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Thanks Ben and that save me days.


We will do it soon and try not to affect the existing users. When this's done, we're glad to share our experience about upgrading and reconfiguring manila. Thanks again.


Regards,
tobe
 
------------------ Original ------------------
From:  "Ben Swartzlander"<ben at swartzlander.org>;
Date:  Tue, Aug 25, 2015 10:26 AM
To:  "openstack-dev at lists."<openstack-dev at lists.openstack.org>; 

Subject:  Re: [openstack-dev] [openstack][manila]How to change the networkofmanila without affecting the existing service

 
                   On 08/24/2015 09:06 PM, 陈迪豪 wrote:
            Thanks Ben,
       
       
       We will reconfigure manila to use the correct network. I'm         still wondering will it have an effect on our existing services?         Some users have create shares in our environment(240.0.0.0/8 is         an example and we're using the available one). What if we         upgrade manila to use something like 10.240.0.0/24, can they         continue to use the existing shares in 240.0.0.0/8?
                   
         
          
     It's possible, but it will depend on your network configuration. As     I said below, class E addresses are invalid, so the fact that it     works at all is a bit surprising. I'm sure if it's working now,     there is a way it can continue to work, but there's too many unknown     variables for me to tell you how.
     
     My recommendation would be to stop using the 240.0.0.0/8 addresses     altogether and move everything to valid IP addresses. That move     might end up being disruptive, so the sooner you do it the less     problems it will cause.
     
     -Ben
     
     
     
                        
                        ------------------ Original ------------------
                            From:  "Ben                 Swartzlander"<ben at swartzlander.org>;
               Date:  Mon, Aug 24, 2015 09:42 PM
               To:  "openstack-dev at lists."<openstack-dev at lists.openstack.org>;                 
               Subject:  Re: [openstack-dev]                 [openstack][manila]How to change the network ofmanila                 without affecting the existing service
             
              
             On 08/23/2015 09:01 PM, 陈迪豪 wrote:
                            We has deployed manila service in production. But we                 have found some problems when deploy it in 240.0.0.0/8                 which is blocked by Windows. That means Windows users                 can't use the file system service if we're deploying it                 in this network.
               
               
                          
             240.0.0.0/8 is a class E address, which is invalid, so             blocking by your OS is correct behavior. You should use one             of the RFC1918 IP address ranges for actual traffic.
             
                            I'm wondering how can we change the network of manila                 without affecting the existing service?
               
               
               Can we leave the existing virtual machines which                 continue to serve while restarting manila with the new                 configuration? Does it work for the existing service?
                          
             Manila doesn't offer a way to change the network             accessibility of existing shares. In the future we'll be             able to do share network changes and migrations, but today             you have the following options:
             * If you're using a driver with share servers, create a new             share network with the correct network subnet and create new             shares using that network.
             * If you're using a driver without share servers, simply             reconfigure your storage controller, and restart the Manila             service.
             
             -Ben
             
             
              
                              
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