[gpfsug-discuss] 4.1.1 protocol support

Michael Garwood7 GARWOODM at uk.ibm.com
Thu Jul 2 16:55:42 BST 2015


Hi Simon,

1. Most of the chef recipes involve installing the various packages 
required for the protocols, and some of the new performance monitoring 
packages required for mmperfquery. There is a series of steps for proper 
manual install at 
http://www-01.ibm.com/support/knowledgecenter/STXKQY_4.1.1/com.ibm.spectrum.scale.v4r11.adv.doc/bl1adv_ces_features.htm 
but this assumes you have all IBM Samba RPMs and prerequisites installed. 
The recipes *should* be split out so that at the very least, RPM install 
is done in its own recipe without configuring or enabling anything...
2. I am not 100% sure what deploying IBM Samba on the cluster will do with 
regards to sernet samba. As far as I am aware there is no code in the 
installer or chef recipes to check for other samba deployments running but 
I may be mistaken. Depending on how sernet samba hooks to GPFS I can't 
think of any reason why it would cause problems aside from the risk of the 
protocols not communicating and causing issues with file locks/data 
overwrites, depending on what workload you have running on samba.
3. I haven't personally seen multicluster deployments done or tested 
before, but no, it is not officially supported. The installer has been 
written with the assumption that you are installing to one cluster, so I 
wouldn't recommend trying with multiple clusters - unforseen consequences 
:)

Regards,

Michael Garwood
IBM Systems Developer

Phone: 44-161-905-4118
E-mail: GARWOODM at uk.ibm.com
40 Blackfriars Street
Manchester, M3 2EG
United Kingdom


IBM United Kingdom Limited
Registered in England and Wales with number 741598
Registered office: PO Box 41, North Harbour, Portsmouth, Hants. PO6 3AU



From:   "Simon Thompson (Research Computing - IT Services)" 
<S.J.Thompson at bham.ac.uk>
To:     gpfsug main discussion list <gpfsug-discuss at gpfsug.org>, 
Date:   02/07/2015 16:43
Subject:        [gpfsug-discuss] 4.1.1 protocol support
Sent by:        gpfsug-discuss-bounces at gpfsug.org



Hi,

Just wondering if anyone has looked at the new protocol support stuff in 
4.1.1 yet?

>From what I can see, it wants to use the installer to add things like IBM 
Samba onto nodes in the cluster. The docs online seem to list manual 
installation as running the chef template, which is hardly manual...

1. Id like to know what is being run on my cluster
2. Its an existing install which was using sernet samba, so I don't want 
to go out and break anything inadvertently
3. My protocol nodes are in a multicluster, and I understand the installer 
doesn't support multicluster.

(the docs state that multicluster isn't supported but something like its 
expected to work).

So... Has anyone had a go at this yet and have a set of steps?

I've started unpicking the chef recipe, but just wondering if anyone had 
already had a go at this?

(and lets not start on the mildy bemusing error when you "enable" the 
service with "mmces service enable" (ces service not enabled) - there's 
other stuff to enable it)...

Simon
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