Consider this CellCLI command:
CellCLI> CREATE GRIDDISK ALL HARDDISK PREFIX=data, size=423G;
Which two statements describe what happens when you execute this command?
A.
It creates one 423 GB grid disk on the first available cell hard disk.
B.
It creates one 423 GB grid disk on each available cell hard disk.
C.
It creates grid disks on the outermost 423 GB that is available on each hard disk.
D.
It creates grid disks on the innermost 423 GB that is available on each hard disk.
E.
It creates an Exadata Smart Flash Cache on all flash drives.
Explanation:
* Example:
CellCLI> create griddisk all harddisk prefix=temp_dg, size=570G
This command will create 12 Griddisks, each of 570G in size from the outer (fastest) sectors of the
underlying Harddisks. It fills up the first 2 Celldisks entirely, because they have just 570G space
free – the rest is already consumed by the OS partition.
I think ans is C, D
Options B, C are correct.
B & C
B, C
http://docs.oracle.com/cd/E50790_01/doc/doc.121/e50471/cellcli.htm#SAGUG20624
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The HARDDISK option limits the CREATE GRIDDISK command to cell disks that are hard disks.
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If the ALL PREFIX option is entered with the command, then one grid disk is created on each cell disk on the cell. PREFIX is required when ALL is used.
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Offset determines the position on the disk where the grid disk is allocated. The outermost tracks have lower offset values, and these tracks have greater speed and higher bandwidth. Offset can be explicitly specified to create grid disks that are relatively higher performing than other grid disks. If offset is not specified, then the best (warmest) available offset is chosen automatically in chronological order of grid disk creation. You should first create the grid disks that are expected to contain the most frequently accessed (hottest) data, and then create the grid disks that contain the relatively colder data.
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