I just saw the following ARC case fly by, and this will be a welcome addition to the ZFS file system!: OVERVIEW: Uncooperative or deceptive hardware, combined with power failures or sudden lack of access to devices, can result in zpools without redundancy being non-importable. ZFS’ copy-on-write and Merkle tree properties will sometimes allow us [...]
I just saw the following putback notice come over the wire: Author: Adam Leventhal Repository: /hg/onnv/onnv-gate Latest revision: 17811c723fb4f9fce50616cb740a92c8f6f97651 Total changesets: 1 Log message: 6854612 triple-parity RAID-Z This is pretty sweet, and with the introduction of 2TB+ drives, using multiple parity drives will become essential to ensuring that your data is safe when a drive [...]
I was playing around with ZFS root a week or two back, and wanted to be able to create the ZFS root pool and associated file systems (dump device, swap, /var) through jumpstart. To install to a ZFS root pool, you can add the “pool” directive to your client profile: pool rpool auto 4g 4g [...]
One of the nice features of ZFS is the ability to take file system snapshots, which you can then use to recover perviously deleted data. In recent opensolaris and Nevada builds, there are several auto-snapshot services that can be used to schedule hourly, daily, weekly and monthly snapshots: $ svcs -a | grep auto-snapshot disabled [...]
ZFS allows quotas to be defined for each file system, but currently lacks the ability to define user and group quotas inside a file system (you can create one file system per user to get around this). This issue is being addressed, and user and group quotas will soon be part of opensolaris. Here is [...]
Ben Rockwood is awesome. If you haven’t had a chance to check out his blog, its a must read for any Solaris Admin. He gave a presentation at the Open Storage Summit about ZFS. (Video Here) Its worth the read / view for some indepth ZFS concepts. Joerg assisted in turning some of this [...]
