Multiple CEPH roles on single platform

[Snider, Tim]

Another rookie question: What's the thinking on having the same server perform 
multiple CEPH roles (e.g. osd(s), and monitor roles)? I think this would mainly 
be a facto for smaller/cost sensitive environments.

Tim
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Unused doc/images/.jpg files

[Snider, Tim]

Hi  - There are several jpg files in the doc/images directory of the tarball 
that don't seem to be used in the html files or man pages after docs are built. 
If they are used somewhere - where is that  what am I missing?
Some of the .png files are used.

root@84Server:~/ceph-ceph-fd4b839# ls doc/images/
AccessMethods.jpg  RADOS.jpg chef.png  lightstack.png  
radosStack.svg  techstack.png
CEPHConfig.jpg RBD.jpg   chef.svg  lightstack.svg  
stack.png   techstack.svg
CRUSH.jpg  RDBSnapshots.jpg  docreviewprocess.jpg  osdStack.svg
stack.svg

Server:~/ceph-ceph-fd4b839# grep -R osdStack.svg *
Server:~/ceph-ceph-fd4b839# grep -R techstack.png *
doc/images/techstack.svg:   
inkscape:export-filename=/home/johnw/ceph/doc/images/techstack.png
doc/images/radosStack.svg:   
inkscape:export-filename=/home/johnw/ceph/doc/images/techstack.png

Server:~/ceph-ceph-fd4b839# grep -R stack.png *
Binary file build-doc/doctrees/index.doctree matches
Binary file build-doc/doctrees/environment.pickle matches
build-doc/output/html/index.html:img alt=_images/stack.png 
src=_images/stack.png /
build-doc/output/html/_sources/index.txt:.. image:: images/stack.png
doc/index.rst:.. image:: images/stack.png
doc/images/techstack.svg:   
inkscape:export-filename=/home/johnw/ceph/doc/images/techstack.png
doc/images/radosStack.svg:   
inkscape:export-filename=/home/johnw/ceph/doc/images/techstack.png
doc/images/stack.svg:   
inkscape:export-filename=/home/johnw/ceph/doc/images/stack.png
doc/images/lightstack.svg:   
inkscape:export-filename=/home/johnw/ceph/doc/images/lightstack.png

/tmp/ceph-ceph-fd4b839
Server:~/ceph-ceph-fd4b839# find . -name *.jpg -print
./doc/images/RADOS.jpg
./doc/images/CRUSH.jpg
./doc/images/AccessMethods.jpg
./doc/images/docreviewprocess.jpg
./doc/images/CEPHConfig.jpg
./doc/images/RDBSnapshots.jpg
./doc/images/RBD.jpg

Server:~/ceph-ceph-fd4b839# grep -R AccessMethods *
Server:~/ceph-ceph-fd4b839# grep -R CEPHConfig.jpg *
Server:~/ceph-ceph-fd4b839# grep -R RBD.jpg *
Server:~/ceph-ceph-fd4b839# grep -R RADOS.jpg *

Thanks,
Tim
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osd server hardware requirements

[Snider, Tim]

I'm starting to look at Ceph and was wondering if anyone had a link to more 
specific OSD server guidelines WRT processor speed and memory requirements.
My candidate server had an Intel processor  2.13 GHz quad core processor and 
supports up to 24Gb of memory.
I'm wondering about the approximate number of OSDs that this type of processor 
and memory might support. The wording on the hw recommendations webpage: 
http://ceph.com/docs/master/install/hardware-recommendations/  is fairly 
generic.

Thanks,
Tim
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