Improved 'zfs list' performance 32 Solaris Nevada b151 One MB block support 33 Solaris Nevada b163 Improved share support 34 Solaris 11.1 (0.5.11-0.175.1.0.0.24.2)
RAID (/ r eɪ d /; redundant array of inexpensive disks or redundant array of independent disks) [1] [2] is a data storage virtualization technology that combines multiple physical data storage components into one or more logical units for the purposes of data redundancy, performance improvement, or both.
As the FSF (Free Software Foundation) claimed that there was a legal incompatibility between the CDDL and the GPL in 2005, Sun's implementation of the ZFS file system couldn't be used as a basis for the development of a module in the Linux kernel, couldn't be merged into the mainline Linux kernel, and Linux distributions generally did not include it as a precompiled kernel module.
The ZFS filesystem can likewise pool multiple devices of different sizes and implement RAID, though it is less flexible, requiring the creation of virtual devices of fixed size on each device before pooling. [11] In enterprise environments, enclosures are used to expand a server's data storage by using JBOD [12] devices. This is often a ...
between 2008 and 2012, better performance than 86% of all directors The William L. Davis Stock Index From July 2011 to December 2012, if you bought shares in companies when William L. Davis joined the board, and sold them when he left, you would have a 49.3 percent return on your investment, compared to a 6.5 percent return from the S&P 500.
The z/OS File System (zFS) was released as the higher performance successor to HFS in 1995, and IBM recommended migration from HFS to zFS. Following the release of zFS, z/OS releases included a tool, BPXWH2Z, to convert HFS to zFS. [7] IBM dropped the use of HFS in z/OS 2.5, in 2021. [6]