70-450 · Question #76
You are a professional level SQL Sever 2008 Database Administrator. A new database should be deployed, and the capacity requirements listed below should be satisfied. There should be 275 GB for the…
The correct answer is B. A RAID 1 volume and a RAID 5 volume should be utilized. "maximize the write performance of the transaction log." - "you should protect the database and transaction log files, when a drive fails" To maximize the per1 of the transaction log and have it protected, for this, you should use the raid 1, because it is a disk mirror and the…
Question
You are a professional level SQL Sever 2008 Database Administrator. A new database should be deployed, and the capacity requirements listed below should be satisfied. There should be 275 GB for the database data file, while there should be 50 GB for the transaction log file. There are six 100-GB disk drives which are accessible for the database in the storage array. The six disks are attached to a redundant array of independent disks (RAID) controller, and the controller supports RAID levels 0, 1, 5, and 10. Since you are the technical support, you are required to maximize the write performance of the transaction log. In addition, you should protect the database and transaction log files, when a drive fails. The storage system should be designed. From the following four storage configuration, which one should you utilize?
Options
- AA single RAID 5 volume should be utilized.
- BA RAID 1 volume and a RAID 5 volume should be utilized.
- CA single RAID 10 volume should be utilized.
- DA RAID 0 volume and a RAID 5 volume should be utilized.
How the community answered
(18 responses)- A11% (2)
- B78% (14)
- C6% (1)
- D6% (1)
Explanation
- "maximize the write performance of the transaction log." - "you should protect the database and transaction log files, when a drive fails" To maximize the per1 of the transaction log and have it protected, for this, you should use the raid 1, because it is a disk mirror and the size is 50GB, the half of the 100GB, but you need two disks for this. Then it will only remains four disks, but you can't have RAID 1 for the data files as the data file is 275GB. So, RAID 5 is the only solution.
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