I have a separate /home that I intend to keep as ext4, but I'm curious if all the stability and repair issues have been resolved for btrfs.
I have a separate /home that I intend to keep as ext4, but I'm curious if all the stability and repair issues have been resolved for btrfs.
no - stay well clear for btrfs for / - its known to take forever to boot from... some-sort of incompatibility with ureadahead or something like that.
If you must use it in ubuntu - use it from /home and keep to ext4 for /
mark your thread as [SOLVED], use Thread Tools on forum page.
http://arstechnica.com/science/news/...re-choices.ars
some dudes working on a $40,000 cluster say no.
they used ext4 for /, and (i think?) btrfs for /home - opposite of what you intend.
im sure they are also doing very frequent backups, including of /home, to mitigate risk.
Last edited by earthpigg; April 12th, 2011 at 09:48 PM.
Btrfs is ready for /, but it requires a ext2/3 /boot partition <3
Leading with /home is beyond stupid.
Your data is more valuable than your settings.
Also, I'm rather surprised that the /boot issue is still present. It should be resolved for Natty.
Last edited by Starks; April 12th, 2011 at 09:59 PM.
i suppose that, for the slaves in a cluster, the configuration of / essentially becomes the vital data.
with /home as just a very large extension of the ram, intended to store things only temporarily until the results of the calculations are determined and then returned to the master. is that a correct understanding?
could explain why they are OK with btrfs as /home on the slaves, if its performance is significantly better and assuming bad mojo resulting from btrfs is detected so that the resulting conclusions from that subset of calculations can be discarded.
if that happens 3% of the time but makes the calculations 10% faster, it is a reasonable economic trade on the margin (the goal was a $40,000 cluster using off-the-shelf components that performed comparably to a $400,000 IBM). meanwhile, the custom software that runs the slaves is safe-and-sound from btrfs shenanigans in ext4.
Last edited by earthpigg; April 12th, 2011 at 10:15 PM.
ZFS is amazing filesystem if you overlook the fact that Oracle's license makes it difficult to incorporate into Linux.
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