Dell-EMC
D-ISM-FN-23 · Question #254
A host sends one write /O to the RAID 1 array. How many writes does it take for the array to store the data?
The correct answer is C. Two write I/Os. A RAID 1 set consists of two disk drives and every write is written to both disks.
Data Storage Technologies
Question
A host sends one write /O to the RAID 1 array. How many writes does it take for the array to store the data?
Options
- ASix write 1/Os
- BFour write I/Os
- CTwo write I/Os
- DOne write I/Os
How the community answered
(20 responses)- A5% (1)
- B10% (2)
- C70% (14)
- D15% (3)
Explanation
A RAID 1 set consists of two disk drives and every write is written to both disks.
Topics
#RAID 1#write I/O#mirroring#write penalty
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