EMC VNX – POOL PERFORMANCE PLANNING
In this post I will give a guideline on how to calculate the required drive count for a VNX Pool based on Throughput performance (IOPS). This is only a Rough-Order-of […]
EMC VNX – Replacing a Failed Disk and Updating Firmware
Replacing a Disk in a VNX is quite a simple task if the correct procedure is followed (Discover the failed drive BED naviseccli -h SP_IP faults -list). In this post […]
EMC RecoverPoint – Updated FC Port Labeling on RP Gen5 Server
This is one that caught us by surprise! As per previous blog Post “EMC RecoverPoint Architecture and Basic Concepts” this is the port configuration as per the initial release of […]
EMC VNX – Managing Data Mover (Blade) Relationships
Today I had a VNX Data Mover (Blade) slic issue where the failover relationships were not as they should be. The following commands are very useful for checking the relationships […]
EMC RecoverPoint Journal and Replica Volume – Performance Considerations
In this post I will detail some considerations for RecoverPoint Journal and Replica Volumes from a Performance Perspective. This will give you some insight into the workings and designs that […]
EMC VNX – LUN MIGRATION
This post is a result of having to migrate Cisco UCS Blade boot LUNs between Raid Groups. Both the source and destination were Classic LUNs – RAID Group LUN (FLARE […]
EMC RecoverPoint Considerations for Journal sizing – Protection Windows
A very important consideration is the capacity sizing of your RecoverPoint journals which is done on a per Consistency Group basis. This will dicatate the level of failback allowed (Protection Window) on a per CG configuration. The JV must have the correct performance characteristics in order to handle the total write performance of the LUN(s) being protected (next blog). They […]
EMC RecoverPoint Architecture and Basic Concepts
This is my first blog on RecoverPoint; in this initial post I will detail some of the basic concepts and terminology around RecoverPoint and the GEN 5 hardware appliance specification. […]
EMC VNXe Configuration Using Unisphere CLI (Part 2)
This is the second part in the series on configuring the VNXe via command line. Here I will detail the Steps involved in creating both NFS and iSCSI datastores. The configuration steps outlined in Part2 will be the following: LACP Configuration Create the Network Interface for NFS NFS Shared Folder Server Configuration Create NFS datastores Creating iSCSI Interfaces/Nodes/Datastores LACP Configuration Link […]
EMC VNXe Configuration Using Unisphere CLI (Part 1)
This is the first in a series of blog posts on configuring VNXe using the command line. All the configurations here will be performed using “uemcli” which can be downloaded here . If you prefer to use the GUI interface then Henri has a very good series of blog posts here. The following scripts defined here are very useful if […]
EMC VNX OE Upgrade Via USM (Dual CS)
Here I will detail the steps involved in upgrading the OE for file and block on the VNX. Using the Unisphere Service Manager is the recommended method of upgrade. The […]
EMC VNX – FAST CACHE
EMC ‘FAST Cache’ technology gives a performance enhancement to the VNX Storage Array by adding FLASH drives as a Secondary Cache, working hand-in-hand with DRAM Cache and enhancing overall Storage […]
DavidRing.ie 