07 décembre 2012

Release: Virsto for vSphere 2.0

Virsto, the Californian company founded 2007, provider of storage hypervisor software for virtual machines announced yesterday December 4 the release the new version of Virsto for vSphere 2.0 The virtual storage solution now integrates support for both Citrix XenDesktop and VMware View, improved high availability (HA) capabilities and workflow optimisations. New features in Virsto for vSphere 2.0: Data center ready: Virsto for vSphere 2.0 offers a series of enhancements providing improved support for tier 1 applications with... [Lire la suite]
Posté par jcdemarque à 18:21 - - Permalien [#]
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23 novembre 2012

Step-by-Step: Scoping out the NEW DHCP Failover in Windows Server 2012 - 31 Days of Favorite Features ( Part 28 of 31 )

This article is Part 28 in a series of articles on the "Top 31 Favorite Features in Windows Server 2012" with my fellow IT Pro Technical Evangelists.  Be sure to follow them on Twitter and check out their blogs this month for the other parts of this series: Kevin Remde - Read Kevin's Full of I.T. blog Brian Lewis - Read Brian's My Thoughts on IT blog Matt Hester - Read Matt Hester's WebLog The Dynamic Host Configuration Protocol ( DHCP ) is a core network service in most IT shops... [Lire la suite]
Posté par jcdemarque à 15:40 - - Permalien [#]
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15 octobre 2012

Managing High Availability with the EAC

You may have seen the introduction to the new Exchange Administration Center (EAC). The EAC is a unified Web-based portal for both on-premises and online Exchange deployments. Managing high availability (HA) is one of the key scenarios for on-premises customers, and the EAC delivers a brand new experience of managing HA. With EAC, the HA management tools are put together with a new modern look and feel. Managing Exchange HA involves different operations like database switchovers, server switchovers, adding database copies, reseeding,... [Lire la suite]
Posté par jcdemarque à 17:30 - - Permalien [#]
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26 octobre 2010

HA, the missing link…

One of the things that has always been missing from VMware’s High Availability solution stack is application awareness. As I explained in one of my earlier posts this is something that VMware is actively working on. Instead of creating a full App clustering level VMware decided to extend “VM Monitoring” and created an API to enable App level resiliency. At VMworld I briefly sat down with Tom Stephens who is part of the Technical Marketing Team as an expert on HA and of course the recently introduced App Monitoring. Tom explained me... [Lire la suite]
Posté par jcdemarque à 07:39 - - Permalien [#]
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26 octobre 2010

Did you know? All hosts failed…

Today I received a very valid question around a full cluster failure. What happens when all the hosts in a cluster go down and at some point return? Will the VMs be restarted and what do I need to have in place to ensure they will? It seems to be an urban myth that you need to use “auto-start” for a full cluster failure. But as you might have noticed that won’t work when HA is enabled. So what will? VMware HA Is it really that simple? Yes it is! When a full cluster fails and nodes start powering up HA will restart the VMs. As... [Lire la suite]
Posté par jcdemarque à 07:38 - - Permalien [#]
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18 mars 2010

Exchange 2010 RTM High Availability Load Balancing Options

With Exchange 2010 comes many advantages in the HA realm.  One of them is the ability to connect to the Client Access Server for RPC.  This means, when a Mailbox Server does a *over (failover or a switchover), the user is still connected to their RPC Endpoint.  You can also create a Client Access Array which load balances your RPC Endpoint on your CAS Servers.  Lots of information on the RPC Client Access Server here and here.  So what options are available for load balancing this new RPC Client Access Array... [Lire la suite]
Posté par jcdemarque à 20:35 - - Permalien [#]
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16 juin 2009

Video: High Availability in Exchange Server 2010 - Part 4

In Part 1 of my video blogcast series on High Availability in Exchange Server 2010, I introduced you to the concept of database mobility, and the features known as database availability groups (DAGs) and mailbox database copies. In Part 2, I showed you how to create a DAG and how to add Mailbox servers to a DAG. In Part 3, I showed you how to add a mailbox database copy, and I demonstrated Get-MailboxDatabaseCopyStatus and Test-ReplicationHealth. In Part 4, the final part of this blogcast series, I perform a database... [Lire la suite]
Posté par jcdemarque à 09:38 - - Permalien [#]
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04 juin 2009

Video: High Availability in Exchange Server 2010 - Part 3

In Part 1 of my video blogcast series on High Availability in Exchange Server 2010, I introduced you to the concept of database mobility, and the features known as database availability groups (DAGs) and mailbox database copies. In Part 2, I showed you how to create a DAG and how to add Mailbox servers to a DAG. In Part 3, I show you how to add a mailbox database copy, and I demonstrate Get-MailboxDatabaseCopyStatus and Test-ReplicationHealth. Please download the video and watch it full-screen.  Part 3 is just under 3... [Lire la suite]
Posté par jcdemarque à 12:17 - - Permalien [#]
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25 mai 2009

vSphere HA Isolation Response

As of VMware vCenter 2.5 Update 2 the HA default isolation response changed from “Power Off” to “Leave powered on”. A lot of people liked this new default setting because it would lower the chances of downtime due to a “false positive”. I’ve never been a fan though, I just don’t like using degraded hardware or a degraded ESX host for that matter. Those that did like the change should take notice of the fact that with vSphere comes a new default isolation response: Note that this change is only for new clusters, if you... [Lire la suite]
Posté par jcdemarque à 16:06 - - Permalien [#]
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24 mai 2009

Video: High Availability in Exchange Server 2010 - Part 2

In Part 1 of my video blogcast series on High Availability in Exchange Server 2010, I introduced you to the concept of database mobility, and the features known as database availability groups (DAGs) and mailbox database copies. In part 2, I show you how to create a DAG and how to add Mailbox servers to a DAG. Please download the video and watch it full-screen. As with Part 1, Part 2 is a little more than 5 minutes. Click on the video thumbnail below to go to the video. There is a Download link where you can download the video... [Lire la suite]
Posté par jcdemarque à 22:25 - - Permalien [#]
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