Server Manager unable to show CSVs
server 2012r2 Failover Cluster HP SAN 2x Nodesnode b suddenly started getting source 'disk' id '153' logged in eventvwrnode a is functioning ok and all VMs are migrated to it.disk manager reported one...
View ArticlePerformance AlwaysOn SQL 2014 in synchronous mode
Hello,I have found a great article about AlwaysOn performance in synchronous...
View ArticleReplica Broker Failed state
hi guys,First off, some info:I'm helping set-up a DR site for a client and they'll be using Hyper-V Replica. The DR servers are up and running in a cluster and all roles have been configured including...
View ArticleExchange 2013 (On 2008 Server R2) - Cluster issues when quorum lost
9 Exchange 2013 mailbox servers all running on Windows 2008 Server R2. All part of the same DAG (so just one cluster).Inadvertently, powerer off 5 of these mailbox servers - bad idea. According to my...
View Articleaccess is denied
Hello,I have a win2012 r2 machine.When I try to create a Failover cluster , i see 'access is denied'the validate configuration wizard passed .I am admin via a JIT Elevated access.Do i require domain...
View ArticleMicrosoft Cluster failover policy recommendation - Maximum failures in...
Can someone give a clear explanation as to why in 2008 R2 server the recommended setting for "Maximum failures in specific period" is 1 in 6 hours.We encountered a problem in a two node cluster.A...
View ArticleThe service principal name (SPN) was not found in Active Directory. Help me...
I am having trouble with getting my 2012 Hyper-V HA Cluster at 100%. I have 3 nodes and it complains about the MS KB patches not matching across the 3, somethings that get installed have no "uninstall"...
View ArticleStorage Spaces Direct Windows Server 2016 Lab Testing physical disks issue
alright folks , first of all thanks for the help if i get a answer.we are always on the look to test out some new stuff and this time we want to test Storage Spaces Direct,in case it proves to be good...
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2012 R2 hyper V cluster - VMs not able to move to another node
hello friends...i recently created a 2 node cluster and whenever i am running the config / validation wizard i am not getting any error ... but every few hours .. my VMs on this go down..my switches...
View ArticleFailed Server 2016 Rolling cluster upgrade.
Hi,I have a 2 node Hyper-V server 2012 R2 cluster. I would like to upgrade the cluster to 2016 to take advantage of the new nested virtualisation feature. I have been following this guide...
View ArticleNLB cluster on Windows 2016
Hello! I'm trying to setup NLB cluster from Windows 2016 Virtual machines, but after creating cluster i lost connectivity to (from) virtual machine, and of course NLB cluster is not working. NLB...
View Articlemigrating 2008 r2 hyperV cluster to 2012 r2 hyperV cluster
hello friends i know this has been discussed a lot ... but as i am running a production system with loads of clients on it with critical data i will take this as isolated setup.guys i need your help...
View ArticleFailover cluster cannot upgrade functional level
Attempting to do a rolling upgrade of a Windows Server 2012 R2 cluster to 2016. Our first test cluster upgraded fine. This one is failing. I've highlighted to lines from get-cluster that are...
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Resolve DNS command returns different IP addresses
Hi folks, I have a failover cluster with two nodes. Both machines are ESXi VMs with two network adapters: first one public and the second one is private. Settings of private network: Settings of public...
View ArticleMoving CSVs from 2008 R2 to 2012 R2 cluster?
Hello,we have an old 2008 R2 H-V cluster with data on CSVs (on iSCSI SAN) and we need to move them to 2012 R2 cluster.I'm aware of other migration paths and supported/unsupported scenarios, but my...
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MPIO and CSVs
To start off i noticed that I am not getting any traffic over my redundant ISCI path to the EMC SAN. I have worked with HA clusters but this is a first with Hyper-V clusters. I am fairly new to this...
View ArticleBest Way to Create Two Node Cluster if 1 Node Already Has VM's
Hello Everyone,We have 2 HP ProLiant DL380 Gen 9 servers. I'm in the process of upgrading the servers from Server 2012 R2 Datacenter to Windows Server 2016 Datacenter. Each server has 20) 900 GB SAS...
View ArticleAdd node as mult-site
Hello,I have a two node Windows Cluster setup for the purpose of SQL AlwaysOn which works fine. I have a single network card on each server which handles all communication, we understand the risks and...
View ArticleClient network goes down after a WAN lost on a multisubnet cluster
I created a 2 nodes Windows 2012 R2 cluster for SQL AlwaysOn + file share witness. Running on Esxi 5.5 update 2. Each node is hosted on a different host. Each node has two NICs, one for client...
View ArticleClusters, odd, even, active, passive, san
what is active, passive clustering ? if any other type of cluster available ? means one mode host or node needs to offline means one node will be active at a time?how to setup cluster for print , file...
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