FYI linux sw raid (mdadm) can do online integrity checks to make sure data is accessible. On some systems this is up to the sysadmin, whereas on Debian and Ubuntu it runs automatically on the first ...

上周 Linus Torvalds 在某个论坛上讨论关于内核的相关问题时，提到了 ZFS on Linux，他表明了自己的态度，在 Oracle 对 ZFS 的代码进行重新授权以使其能更友好地被引入到 Linux 内核主线之前，他不会推荐使用 ZFS，同时，即便抛开许可证的原因，Linus 也觉得 ZFS 的综合 ...

ZFS是下一代文件系统，它支持许多高级存储技术，例如卷管理，快照，校验和，压缩和重复数据删除，复制等。 它由Sun Microsystems（现为Oracle Corporation）创建，并以CDDL许可证开源。由于CDDL和GPL之间的许可不兼容，因此ZFS不能作为主线Linux内核的一部分提供。

What were your mdadm parameters? You spent some time tweaking ZFS, but no time tweaking mdadm? mdadm out of the box does not have very convincing performance, as we ...

FreeBSD 基金会宣布了 ZFS 的一项新特性：RAID-Z Expansion。 根据介绍，此功能可以对现有的数据进行重新排列 (reflow) —— 本质上是将数据重写到一个新的磁盘阵列上，即在原来的组加上一个新增加的磁盘。此操作会在逻辑 RAID-Z 组的末尾创建一个新的相邻空闲空间块 ...

Last week frequent contributor _dietrich drew everyone's attention to a piece by Timothy Morgan comparing various low to mid range Unix and Windows servers from a "bang for the buck" perspective. It's ...

It seems like only yesterday that I read Jeff Bonwick's blog entry "ZFS: The Last Word in Filesystems". It was Halloween of 2005 that ZFS was fully integrated into Sun Microsystem's Solaris, and the ...

ZFS is the successor to the Unix File System used in Solaris, and is an advanced file system equipped with snapshot, copy-on-write, and RAID functions. The open source implementation of ZFS could not ...

Forget beards and sandals. The leading open-source file systems are enterprise-class big hitters, with advanced features and massive, often parallel, scalability. Sure, many are under development and ...

Linux kernel head Linus Torvalds has warned engineers against adding a module for the ZFS filesystem that was designed by Sun Microsystems – and now owned by Oracle – due to licensing issues. As ...