License-Free Virtualization for Your Enterprise
- 405 Topics
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Cisco Unified Communications on Nutanix
Next Community, Nutanix has developed Best Practices for designing and deploying Cisco Unified Communications on Nutanix. I wanted to share those resources with you here in the community and use this space to talk about the subject. Best Practices Guide with example deployments:[url=http://go.nutanix.com/bpg-cisco-unified-communications.html]http://go.nutanix.com/bpg-cisco-unified-communications.html[/url] Personal blog posts:[url=http://bbbburns.com/blog/2014/12/nutanix-and-uc-part-1-introduction-and-overview/]http://bbbburns.com/blog/2014/12/nutanix-and-uc-part-1-introduction-and-overview/[/url][url=http://bbbburns.com/blog/2015/01/nutanix-and-uc-part-2-cisco-virtualization-requirements/]http://bbbburns.com/blog/2015/01/nutanix-and-uc-part-2-cisco-virtualization-requirements/[/url][url=http://bbbburns.com/blog/2015/01/nutanix-and-uc-part-3-cisco-uc-on-nutanix/]http://bbbburns.com/blog/2015/01/nutanix-and-uc-part-3-cisco-uc-on-nutanix/[/url][url=http://bbbburns.com/blog/2015/02/
Scripts for Nutanix SQL Server Provisioning with VAAI
In addition to the video I recorded regarding SQL Server Provisioning with VAAI I've written an article tonight including the scripts I used to clone the VM's, tune the network, and the RunOnce script that ties it all together. I hope this is helpful. [url=http://longwhiteclouds.com/2015/01/27/nutanix-sql-server-db-vaai-clone-performance/]http://longwhiteclouds.com/2015/01/27/nutanix-sql-server-db-vaai-clone-performance/[/url]
Nutanix Provisioning SQL Server VM's with VAAI Clones
I'e just published a video demonstrating provisioning multiple SQL VM's in just minutes using VAAI Clones on the Nutanix platform. The SQL DB VM's are 435GB in size, but due to VAAI the new clones don't use any additional stroage capacity initially.Nutanix Provisioning SQL Server VM's with VAAI Clones
Exchange 2010 on Nutanix
We were one of the first guinea pigs to host Exchange 2010 on Nutanix. our cluster consists of a 3451 and a 6220. We have 1 exchange server tied to each of the 3451 nodes, 4 in total. Each server is configured with 4 2 TB databases. 2 active, 2 passive. We noticed recently as we migrated a majority of our users to the new environment that we are getting alarms that we are hitting a threshold of disk space per host. Not sure what we're missing here. [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/299i4144063A719D65F2.png[/img]
Work load on cloud
Hi, I have a curios doubt. I read about cloud connect and summarized that it is mainly for backing up the data! And when I connect to a public cloud AWS, a CVM will automatically be created on that platform right! So can I seamlessly offload some of the production workload onto the cloud as well or is it exclusively for backup and restore ? Best, Narayan
Turbo Charge Oracle Database 11g Performance
My team and I was helping a customer troubleshoot a performance problem with their Oracle 11g R2 (220.127.116.11) database today and we noticed that it was taking between 90 seconds and 120 seconds to complete a checkpoint. Anyone who knows anything about Oracle knows that this is an eternity for a database to wait while switching online redo log files and continuing to process transactions. This was causing a lot of performance dissatisfaction for the customer, which is understandable. But it didn’t take long to figure out what the problem was and fix it. Literally changing a single parameter in the database and restarting the instance turbo charged performance by over 10X. First lets cover off some of the symptoms of this problem and give you some background before I give you the parameter we used to address the performance issue. Also note that this had nothing to do with the underlying infrastructure, it was purely a database level setting. This problem wouldn’t happen in Oracle 12c.
Does Nutanix Support SQL Cluster on ESXI5.5?
Hi All , As you know that to build a SQL cluster on vmware vsphere 5.5 I need to create RDM disk for both cluster's nodes with physical compitilty , and this will eliminate the vsphere from running vmotion (need to shutdown the host to migrate )since it is not supported. My question is : does nutanix support create a SQL cluster ? and how they will replace the RDM (the physical LUN)? And for licensing :Does nutanix base license support building critical application clusters for free? Regards,
Redundant Windows based file server on Hyper-V
Hey there We have a Windows Azure Pack environment deployed on a Nutanix Hyper-V based infrastructure. The infrastructure is build with high availability in mind: [list] [*]Redundant Virtual Machine Manager configuration [*]Redundant SQL Server configuration (using SQL Server AlwaysOn)[/list]But we are currently facing an issue setting up a redundant VMM Library Share. Microsoft does not allow using a redundant VMM installation as the Library Server. Instead they recommend to setup a Scale-Out File Server infrastructure as the Library Server and then add your Library Share to it. However, to my current understanding, it is not possible to setup a Cluster Shared Volume on Nutanix Hyper-V - which is a requirement for a Scale-Out File Server. What are the design recommendations from Nutanix in this matter?
