[gpfsug-discuss] OpenStack Manila Driver

[Chris Hunter]

Although likely not the access model you are seeking, GPFS is mentioned 
for the swift-on-file project:
* https://github.com/stackforge/swiftonfile

Openstack Swift uses HTTP/REST protocol for file access (ala S3), not 
the best choice for data-intensive applications.

regards,
chris hunter
yale hpc group
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Date: Mon, 15 Jun 2015 08:35:18 +0000
From: Luke Raimbach <Luke.Raimbach at crick.ac.uk>
To: "gpfsug-discuss at gpfsug.org" <gpfsug-discuss at gpfsug.org>
Subject: [gpfsug-discuss] OpenStack Manila Driver

Dear All,

We are looking forward to using the manila driver for auto-provisioning 
of file shares using GPFS. However, I have some concerns...



Manila  presumably gives tenant users access to file system commands 
like mmlinkfileset and mmunlinkfileset. Given that mmunlinkfileset 
quiesces the file system, there is potentially an impact from one tenant 
on another - i.e. someone unlinking and deleting a lot of filesets 
during a tenancy cleanup might cause a cluster pause long enough to 
trigger other failure events or even start evicting nodes. You can see 
why this would be bad in a cloud environment.



Has this scenario been addressed at all?



Cheers,

Luke.


Luke Raimbach?
Senior HPC Data and Storage Systems Engineer
The Francis Crick Institute
Gibbs Building
215 Euston Road
London NW1 2BE