Nexenta Core Platform 2 Released [LWN.net]

Nexenta Core Platform 2 Released

Posted May 26, 2009 22:32 UTC (Tue) by dlang (guest, #313)
In reply to: Nexenta Core Platform 2 Released by hppnq
Parent article: Nexenta Core Platform 2 Released

you could do the same thing on linux with LVM snapshots and any filesystem you wanted to use.

to post comments

Nexenta Core Platform 2 Released

Posted May 26, 2009 23:09 UTC (Tue) by hppnq (guest, #14462) [Link] (1 responses)

Indeed. Or check out the Nix package manager and NixOS!

(It seems to have nothing to do with nix of LWN fame. ;-)

Nexenta Core Platform 2 Released

Posted May 27, 2009 17:51 UTC (Wed) by nix (subscriber, #2304) [Link]

It is indeed entirely unrelated to me, although I was tickled by the
name :)

It seems like the sort of thing I'd like to come up with if I was better
at functional languages, though :) A very nifty piece of work indeed.

Nexenta Core Platform 2 Released

Posted May 27, 2009 10:23 UTC (Wed) by paulj (subscriber, #341) [Link] (1 responses)

Can LVM snapshots be promoted to full, R/W devices?

Nexenta Core Platform 2 Released

Posted May 27, 2009 15:05 UTC (Wed) by dtlin (subscriber, #36537) [Link]

Unlike LVM1, LVM2's snapshots are writable by default. It's very, very cool. With sbuild, I use r/w snapshots all the time: it can be set up to take a snapshot of a minimal base system, add minimal dependencies to run a package compile in this environment, and remove the snapshot when all is done.

The changes made to a snapshot go to the bit bucket when the snapshot is removed. There's patches which allow for merging a snapshot back into the origin device. They don't seem to be upstream yet, though.