Oracle OCP 1Z0-053 (ASM)
524.What are three benefits of using ASM? (Choose three.)
A. Ease of disk administration and maintenance
B. Load balancing across physical disks
C. Software RAID-1 data redundancy with double or triple mirrors
D. Automatic recovery of failed disks
Answer: ABC
D錯誤
C在軟體層面的RAID-1
(RAID 1通過磁碟資料映象實現資料冗餘,在成對的獨立磁碟上產生互 為備份的資料。當原始資料繁忙時,可直接從映象拷貝中讀取資料,因此RAID 1可以提高讀取效能。RAID 1是磁碟陣列中單位成本最高的,但提供了很高的資料安全性和可用性。當一個磁碟失效時,系統可以自動切換到映象磁碟上讀寫,而不需要重組失效的資料。)
A. Ease of disk administration and maintenance
B. Load balancing across physical disks
C. Software RAID-1 data redundancy with double or triple mirrors
D. Automatic recovery of failed disks
Answer: ABC
D錯誤
C在軟體層面的RAID-1
(RAID 1通過磁碟資料映象實現資料冗餘,在成對的獨立磁碟上產生互 為備份的資料。當原始資料繁忙時,可直接從映象拷貝中讀取資料,因此RAID 1可以提高讀取效能。RAID 1是磁碟陣列中單位成本最高的,但提供了很高的資料安全性和可用性。當一個磁碟失效時,系統可以自動切換到映象磁碟上讀寫,而不需要重組失效的資料。)
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