protocol srdf symm id rdf_group
Adds a selective optimization Remote Data Facility (RDF) rule for traffic coming from Symmetrix GigE ports (RE ports).
Syntax
[no] protocol srdf symm id <name> rdf_group <rdf-group> optimization {sdr-default | lz-only | none} [description <description>]
Parameters
<name> | Symmetrix ID. The Symmetrix ID is an alpha-numeric string (for example, a standard Symmetrix serial number: 000194900363). |
<rdf-group> | RDF group. An RDF group is a number from 1-255 by default, or 0-254 if the protocol symm id base_rdf_group setting has been set to 0. |
optimization <policy> | Specifies an optimization policy: • sdr-default - Enables SDR and LZ compression. The default value is sdr-default. • lz-only - Enables LZ compression only. There is no SDR optimization with this setting. • none - Disables SDR and LZ compression. |
description <"description"> | Provides a description about the RDF rule. The description must be enclosed with quotation marks ("). For example, Oracle Applications. |
Usage
SRDF selective optimization enables you to set different optimization levels for RDF groups. The optimization level is based on the compression characteristics of the data in the groups. For each Symmetrix ID, you specify an optimization policy for the RDF groups that appear in the data stream associated with the specified ID.
You can configure the optimization level from no compression (none) to full Scalable Data Replication (sdr-default). SDR optimization includes LZ compression on the cold, first-pass of the data. You can also configure LZ-compression alone (lz-only) with no SDR. For some applications, it might be more important to get maximum throughput with minimal latency, and without compression, (such as, when excess WAN bandwidth is available and when it's known that the data in that RDF Group will not be reducible), and for others getting maximum reduction is more important.
The no protocol srdf symm id <group ID> removes the optimization setting for the group ID.
Example
amnesiac (config) # protocol srdf symm id 0815 rdf_group 1 optimization lz-only description "Oracle Forms"
Product
SteelHead CX, SteelHead EX, SteelHead-v, SteelHead-c
Related Commands
SnapMirror Support Commands
This section describes commands that provide optimization support for NetApp SnapMirror data replication operations. SnapMirror is a licensed utility used for disaster recovery and replication. The SteelHead appliance improves the performance of the WAN for NetApp SnapMirror by overcoming limited bandwidth restrictions, high latency, and poor network quality commonly associated with wide-area networks. RiOS 8.5 introduces new advanced benefits that further improve WAN performance, visibility, and control of NetApp SnapMirror. Advanced SnapMirror optimization support is for environments using NetApp Data ONTAP v7 or Data ONTAP v8 operating in 7-mode.