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performance loss due to drive mapping?

Thuleman

Supreme [H]ardness
Joined
Apr 13, 2004
Messages
5,833
I am using an application that requires access to data from a single mapped drive letter (don't ask). Meaning that even if the drive is directly attached, I still need to map it to make the whole thing work.

So my current setup is a Promise RM8000 DAS, drive letter E:\, network mapped to Y:\. But I ran out of space and am considering to purchase a 12-bay enclosue next.

Since my app requires a single drive letter, I was thinking to map a directory on my RM8000 to the new volume created by the 12-bay. Meaning my 12-bay will get the drive letter F:\ and I will map that to Y:\new_array. My question is; Will there be a significat performance loss induced by the "double network drive mapping".

Any comments will be appreciated.
 
Maybe a 1-2% decrease since it has to traverse the loopback twice.

Why not go with drive spanning and a single loopback instead?
 
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