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subashgk0071
8 Posts
0
2279
December 11th, 2013 11:00
Does an engine failure in vmax causes Data Unavailability ?
Hello everyone,
Happen to read somewhere in a blog that, an engine failure (Both directors) does not causes DU situation as each DAE has redundant connectivity,which will connect it to a director on another Engine..
Is that true ?
rawstorage
4 Apprentice
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423 Posts
1364
0
Posted December 12th, 2013 06:00
This has been discussed in detail on the following thread https://community.emc.com/thread/96710
At least you have muti-path connected to different director FA ports and you configured device mapping to different FA port on muti-directors. Then single engine failure won't occurs DU. On the backend. if you VMAX installed multiple engines, the Director to DAE connection has redundancy for sure. This's EMC installation standard.
tech511
31 Posts
1364
0
Posted December 11th, 2013 12:00
Yes, unless you single path'ed to a single director in an engine.
As long as you have redundancy you are good to a dir in a different engine.