btrfs features

2015-02-09 Thread Tobias Holst
Hi I am just looking at the features enabled on my btrfs volume. ls /sys/fs/btrfs/[UUID]/features/ shows the following output: big_metadata compress_lzo extended_iref mixed_backref raid56 So big_metadata means I am not using skinny-metadata, compress_lzo means I am using compression.

Re: basic questions regarding some btrfs features

2012-12-04 Thread Aastha Mehta
Thanks a lot for the explanation. Regards, Aastha. On 3 December 2012 13:02, Hugo Mills h...@carfax.org.uk wrote: On Mon, Dec 03, 2012 at 10:52:41AM +0100, Aastha Mehta wrote: On 2 December 2012 23:46, Hugo Mills h...@carfax.org.uk wrote: On Sun, Dec 02, 2012 at 11:17:26PM +0100, Aastha

Re: basic questions regarding some btrfs features

2012-12-03 Thread Hugo Mills
On Sun, Dec 02, 2012 at 07:49:17PM -0700, Chris Murphy wrote: On Dec 2, 2012, at 6:59 PM, Michael m...@draftx.net wrote: Subvolid=0 is always the root subvolume. OK so then what is subvolid=5? subvolid=5 is the actual ID used internally for the top-level subvolume. subvolid=0 won't

Re: basic questions regarding some btrfs features

2012-12-03 Thread Aastha Mehta
Hello, Thank you so much for your prompt response. Few more questions inline. On 2 December 2012 23:46, Hugo Mills h...@carfax.org.uk wrote: On Sun, Dec 02, 2012 at 11:17:26PM +0100, Aastha Mehta wrote: I am looking at btrfs to understand some of its features. One of them is the snapshot

Re: basic questions regarding some btrfs features

2012-12-03 Thread Hugo Mills
On Mon, Dec 03, 2012 at 10:52:41AM +0100, Aastha Mehta wrote: On 2 December 2012 23:46, Hugo Mills h...@carfax.org.uk wrote: On Sun, Dec 02, 2012 at 11:17:26PM +0100, Aastha Mehta wrote: I am looking at btrfs to understand some of its features. One of them is the snapshot feature. Please

Re: basic questions regarding some btrfs features

2012-12-02 Thread Hugo Mills
On Sun, Dec 02, 2012 at 11:17:26PM +0100, Aastha Mehta wrote: I am looking at btrfs to understand some of its features. One of them is the snapshot feature. Please tell me if my following understanding about snapshots in btrfs is correct or not. Btrfs supports both readonly and writeable

Re: basic questions regarding some btrfs features

2012-12-02 Thread Chris Murphy
On Dec 2, 2012, at 3:46 PM, Hugo Mills h...@carfax.org.uk wrote: No, there's precisely one top-level subvolume (subvolid=5). What is subvolid=0? I recently got myself into a subvolume maze and ended up mounting subvolid=0 to get back to the top level and that seemed to work at the time.

Re: basic questions regarding some btrfs features

2012-12-02 Thread Michael
Subvolid 0 is always the root. On Sun, Dec 2, 2012 at 7:59 PM, Michael m...@draftx.net wrote: Subvolid=0 is always the root subvolume. On Sun, Dec 2, 2012 at 6:32 PM, Chris Murphy li...@colorremedies.com wrote: On Dec 2, 2012, at 3:46 PM, Hugo Mills h...@carfax.org.uk wrote: No, there's

Re: basic questions regarding some btrfs features

2012-12-02 Thread Chris Murphy
On Dec 2, 2012, at 6:59 PM, Michael m...@draftx.net wrote: Subvolid=0 is always the root subvolume. OK so then what is subvolid=5? Chris Murphy -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of a message to majord...@vger.kernel.org More majordomo info

Re: basic questions regarding some btrfs features

2012-12-02 Thread Liu Bo
On Sun, Dec 02, 2012 at 07:49:17PM -0700, Chris Murphy wrote: On Dec 2, 2012, at 6:59 PM, Michael m...@draftx.net wrote: Subvolid=0 is always the root subvolume. OK so then what is subvolid=5? We've parsed subvolid=5 and subvolid=0 to the same results, FS_TREE. FYI, the code is

Btrfs features/stabilisation timeline?

2010-04-06 Thread Roy Sigurd Karlsbakk
Hi all With Sun^WOracle's changes to the Solaris license and more, Btrfs looks more welcome every day. However, I can't find anything about its progress for stabilisation or features, so I guess it miht be appropriate to ask here? * How far is Btrfs to become stable as in for production use? *