On Fri, Dec 31, 2010 at 8:41 AM, Stroller
<[email protected]> wrote:
>
> On 31/12/2010, at 4:16pm, Mark Knecht wrote:
>> I haven't seen much discussion of ext4. Are people using it?
>
> Yeah, it seems pretty good. Anecdotally it seems stable enough, I don't see
> why it should be less so than ext3, now. Deletes are *much* faster than with
> ext3.
>
> Stroller.
Thanks Stroller. I saw a web page where Google announced this December
that they were going to be using it. I figured I might as well finally
get on board.
The next thing I need to understand is the initramfs stuff. My
existing RAID1 (md5 below, 3 disks) uses a 0.90 Super Block which get
auto-assembled by the kernel at boot. The new RAID6 (md3 below, 5
disks) uses Ver 1.2 which, as I understand it, won't get
auto-assembled and requires the initramfs. I'm currently going through
the Gentoo docs to learn about setting that up.
Cheers,
Mark
m...@c2stable ~ $ cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md6 : active raid1 sdc6[2] sdb6[1] sda6[0]
247416933 blocks super 1.1 [3/3] [UUU]
md3 : active raid6 sdb3[1] sdc3[2] sda3[0] sdd3[3] sde3[4]
157305168 blocks super 1.2 level 6, 16k chunk, algorithm 2 [5/5] [UUUUU]
md5 : active raid1 sdc5[2] sdb5[1] sda5[0]
52436032 blocks [3/3] [UUU]
unused devices: <none>
m...@c2stable ~ $
