To enable the Database Smart Flash Cache, you configure the following parameters:
DB_FLASH_CACHE_FILE = ‘/dev/flash_device_1’ , ‘/dev/flash_device_2’
DB_FLASH_CACHE_SIZE=64G
What is the result when you start up the database instance?
A.
It results in an error because these parameter settings are invalid.
B.
One 64G flash cache file will be used.
C.
Two 64G flash cache files will be used.
D.
Two 32G flash cache files will be used.
Explanation:
100% A
You can specify up to 16 file sizes, for each of the flash memory devices specified with DB_FLASH_CACHE_FILE. For example, if there are three flash raw devices, you can specify the sizes of EACH device. Also tested…
Corret is A:
An error is raised if the number of specified sizes does not match the number of specified files.
For example, if there are three flash raw devices, you can specify the sizes of each device as follows:
db_flash_cache_file = /dev/raw/sda, /dev/raw/sdb, /dev/raw/sdc
db_flash_cache_size = 32G, 32G, 64G
Correct Answer is A
A
A