How many RAID 1/0 15K spindles will the transaction log volume require?
You are working with a customer to design a VNX for Block solution for their SQL database.
They currently have a CX4-480. In the past they have co-located their database and log
files. In the new VNX design, the database will be placed in a FAST VP enabled pool. The
transaction logs will be placed on a traditional RAID Group. Your customer needs help
determining the number of spindles they need to satisfy the needs of their transaction logs.
You know the following:
Transaction period: 8 hours (business day)
ThrougEMCut during transaction period: 240 GB
How many RAID 1/0 15K spindles will the transaction log volume require?
Which action would be most effective in reducing the performance impact of a Snapshot on a Source LUN?
Which action would be most effective in reducing the performance impact of a Snapshot on
a Source LUN?
What would you recommend to the customer?
A customer has a VNX system to provide storage for a VMware Cluster with five ESX hosts.
Each ESX host has one dual-port FC HBA connected to two FC switches. They are using
VMware native failover functionality for high availability and load-balancing. The customer
requires higher availability for the ESX host connectivity to the storage system. What would
you recommend to the customer?
What availability features would you recommend to the customer?
A customer would like to configure their VNX for File for the highest possible level of client
availability. There are five Ethernet ports on a single DataMover and a single Ethernet switch
available for client communications.
What availability features would you recommend to the customer?
How should the customer configure the VNX for the network?
A customer would like to use five Ethernet ports on a VNX to increase the port and switch
availability. Two non-stackable Ethernet switches are available for the VNX and both support
Full Duplex communications.
How should the customer configure the VNX for the network?
What volume type is required to meet the customer’s protection needs?
A client has asked for assistance with designing his Exchange environment. The
environment today is fully virtualized and Exchange will be as well. The client is concerned
about local recovery and has decided to make VMware snapshots of their VMFS File system
housing Exchange. The VMware servers are all attached through fiber to a VNX. What
volume type is required to meet the customer’s protection needs?
Which workload characteristic of Exchange would produce poor access times on a compressed LUN?
A customer has created a thin LUN, enabled compression on a LUN Pool, and installed their
Exchange environment. The Exchange application is showing poor performance. Which
workload characteristic of Exchange would produce poor access times on a compressed
LUN?
which would be the first solution you would recommend?
You are migrating a backup application that runs on physical servers to a VDC. The VDC
storage is currently a VNX configured with NL-SAS drives only. Your customer is concerned
about the cost to achieve reasonable performance. You are designing the VMs that will
support the application. Based on cost, which would be the first solution you would
recommend?
Where in the RAID Group would you recommend placing the two heavily used LUNs for a “short-stroked” archit
Your customer is designing a Proof of Concept with SQL Server attached to a VNX. The
storage design includes seven LUNs on a RAID Group. The system is generally very heavily
loaded, with a particularly high load on the cache. This is a very carefully controlled
environment and your customer has asked for assistance in planning the layout of the LUN
location on the physical spindles. Where in the RAID Group would you recommend placing
the two heavily used LUNs for a “short-stroked” architecture?
Which value would you change to meet this requirement?
A customer is about to implement your VNX for File design for a file-sharing environment.
The design specifies both NFS and Windows clients that access file systems in a
multithreaded manner. All file systems will be created using the Automatic Volume Manager.
The customer is most concerned with disk efficiency, and wants to use all storage in each
pool entry before creating another.
Which value would you change to meet this requirement?