Synology DS415+ Review: DSM on Intel Rangeley
by Ganesh T S on October 30, 2014 7:30 AM EST- Posted in
- NAS
- Storage
- Intel
- Synology
- Silvermont
- Enterprise
- Rangeley
Encryption Support Evaluation
Consumers looking for encryption capabilities can opt to encrypt a iSCSI share with TrueCrypt or some in-built encryption mechanism in the client OS. However, if requirements dictate that the data must be shared across multiple users / computers, relying on encryption in the NAS is the best way to move forward. Most NAS vendors use the industry-standard 256-bit AES encryption algorithm. One approach is to encrypt only a particular shared folder while the other approach is to encrypt the full volume. Synology supports only folder-level encryption for now in DSM.
On the hardware side, encryption support can be in the form of specialized hardware blocks in the SoC (common in ARM / PowerPC based NAS units). In x86-based systems, accelerated encryption support is dependent on whether the AES-NI instruction is available on the host CPU. One of the most attractive features of the Intel Rangeley platform / Silvermont cores is full hardware acceleration for all essential cryptography functions. The results, as you can see below, are consistent across all evaluated scenarios. The penalty compared to unencrypted shares is non-existent.
The write performance with encrypted shares could do with some improvement (for certain workload traces). Other than that, the higher clock for the SoC (compared to the Seagate NAS Pro) and the presence of AES-NI in the SoC (compared to its absence in the SoC used in the QNAP TS-451) enable the DS415+ to come out trumps in most of the above benchmarks.
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stbufraba - Sunday, November 2, 2014 - link
Did anyone try DDR3L memory modules in the DS415+?