Gain insights into SRDF Adaptive Copy mode for the Dell DES-1121 certification exam. Learn how PowerMax handles network bandwidth constraints in data replication.
Table of Contents
Question
A production PowerMax array has been configured to replicate to a disaster recovery (DR) array using SRDF Adaptive Copy mode. There are occasional bandwidth constraints on the network connecting the two arrays. These bandwidth constraints prevent the immediate replication of production data.
Where does the new production data accumulate until it can be replicated to the array at the DR site?
A. Local journal volumes
B. Local array cache
C. R1 device
D. R2 device
Answer
B. Local array cache
Explanation
In a PowerMax array configured to replicate to a disaster recovery (DR) array using SRDF Adaptive Copy mode, when there are bandwidth constraints on the network connecting the two arrays, the new production data accumulates in the Local array cache until it can be replicated to the array at the DR site. So, the correct answer is B. Local array cache.
SRDF (Symmetrix Remote Data Facility) is a family of software products that facilitates the data replication from one Symmetrix storage array to another through a storage area network or IP network. The SRDF Adaptive Copy mode is designed to handle situations where there are occasional bandwidth constraints. In this mode, the new production data is temporarily stored in the local array cache until the network bandwidth is available to replicate the data to the DR site.
Dell DES-1121 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Dell DES-1121 exam and earn Dell DES-1121 certification.