NLB address not reachable from outside
Hi experts, I experience the following problem - I have a Windows NLB cluster of 3 servers, however I'm not able to reach or ping the virtual address from the outside. I can ping it from any of the...
View ArticleServer 2012 R2 Hyper-V Cluster - Losing connectivity to vLANs
Hi Everybody,I am experiencing a strange issue with a Server 2012 R2 Hypervisor. There are two physical NICs teamed (one from on-board and one from expansion board), this team is assigned to a hyper-v...
View ArticleNLB and external multicast traffic
Hi,I have an NLB cluster with 2 hosts and 1 VIP. The hosts dedicated IP addresses are 192.168.20.22 and 192.168.20.25, respectively. NLB is configured in multicast mode. The NLB ports are 80 and 443 -...
View ArticleHyper-V host registration in Active Directory.
Hi everybody,I have question regarding hyper-v nodes registration in active directory. As in the original TechNet documentation Microsoft (https://technet.microsoft.com/en-us/library/dn550728.aspx)...
View ArticleCSV / MPIO / iSCSI: One of 2 LUNs ist lost when cutting one of 2 network...
SituationHyper-V host with 2 NICs connecting the host with 2 controllers on the SAN.There are 2 LUNs on the SAN that are both published to the host. Normal Operation with both cables to the NICs...
View Article2012 R2 CAU keeps installing the same update.
I am trying to CAU a 12 node cluster with WIN2012R2.CAU keeps installing the same update on same node for several KB2461484.I tried several times to update the same node through CAU and windows Update...
View ArticleEnable Shadow Copies for Shared Folders in a Failover Cluster (2012 R2)
I cannot find a reference on how to Enable Shadow Copies for Shared Folders in a Failover Clusterusing separate disks for Data and Shadow Copies, using Windows Server 2012 R2. I found an article for...
View ArticleAlwaysOn Cluster reboot due to file share witness unavailability
Hi Team,Anyone came across this scenario in AlwaysOn Availability Group (two node), file share witness times out and RHS terminate and cause the cluster node to reboot. File share witness is for...
View ArticleOracle 11g client on windows server 2008 r2 failed over cluster enviornment
Hi All,We are planning to install Oracle 11g client (64) on Windows Server 2008 R2 two node failed over cluster.Need expert help to guide us how to perform installation on windows cluster with out any...
View ArticleFile copy speeds to CSV vs non-CSV
I'm working on bringing up a 2012 R2 cluster and doing a basic test. In this cluster, I have two adapters for iSCSI traffic, one for network traffic, and one for the heartbeat. Cluster node has all...
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addapters have IP addresses on the same subnet.
On Windows 2012 I used this command to define two vm adapters:add-vmnetworkadapter -managementos -vmnetworkadaptername "Cluster" -switchname "Lan Team Virtual Switch" add-vmnetworkadapter -managementos...
View Article2012r2 cluster create err
i select a exist vhd on CSV and attach a vm, but it can not create show this errorThere was a failure configuring the virtual machine role for 'test'. There was an error retrieving the unique...
View Articlehow to enable the CSV vss shadow copy
2012r2 cluster, i found witness disk properties i can enable shadow copy, but when i switch the CSV properties disk i can not see this option, does the cluster CSV support the shadow ?
View ArticleDNS not regiserted in 2012r2 cluster
In my clsuter i found the 1196 error every 15 minutes, Cluster network name resource 'Cluster Name' failed registration of one or more associated DNS name(s) for the following reason: DNS server...
View ArticleEvent Logs of VMs Migration in Hyper-V Cluster
Hello All,We're running Failover Cluster of Win Server 2012 R2 Hyper-V hosts. If any host gets down unexpectedly (due to any reason power/bugcheck/hardware failure or what so ever), then the VMs on...
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Failover Cluster - Hyperv Networking
Hi All I am in the middle of a private cloud project and i am having a few issues with my Fail over Clustering I ended up creating my fail over which ran successfully but later complained...
View Articletrouble authenticating to the domain for Live Migration
HiI have a scenario in failover clustering which I am unsure on how to work around.Our setup is a 2 node cluster, one node in building A, the other in building B.In each building we have the following...
View ArticleRRAS Cluster - HNV Gateway - Failover of Routingdomains error
We are running several RRAS Clusters on 2012 R2 to provice Hyper-v Network Virtualization Gateway service to many vmnetworks. (RRAS is installed in multi-tenancy mode)Sometimes it happens that the RRAS...
View Article2012 NLB Best Practice (Single vs Multiple NICs)?
Our environment has used an NLB configuration with two NICs for years. One NIC for the host itself and one for the NLB. We have also been running the NLB in multicast mode. Starting with 2008, we...
View ArticleFail-over Cluster Server
When i opened the Failover cluster manager and in Roles i see SQL server Failed and in the bottow window it shows SQKSERVER offline What should i do, Please help me.
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