Re: Understanding Ceph

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On 01/24/2013 12:38 PM, John Wilkins wrote:
> Dima,
> 
> I'm working on a new monitoring and troubleshooting guide now that will
> answer most of the questions related to OSD and placement group states. I
> hope to have it done this week. I have not actually tested the quick starts
> on centos or rhel distributions, but it's on our radar. The intention of
> the quick starts is to get you up and running quickly. It doesn't cover
> deeper issues like how to monitor and troubleshoot. I'm working on adding a
> lot more substantive content there now.

A couple of things in the quick start:

- there should be no space between "rw," and "noatime" in
osd mount options {fs-type} = {mount options} # default mount option is
"rw, noatime"

- for ext4, you need to specify "user_xattr" there or mkcephfs will fail
(with --mkfs at least).

-- 
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu

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