HA and slot size.
I'm reading over the vCenter 5.1 availability guide and I'm a bit confused on where slot sizes come into play. There are 3 options for HA: Host Failures Cluster Tolerates Percent of Cluster Resources...
View ArticleIsolation revealed :)
Hi,just wanted to share something that might help someone get a hold of HA intricacies... I've always liked to analyze and think about distributed algos, and HA is a nice piece.Cluster in general have...
View ArticlevSphere HA unsuccessfully failed over. Operation is not allowed in current...
Hello, I am testing vSphere HA with two ESXi hosts in my lab. I have one VM on each ESXi host and when I try to initiate HA by shutting down the switch port connection to one of the hosts, the vSphere...
View ArticleHA admisstion control
Hi, Need your help in understanding this. I have cluster running 10 host with esxi5.0.With HA and DRS enabled in shared storage. What happens if all the 9 host fails .Will all the vms poweron on the...
View ArticleHA, Host Down, not restart VM on another node
Hi. ESXi5.0 last night one of my host NIC card failed , and i have my management and Virtual machine on a single nic. However our storage was still up HA isolation response was set to "leave...
View ArticleHA Failover Capacity Levels!
Hi All,Please review my cluster status,VMware vSphere Version=5.0No.of Nodes in the cluster=4Each Node configuration=24GB RAM, 12*2.40GHz CPUTotal Cluster Memory=95.96GBTotal Cluster CPU=115...
View ArticleFT - image VM location
had an interesting question posed to me today. If we implement FT on a VM, can we direct the secondary "image" vm to exist on a specific Host vs letting the FT decide which available host to place it...
View Article1 ios in progress for...
Last week I was trying to determine the root cause of a storage connection issue that I had and came across the following message in the fdm.log. The message repeated every second until the host was...
View ArticleVM High Availibility Question: Virtual IPs?
When building HA Clusters using other software solutions, I would create two nodes with their own static IP addresses, and the cluster would share a Virtual IP that would only be used when the active...
View ArticleConfigure a second ESX host
Hello Expert: Currently we have one ESX 4 host that is running at our office and I would like to configure a second ESX host to act like fail over if the first one offline.Can you someone guide me on...
View ArticleClik here to view.
Host not responding ESXi 5.5 and HA messages
hi guys Lately I've been troubleshooting an issue with ping lost for my ESXi Servers. Network people tested all and they say is not networking.These two servers are in a blade center - ibm - and they...
View ArticleHA Admission Control - Power on a VM with no available slots??
Hi Everyone, Is it possible that Admission control would allow a VM to be powered on when there are no slots available? I am not talking about HA initiating a failover, but manually powering on a VM...
View ArticleMicrosoft network load balancer support on Microsoft Windows 2012
Hi,Understand that as of now, Microsoft network load balancer is only supported in the below Windows version. Microsoft Windows 2012 is not in the supported list yet....
View ArticleMaster/Slave Concept on vSphere HA
Hi All, From what I've heard, there are certain factors that made a vSphere host elected as a master host. So, my question is: "Can we override this vSphere HA state? Or, is there a way to manually...
View ArticleWhich options for basic fault recovery with 2 hosts and only local storage
Situation:- Customer IT skills very limited. During night those skills come close to nothing. So an automated solution is very important. - VM needed to customer operation, but they can be shutdown for...
View ArticleHA not working in cluster
Hi, We have a cluster with HA and DRS enabled. We have been having host disconnects and HA did not restart VMs on another host in the cluster. Following are the details of our env and cluster....
View ArticleHA (no FT!) optimization with 3 ESXi hosts and one SAN
Hi there!I'm completely new in the VM materies since one week, but read already a lot of stuff, including a book, and accomplished to build up the first cluster.Now I've just a few "optimization"...
View ArticleMove .vSphere-HA directory?
I am running vCenter Server 4.1. I have 90 Datastores I need to delete a datastore, but it contains the folder, .vSphere-HA and will not allow me to delete either the folder or the datastore. I have...
View Articlezero time data loss
we have 11 servers have 11 CPU all have ESXi free edition total data size 10 TB Q1-To make Automatic Disaster recovery on same site. with zero time data loss, can we do with out change current...
View Articlereplication and HA
we have 10 servers have 10 CPU all have ESXi free edition total data size 10 TB Q1-we want to make Disaster recovery on Remote site. with one hour old data loss, can we do with out change current...
View Article