On 2010-08-14 T 20:41 -0400 Greg Freemyer wrote:
On Sat, Aug 14, 2010 at 7:45 PM, Linda Walsh wrote:
Forward this from the linux-xfs list, in hoping that decision-makers will consider XFS as the default suse OS install choice.
In the past (2.4.x kernel) XFS had significant data loss issues in the presence of unexpected shutdowns.
I am afraid, this sounds a bit vague: please check, if in those cases the storage backends had been configured correctly: every journaling filesystem will suffer from data corruption, if there are any caches (such as disk write cache) inbetween the write and the disk. This is, where barriers come in, and for consistency and data safety I strongly recommend to not switch off barriers, even if this might have a small performance penalty with it!
Since desktops/laptops tend to have these much more than servers, I would not have wanted it to be the default at all during those times.
As said, this claim does not hold for well configured storage and filesystems. There are many people out there (including me:-) who store all their most valuable data on XFS for many years already. And Novell recommends XFS for (non clustered) data storage in the Enterprise Products (SUSE Linux Enterprise Server/Desktop). Considering the capabilities of current filesystems and current development, XFS will keep and possibly extend its position for large and super large storage for the next years. Looking around in the Linux (Kernel) community and also in the community of Linux distributions it seems though that btrfs has capabilities (copy on write, data integrity, snapshots, volume management integration), which make btrfs more suitable as the _default_ filesystem for future Linux distributions¹. If btrfs should be considered as the default filesystem for openSUSE 11.4 -- this certainly depends on its maturity and its maturation over the next 5-6 months. I personally would enjoy to see btrfs to be default sooner than later:-) so long - MgE ¹ This includes future SUSE Linux Enterprise versions; you may read my recent blog about this topic at: http://www.novell.com/communities/node/11736/data-customers-gold -- Matthias G. Eckermann Senior Product Manager - SUSE® Linux Enterprise - Server Product Line SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org