What is a best practice when configuring a Symmetrix VMAX for optimal performance and cost?
What is a best practice when configuring a Symmetrix VMAX for optimal performance and cost?
Which drive size do you recommend and why?
You are proposing a new VMAX array with FAST VP. The customer reports their application needs a small amount of EFD capacity and asks whether 200 GB EFDs or 400 GB EFDs would provide better overall performance. Which drive size do you recommend and why?
What is a criterion that must be met for a cache slot to be eligible for donation?
A Symmetrix VMAX has been configured with Dynamic Cache Partitions.
What is a criterion that must be met for a cache slot to be eligible for donation?
What will happen if an application running in a flexible partition reaches the write pending limit set for tha
A Symmetrix VMAX hosts four applications. Each application is assigned a named dynamic cache partition. Two of the partitions are static and two are flexible. The write pending limit for each partition is set to 60%.
What will happen if an application running in a flexible partition reaches the write pending limit set for that partition?
What will happen if an application running in a static partition reaches the write pending limit set for that
A Symmetrix VMAX hosts four applications. Each application is assigned a named dynamic cache partition. Two of the partitions are static and two are flexible. The write pending limit for each partition is set to 60%.
What will happen if an application running in a static partition reaches the write pending limit set for that partition?
What can be used to separate the different workloads?
A customer is using virtual provisioning on a Symmetrix VMAX which is being shared for Production and non-production workloads.
What can be used to separate the different workloads?
What do you recommend?
You are designing a new VMAX implementation. All applications will share physical drives and participate in SRDF/S replication.
The customer has two high I/O applications used for OLTP and a several low I/O applications used for testing. The customer wants to ensure the high I/O applications take precedence over the low I/O applications on the VMAX array. What do you recommend?
Which condition results in effective prioritization by Symmetrix Priority Controls (SPC)?
Which condition results in effective prioritization by Symmetrix Priority Controls (SPC)?
What is the least disruptive and most cost effective way to make more thin pool space available?
A storage administrator receives a warning message that one of the thin pools in the Symmetrix is low on storage space. The pool contains a large number of thin devices that have been fully preallocated but have small amounts of used space. What is the least disruptive and most cost effective way to make more thin pool space available?
What can happen if an over-subscribed thin pool becomes full?
What can happen if an over-subscribed thin pool becomes full?