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Question 36/90
Which two are true about sparse griddisks and their use in disk groups on an X5 Exadata Database Machine?
Correct Answer: A,E
Explanation/Reference:
A: A sparse ASM disk group is composed of sparse grid disks.
E: Sparse grid disks allocate space as new data is written to the disk, and therefore have a virtual size that can be much larger than the actual physical size. Sparse grid disks can be used to create a sparse disk group to store database files that will use a small portion of their allocated space. Sparse disk groups are especially useful for quickly and efficiently creating database snapshots on Oracle Exadata. Traditional databases can also be created using a sparse disk group.
References:
http://docs.oracle.com/cd/E80920_01/SAGUG/exadata-storage-server-snapshots.htm#SAGUG-GUID-
42945059-13FD-4F6A-B7FA-A1201D16238F
http://docs.oracle.com/cd/E80920_01/DBMSO/exadata-whatsnew.htm#DBMSO22120
A: A sparse ASM disk group is composed of sparse grid disks.
E: Sparse grid disks allocate space as new data is written to the disk, and therefore have a virtual size that can be much larger than the actual physical size. Sparse grid disks can be used to create a sparse disk group to store database files that will use a small portion of their allocated space. Sparse disk groups are especially useful for quickly and efficiently creating database snapshots on Oracle Exadata. Traditional databases can also be created using a sparse disk group.
References:
http://docs.oracle.com/cd/E80920_01/SAGUG/exadata-storage-server-snapshots.htm#SAGUG-GUID-
42945059-13FD-4F6A-B7FA-A1201D16238F
http://docs.oracle.com/cd/E80920_01/DBMSO/exadata-whatsnew.htm#DBMSO22120
- Question List (90q)
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