mario_n

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NPV and NPIV

The CCIE Data Center blueprint makes mention of NPV and NPIV, and Cisco UCS also makes heavy use of both topics, topics that many may be unfamiliar …

Understanding NPIV and NPV

27 Nov 2009 · Filed in Education<p>Two technologies that seem to have come to the fore recently are NPIV (N_Port ID Virtualization) and NPV (N_Port …

VMware or Microsoft? Comparing vSphere 5.5 and Windows Server 2012 R2 Hyper-V At-A-Glance

<b>UPDATES:</b> Based on strong feedback from the community, I've made the following updates to this article ...<p>Added new row for Virtualization of Serial …

Nagios Core Demo

Nagios Core Demo System<p>Welcome to the Nagios Core demo system.<p>Account Credentials<p>You can access the demo with different accounts to get a different …

Rights & Freedoms

Architectural Decisions

Over the many years I have been working with VMware products, I have been involved with countless Virtualization projects where I have made numerous …

Virtualization

Raw Device Mapping (RDM) DeepDive

What is it?<p>RDM is mapping file used to map a LUN directly to VM bypassing VMFS layer. This LUN can be formatted using any File System (NTFS or FAT32) …

A look at solving the VDI IOPS problem

Home <b>›</b> VDI <b>›</b> <b>A look at solving the VDI IOPS problem</b><p><i>on</i> March 15, 2010 • ( 16 )<p>One of the great things about working for a VAR is that I get to evaluate …

High Scalability -

Monday<p>Apr2018<p>Monday, April 30, 2018 at 9:00AM<p>Well, not exactly Fishin', but I'll be on a month long vacation starting today. I won't be posting new …

Scalability

Replication, Clustering, and Connection Pooling

Introduction<p>There are many approaches available to scale PostgreSQL beyond running on a single server. An outline of the terminology and basic …

Databases

Storage Sizing Considerations when Virtualizing Business Critical Applications

One of my fellow vExperts, Prasenjit Sarkar, has recently published a blog article titled Virtualizing BCA – What about application IO …

W którą stronę skalować?

Skalowalność jest jedną z ważniejszych cech dzisiejszej infrastruktury IT i wynika to nie tylko ze wzrostu rozmiarów firm. Głównym zjawiskiem, które …

Overview of High Availability

Table 1-1 Causes of Unplanned Downtime<p>Type<p>Description<p>Examples<p>Site failure<p>A site failure may affect all processing at a data center, or a subset of …

Databases

VMware Knowledge Base

VMware Knowledge Base

VMware Knowledge Base

Comparing WS2012 R2 Hyper-V and vSphere 5.1

Bring on the hate! (which gets *ahem* moderated but those vFanboys will attempt to post anyway). Matt McSpirit of Microsoft did his now regular …

Virtualization

Windows Server 2012 Hyper-V Features Glossary

I’m going to do my best (no guarantees) to update this page with a listing of each <i>new</i> WS2012 Hyper-V (and related) feature as it is revealed by …

Virtualization

Windows Server 2012 Licensing In Detail

New, Simpler, Better Value Licensing Announced For WS2012 and Some SBS Changes<p><i>Note: I saw the announcement when it first came out and have been</i> …

Virtualization

Appendix D: Server Performance Analyzing and Scaling

Published: February 25, 2008<p>The following information identifies important monitoring counters used for capacity planning and performance monitoring …

SQL Server and HBA Queue Depth Mashup

Using SAN storage for your SQL Server instance? If so, you should take into consideration the host bus adapter (HBA) queue depth setting. In a …

What Causes Exchange Disk I/O: Exchange 2007 Help

The following table describes Mailbox server role activities, and how each activity affects disk I/O.<p>Mailbox server role activities in Exchange …

Exchange 2007 Mailbox Server Role Storage Requirements Calculator

EDIT: This post has been updated on <b>5/6/10</b> for the new version of storage calculator. For the list of latest major changes, please see THIS.<p>In order …

Mailbox Server Storage Design: Exchange 2007 Help

Microsoft Exchange Server 2007 will reach end of support on April 11, 2017. To stay supported, you will need to upgrade. For more information, see …

Increasing the queue depth?

When it comes to IO performance in the virtual infrastructure one of the most recommended “tweaks” is changing the Queue Depth <i>(QD)</i>. But most forget …

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Security