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Write Protect
When “Write Protect” is enabled on the “Create Volume Set”, host commands fail if they are
issued to a volume in that RAID controller and attempt to modify a volume’s data or attributes.
“Write Protection” is used primarily for customer-initiated disaster recovery testing.
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IO Mode
The Cache IO and Direct IO cache policies apply to read on a specific virtual disk. The volume IO
mode options are as follows:
1.
Cache IO: Specifies that all reads are buffered in the controller cache memory.
2.
Direct IO: Specifies that reads are not buffered in cache memory. When using direct IO
mode, data is transferred to the controller cache memory and the host system
simultaneously during a read request.
If a subsequent read request requires data from the same data block, it can be read directly
from the controller cache memory.
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