Controller Settings for Nytro Cache Drive

> Controller Settings for Nytro Cache Drive

> Current Write Policy

> Write Policy: Write Back, RAID 1 (optimum controller settings (default))/Write Through, RAID 0.

> A virtual drive property that indicates whether the virtual drive currently supports Write Back mode or Write Through mode.

> | In Write Back mode, the controller sends a data transfer completion signal to the host when the controller cache has received all of the data in a transaction.

> | In Write Through mode, the controller sends a data transfer completion signal to the host when the drive subsystem has received all of the data in a transaction.

> | Nytro Write Back Caching

> RAID 1 Write Back caching: Delivers high application performance acceleration for write-intensive random I/O workloads (mirroring of Flash and losing half the total Flash capacity).

> | Nytro Write Through Caching

> RAID 0 and RAID 1 Write Through caching: Delivers high application performance acceleration for read-intensive random I/O workloads. In RAID 1 Write Through caching, the application does not receive confirmation of the write completing until the HDD is written.

> | Supported RAID levels for external volume support

> RAID 0, RAID 1, RAID 5, RAID 6, and RAID 00

> | Supported RAID levels for Nytro Cache drive

> RAID 0 and RAID 1

> R1-EC (only for full capacity)

> NOTE Nytro MegaRAID controller 1.5 Autoconfig is R1-EC, which is changed to RAID 1 Write Back in Nytro MegaRAID controller 1.6.

DB15-000988-08-December 2013
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