MDS MX-2104 Uživatelský manuál stáhnout pdf (Strana 44)

Management components

VCE Vblock™ Systems Series 700 Architecture Overview

Storage features support

This topic presents additional storage features available on Vblock Series 700.

vStorage APIs for Array Integration (VAAI)

Vblock 700 models support VMware vStorage APIs for Array Integration (VAAI). This technology improves

overall storage performance by offloading various host resource-intensive tasks to the SAN hardware.

VAAI is supported for block protocols only. VAAI is automatically enabled within a Vblock system with the

following software version or higher: EMC Symmetrix VMAX Enginuity 5875 and VMware ESX(i) 5.0. The

following features are supported:

•

Full copy offload

•

Block zeroing (Copy Same)

•

Hardware assisted lock management

•

Thin provisioning (TP) stun

File deduplication

File deduplication is supported on the EMC VNX VG2 Gateway or the EMC VNX VG8 Gateway, but is not

enabled by default. Note that enabling this feature requires thorough knowledge of capacity and storage

requirements. Refer to

EMC VNX VG2 Gateway and EMC VNX VG8 Gateway.

External NFS and CIFS access

Vblock systems can present CIFS and NFS shares to external clients provided that these provisions are

followed:

•

Requires dedicated X-Blades for access by hosts outside of Vblock systems

•

Vblock system shares cannot be mounted internally by Vblock system hosts and external to the

Vblock system at the same time

•

In a configuration with two X-Blades, mixed internal and external access is not supported. The

following configurations are supported:

–

External NFS and external CIFS only

–

Internal NFS and internal CIFS only

•

In a configuration with more than two X-Blades, external NFS and CIFS access runs on one or more

X-Blades that are physically separate from the X-Blades serving VMFS datastores to the Vblock

system compute layer

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MDS MX-2104 Uživatelský manuál Strana 44