What is controller cache?
The controller cache is a physical memory space that streamlines two types of I/O (input/output) operations: between the controllers and hosts, and between the controllers and disks.
What is cache flushing?
When the amount of unwritten data in the cache reaches a certain level, the controller periodically writes cached data to a drive. This write process is called "flushing."
What is cache block size?
The storage array's controller organizes its cache into "blocks," which are chunks of memory that can be 8, 16, 32 KiB in size. All volumes on the storage system share the same cache space; therefore, the volumes can have only one cache block size.
When should I synchronize storage array clocks?
You should manually synchronize the controller clocks in the storage array if you notice that the time stamps shown in System Manager are not aligned with time stamps shown in your management client (the computer that is accessing System Manager through the browser). This task is only necessary if NTP (Network Time Protocol) is not enabled in System Manager .
What is host connectivity reporting?
When host connectivity reporting is enabled, the storage array continuously monitors the connection between the controllers and the configured hosts, and then alerts you if the connection is disrupted.