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August 18th, 2011 22:00
Celerra NSX with two DMX1000 backend
Hi,
We have an Celerra NSX with two DMX1000 backends. Both DMXs are fully populated. What are pros and cons of extending a file system that will span two backends? Note that both backends use the same storage pool.
Thanks,
David
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gbarretoxx1
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August 19th, 2011 05:00
Oh...and note you can have up to 4 backends behind one Celerra gateway, so adding another one is the best approach.
gbarretoxx1
2 Intern
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366 Posts
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August 19th, 2011 05:00
Hi,
there are no pros, and the cons are mostly regarding consistency/availability/performance.
If you have a problem on only one backend, part of the file system would be affected, causing corruption. This is the major reason why we avoid to span a file system between different storage systems.
Also, if one DMX is more overloaded than the other, part of your file system will be impacted, wich is very difficult to troubleshoot.
Gustavo Barreto.
ddang1
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August 20th, 2011 00:00
Thanks Gustavo for your quick response.