A colleague plans to use VNX Snapview Snapshots to make local copies of four data
warehouse LUNs. The LUNs to be snapped are:
10 GB
20 GB
30 GB
100 GB
What is the recommended reserve LUN size?
A.
4 GB
B.
8 GB
C.
2 GB
D.
16 GB
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I will go with D.
“A general rule of thumb is that a reserved LUN that is 10 to 20 percent of the size of the source LUN is probably sufficient for OLTP environments, where the read to
write ratio tends to be around 2:1. In environments with a higher rate of change, larg
er reserved LUNs would be advised.”
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Sorry A is correct, I didn’t count average LUN size..
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