Dell SRDF Introduction
This document provides an introduction to the Symmetrix Remote Data Facility (SRDF) and its uses in disaster recovery, high availability, and data migration applications. Audience This document is intended for Dell Technologies customers who …
SRDF Operations Steps - Dell
Apr 6, 2010 · Following are some typical steps for SRDF/S operations. I hope it will helpful to you. To get the details, please refer "SRDF Control Operations Guide" attached. Its an excellent handbook. Display info. about R1 and R2 devices # symrdf list # symdev list R1 # symdev list R2. Create device group & add devices into it # symdg create -type
Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide
Remove devices from an SRDF/Star concurrent consistency group. Verify remove operation for concurrent CG; Remove devices from an SRDF/Star cascaded consistency group. Verify remove operation for cascaded CG; Recovering from a failed consistency group modification. SRDF pair states of devices in an SRDF/Star CG after a recovery
Difference between SRDF Synchronous and SRDF Asynchronous
May 2, 2013 · Asynchronous SRDF (SRDF/A) transfers changes made to the secondary array in units called delta sets, which are transferred at defined intervals. Although the remote copy of the data will never be as current as the primary copy, this method can replicate data over considerable distances and with reduced bandwidth requirements and minimal impact ...
Dell SRDF/Metro vWitness Configuration Guide
powermax-8500 | Dell SRDF/Metro vWitness Configuration Guide | product-overview
【专家问答精华整理】Symmetrix的远程复制技术SRDF的实现及解 …
Nov 26, 2012 · 7.SRDF使用的网络与带宽需求. SRDF目前都是用在传统的FC SAN网络(RF)或以太网(RE)中。网络带宽和数据量大小有关，新的写IO有多大，消耗的网络带宽就有多大。通常第一次做数据全同步是使用Adaptive Copy模式的。 异步SRDF在网络质量不好的情况下也不会对性能造 …
The overview of SRDF/A session drop reason and 3 cases sharing
Nov 6, 2016 · SRDF/A cache usage limitation: 74% in VMAX, 94% prior to VMAX. Ex: VMAX WP is 75%, SRDF/A is 74%. SRDF Group session priority: RDF group attributes session_priority used to determine which SRDF/A sessions to drop if cache becomes full. Values range from 1 to 64, with 1 being the highest priority (last to be dropped).
【专家问答第五期】基于Symmetrix的远程复制技术SRDF的实现及 …
Nov 6, 2012 · 好消息，EMC中文论坛里新一期的“专家问答”活动即将开启。从11月12日（周一）开始为期两周的时间里，我们将和大家一起讨论和分享与 基于Symmetrix的远程复制技术SRDF的实现及解决方案 有关的话题和心得。以往所有已完成的“专家问答”活动可参考这个汇总贴。 本期讨论主题：基于Symmetrix的远程 ...
SRDF/A - SYMRDF Commands and Confusion! - Dell
Jun 24, 2008 · In practice you should consider SRDF "update"(s) prior to the failback to shift over the bulk of the data. (NB: An SRDF "update" always makes the data on the R1 inconsistient, until the failback is complete). Once the failback is complete the SRDF state will be "Synchronised" and writes to the R1 will be synchronously mirrored to the R2 as usual.
SRDF/A cycle switch - Dell
Jun 2, 2017 · With SRDF/A (specifically in asynchronous mode) everything runs in cycles. When you first flip to async mode it all starts with the first cycle to gather data that changes on the source device(s). The array tracks the changes to the source for a period of time defined by the minimum cycle time.