Re: good documentation on btrfs internals and on disk layout

2016-04-05 Thread Yauhen Kharuzhy
2016-04-05 11:56 GMT-07:00 Austin S. Hemmelgarn : > On 2016-04-05 14:36, Yauhen Kharuzhy wrote: >> >> 2016-04-05 11:15 GMT-07:00 Austin S. Hemmelgarn : >>> >>> On 2016-04-05 13:53, Yauhen Kharuzhy wrote: >>> In general, it isn't allowed, but we don't explicitly disallow it either. >>> The worst ca

Re: good documentation on btrfs internals and on disk layout

2016-04-05 Thread Austin S. Hemmelgarn
On 2016-04-05 14:36, Yauhen Kharuzhy wrote: 2016-04-05 11:15 GMT-07:00 Austin S. Hemmelgarn : On 2016-04-05 13:53, Yauhen Kharuzhy wrote: Hello, I try to understand btrfs logic in mounting of multi-device filesystem when device generations are different. All my questions are related to RAID5/

Re: good documentation on btrfs internals and on disk layout

2016-04-05 Thread Yauhen Kharuzhy
2016-04-05 11:15 GMT-07:00 Austin S. Hemmelgarn : > On 2016-04-05 13:53, Yauhen Kharuzhy wrote: >> >> Hello, >> >> I try to understand btrfs logic in mounting of multi-device filesystem >> when device generations are different. All my questions are related to >> RAID5/6 for system, metadata, and da

Re: good documentation on btrfs internals and on disk layout

2016-04-05 Thread Austin S. Hemmelgarn
On 2016-04-05 13:53, Yauhen Kharuzhy wrote: Hello, I try to understand btrfs logic in mounting of multi-device filesystem when device generations are different. All my questions are related to RAID5/6 for system, metadata, and data case. Kernel can mount FS with different device generations (if

Re: good documentation on btrfs internals and on disk layout

2016-04-05 Thread Yauhen Kharuzhy
Hello, I try to understand btrfs logic in mounting of multi-device filesystem when device generations are different. All my questions are related to RAID5/6 for system, metadata, and data case. Kernel can mount FS with different device generations (if drive was physically removed before last unmo

Re: good documentation on btrfs internals and on disk layout

2016-03-30 Thread Hugo Mills
On Wed, Mar 30, 2016 at 01:58:03PM +, sri wrote: > I could find very limited documentation related to on disk layout of btrfs > and how all trees are related to each other. Except wiki which has very > specific top level details I couldn't able to find more details on btrfs. > > FSs such as

Re: good documentation on btrfs internals and on disk layout

2016-03-30 Thread Dave Stevens
Quoting Liu Bo : On Wed, Mar 30, 2016 at 01:58:03PM +, sri wrote: Hi, I could find very limited documentation related to on disk layout of btrfs and how all trees are related to each other. Except wiki which has very specific top level details I couldn't able to find more details on btrfs.

Re: good documentation on btrfs internals and on disk layout

2016-03-30 Thread Liu Bo
On Wed, Mar 30, 2016 at 01:58:03PM +, sri wrote: > Hi, > > I could find very limited documentation related to on disk layout of btrfs > and how all trees are related to each other. Except wiki which has very > specific top level details I couldn't able to find more details on btrfs. > > FSs

good documentation on btrfs internals and on disk layout

2016-03-30 Thread sri
Hi, I could find very limited documentation related to on disk layout of btrfs and how all trees are related to each other. Except wiki which has very specific top level details I couldn't able to find more details on btrfs. FSs such as zfs, ext3/4 and XFS there are documents which explains ond