Monday, 6 May 2013

Research Links - 5th May 2013

## Citrix ##

Citrix XenDesktop Best Practices with Cisco UCS (Recorded Webinar)
*With summarized Q&A from the Webinar!

NetScaler 10 Build 75.X Release Notes (Released April 2013)

Consulting Pre-packaged Services Offerings (United States)

## LUN Serial Changes ##

Migrate storage for SQL Cluster (MSCS) using snapmirror

Automating LUN Serial changes after Netapp head swap using Powershell

LUN Migration Tool
*Migrates LUN serials too

## Microsoft ##

Hyper-V: Update List for Windows Server 2012
Especially beware of a bug with ODX and NTFS which can cause virtual machine files to become corrupted during a live migration using ODX. Initial recommendation from MS is to disable ODX.

Windows Server 2012 Storage Virtualization Explained

## NetApp ##

Are You Fluent in Flash?

Flash Pool – Turbo-charging FAS2200 for a Better Ride

How to Create and Use Flash Pool (7DOT)?
FAS> aggr create fpAggr -B 64 -t raid_dp -T SATA -r 16 16
FAS> aggr options fpAggr hybrid_enabled on
FAS> aggr add fpAggr -T SSD 6

What is deswizzle*?
“Because all data transferred with volume SnapMirror must be deswizzled on the destination, as well as the relinked buffer trees, there may be an increase in deswizzling time when using deduplication on the volume SnapMirror source. In a cascaded scenario where the volume SnapMirror is to be transferred by using qtree SnapMirror or SnapVault, it is a best practice to allow the deswizzle scanners running on the volume SnapMirror destination volumes to complete before the transfer.”
*From the ‘NetApp Deduplication for FAS and V-Series Deployment and Implementation Guide TR-3505’

NetApp Data ONTAP PowerShell Toolkit

## NetApp KB ##

FAQ: Top 10 NDMP issues and solutions

## Networking ##

VXLAN Series – Multicast Basics

## OpenStack ##

Create an OpenStack lab in VMware Workstation

## Storage ##

Calculate IOPS in a storage array

Table: Average IOPS/drive

Table: I/O Impact of RAID

## VMware View ##

Trending Issues: System Management problems with VMware View (2051281)

The VMware View 5.1 Reference Architecture for Floating Desktops on NetApp Storage

VMware View 5.1: View Storage Accelerator & View Composer API Integrations with NetApp

Storage Considerations for VMware View Best Practices

## VMware vSphere ##

VMware vCenter Server 5.1 Update 1 Released
Posted on April 25, 2013 by Justin King
- vCenter Server is now supported on Windows Server 2012
- vCenter Server now supports Microsoft SQL Server 2012

ALERT: Login issue after updating to vCenter 5.1 Update 1
“Customers with SSO configured with multiple domain-based identity sources along with vCenter Server domain user accounts that are associated with a large number of groups should not upgrade to vCenter Server 5.1 Update 1.”

Did you know vCenter Server can manage multiple hypervisors?
+ What’s New in Multi-Hypervisor Manager v1.1
+ You can download vCenter Multi-Hypervisor Manager for vCenter Server from the Download VMware vSphere 5.1 Update 1 page here.

New Hands-on Lab – An In-depth Exploration of vCloud Networking and Security

Setting Perennial Reservations for MSCS with EMC CX/VNX Arrays
Something to beware of if using Microsoft Clustering (MSCS) via physical RDMs in a vSphere 5.x environment - “the hosts in the cluster started experiencing odd behaviour. Rescanning for new devices or VMFS volumes was taking 10 minutes or more. If I rebooted one of the hosts that would also take 10+ minutes. After a bit of research, and speaking with our VMware TAM, I figured out the problem; perennial reservations. Perennial reservations themselves was not the issue, it was more the lack of perennial reservations that was causing the problem.”

esxcli storage core device setconfig -d naa.id --perennially-reserved=true

Where is the virtual adapter migrating option in Next Generation Client?

Image: vSphere Web Client Migrate Virtual Network Adapter

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