Dell-EMC
E20-880 · Question #117
You are migrating a database on NFS to a new VNX. The customer notes that you have designated only SAS drives for the database transaction logs and not any Flash drives. The customer believes that…
The correct answer is B. SAS drives are just as efficient for sequential I/O. See the full explanation below for the reasoning.
Question
You are migrating a database on NFS to a new VNX. The customer notes that you have designated only SAS drives for the database transaction logs and not any Flash drives. The customer believes that the Flash drives will greatly increase transaction log performance. What is the reason that you chose SAS drives?
Options
- AFlash drives are most efficient for small block random I/O
- BSAS drives are just as efficient for sequential I/O
- CThe transaction logs vary in size and can be sequential or random I/O
- DDatabases cannot sustain multiple concurrent I/Os.
How the community answered
(42 responses)- A17% (7)
- B71% (30)
- C5% (2)
- D7% (3)
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