Re: [gentoo-user] OT: btrfs raid 5/6

2017-12-01 Thread Wols Lists
On 01/12/17 17:14, Rich Freeman wrote: > You could run btrfs over md-raid, but other than the snapshots I think > this loses a lot of the benefit of btrfs in the first place. You are > vulnerable to the write hole, The write hole is now "fixed". In quotes because, although journalling has now

Re: [gentoo-user] OT: btrfs raid 5/6

2017-12-01 Thread Rich Freeman
On Fri, Dec 1, 2017 at 11:58 AM, Wols Lists wrote: > On 27/11/17 22:30, Bill Kenworthy wrote: >> Hi all, >> I need to expand two bcache fronted 4xdisk btrfs raid 10's - this >> requires purchasing 4 drives (and one system does not have room for two >> more drives)

Re: [gentoo-user] OT: btrfs raid 5/6

2017-12-01 Thread Wols Lists
On 27/11/17 22:30, Bill Kenworthy wrote: > Hi all, > I need to expand two bcache fronted 4xdisk btrfs raid 10's - this > requires purchasing 4 drives (and one system does not have room for two > more drives) so I am trying to see if using raid 5 is an option > > I have been trying to find

Re: [gentoo-user] OT: btrfs raid 5/6

2017-12-01 Thread J. Roeleveld
On Monday, November 27, 2017 11:30:13 PM CET Bill Kenworthy wrote: > Hi all, > I need to expand two bcache fronted 4xdisk btrfs raid 10's - this > requires purchasing 4 drives (and one system does not have room for two > more drives) so I am trying to see if using raid 5 is an option > > I

Re: [gentoo-user] Re: is multi-core really worth it?

2017-12-01 Thread J. Roeleveld
On 28 November 2017 11:07:58 GMT+01:00, Raffaele Belardi wrote: >Raffaele Belardi wrote: >> Hi, >> >> rebuilding system and world with gcc-7.2.0 on a 6-core AMD CPU I have >the impression that >> most of the ebuilds limit parallel builds to 1, 2 or 3 threads. I'm >aware