Ingrasys nastorage 12600 series, Руководство пользователя

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The following functions are available for the 12600 series:
Add Cache Disk : The 12600 series supports the Cache Disk function. The cache disk
function manages buffer memory resources to acquire, manage, and release limited
memory resources. Using an SSD disk as the cache memory, with its larger capacity, the
buffer memory for the file system can be significantly expanded.
Once data is read into the system's main memory ARC, a replica is immediately placed at
the SSD ARC. Once the data needs to be read once again, data can be rapidly retrieved
from the SSD ARC (also known as the L2 ARC).
Add Intent Log Disk : The Intent Log index record keeps the transaction record using an
added SSD disk. The file system utilizes this methodology to facilitate data writes, while
maintains the safety of files in the event of file system crash.
Due to the fact that writing these intent log can also consume system resources, these
log can be written to a separate SSD disk in order to avoid impact to the disk read/write
performance.