VMware Storage DRS (SDRS)
Storage DRS is a feature of vSphere 5.0 onwards which aims to reduce the complexity of managing storage capacity and performance for virtual machines running on traditional shared storage. SDRS helps simplify management of Datastores (LUNs / NFS Mounts) by analyzing the available datastores capacity and placing new virtual machines in datastores with the required available capacity. This is called "Initial Placement". SDRS also allows administrators to create rules ([b]"Affinity" & "Anti-Affinity")[/b] to ensure specific what VMs should be kept together or apart for performance / capacity reasons and finally, monitor I/O metrics and relocate VMs to different datastores where contention or capacity constraints exist. As it is recommended to have one Large NFS Datastore in a Nutanix environment, the issue of initial placement (which SDRS helps resolve) is natively eliminated as all Virtual machines, regardless of performance or capacity requirements can and should be placed into one
VMware vNetworking NIC Teaming & Failover Recommendation
The following shows the available Load Balacing options currently available in vSphere 5.5 along with the recommended configuration for Nutanix environments for both Virtual Distributed Switches (VDS) and Virtual Standard Switches (VSS). [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/270i5774D0C1DA9085B5.jpg[/img] [b]NIC Teaming & Failover Recommendation[/b] [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/268i896F57C800D4F81D.jpg[/img]
VMware Network I/O Control (NIOC)
Network I/O control is a feature available since vSphere 4.1 with the Virtual Distributed Switch (VDS) which uses Network resource pools determine the bandwidth that different network traffic types are given. When network I/O control is enabled, distributed switch traffic is divided into Customer Network Resource pools and/or the following predefined network resource pools: Fault Tolerance traffic, iSCSI traffic, vMotion traffic, management traffic, vSphere Replication (VR) traffic, NFS traffic, and virtual machine traffic. From vSphere 5.0 onwards, you can also create custom network resource pools for virtual machine traffic. You can control the bandwidth each network resource pool is given by setting the physical adapter shares and host limit for each network resource pool. The physical adapter shares assigned to a network resource pool determine what share of the total available bandwidth will be guaranteed to the traffic associated with that network resource pool in the event o
Best Practices for VMware Distributed Resource Scheduler (DRS)
The following tables show the recommended configuration of VMware Distributed Resource Scheduler (DRS). [b]DRS (General)[/b] [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/258iC0B64EA0AB05913D.jpg[/img] [b]DRS Rules[/b] [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/260iC36A3829678786A2.jpg[/img] [b]DRS Distributed Power Management (DPM)[/b] [b][img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/262i30C4C439D67776FB.jpg[/img][/b]
Best practices for VMware vSphere HA
The following tables show the recommended configuration of VMware High Availability. [b]Admission Control[/b] [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/254iFA487A2BE0AAFA9C.jpg[/img] The below table shows the percentage values required for N+1 through N+4 availability for vSphere clusters of up to 32 (The Current maximum cluster size for vSphere 5.5). The green highlighted values represent recommended values based on the level of availability. [img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/252i8C02D4957E9FFBB5.jpg[/img] In Summary the recommendations are: [list] [*]Cluster of =N+1 redundancy [*]Cluster of >8 & =N+2 redundancy [*]Cluster of >16 & =N+3 redundancy [*]Cluster of >24 & =N+4 redundancy[/list] [b]Host Isolation Response and Advanced Settings[/b] [b][img]https://d1qy7qyune0vt1.cloudfront.net/nutanix-us/attachment/256i1A83A331F6F3317D.jpg[/img][/b]
Hello mates, We have 2x NX3350 and Arista switch which handle roughly 100 VM. Workloads are: 20x VM with heavy disk workload which are used mainly for reporting and analysis. R/W ratio is roughly 50/50. They created 20K IOPS workload when they lived on SAN storage with RAID10 and tiny flash tier and average latency was always below 5 ms. 10x VM which are used for application virtualization 70x VM which are use for desktop virtualization. Now, when we migrated to Nutanix, we have only 4K cluster IOPS and 20 ms latency which does not seems to be very good for us. Trying to resolve the issue, we enabled inline compression and increased CVM memory up to 20GB. We also tried to change tier sequential write priority. Unfortunately, this does not help. ncc, cluster status and prism health claim that everything is ok. Before we migrated our environment, we've run diagnostic VM and the results was roughly 100K IOPS for read. Here is the current configuration of cluster:NOS Version: 4
fdm and pynfs
When we want to reconfigure for HA, installation of the fdm always fails with the following error: syslog.log:2014-09-10T07:34:33Z fdm-installer: VIB Nutanix_bootbank_pynfs_5.0.0-0.0.1 violates extensibility rule checks: [u'(line 22: col 0) Element vib failed to validate content'] We need to remove pynfs, reconfigure for HA and then we can re-install pynfs again. Is there a workaround in stead of keep on removing and reinstalling pynfs? Regards John Grinwis
Can someone from Nutanix comment on this security issue with libvirt?
I know this is a Mandriva notice but I assume CentOS is also affected. _______________________________________________________________________ Mandriva Linux Security Advisory MDVSA-2014:097 http://www.mandriva.com/en/support/security/ _______________________________________________________________________ Package : libvirt Date : May 16, 2014 Affected: Business Server 1.0 _______________________________________________________________________ Problem Description: Multiple vulnerabilities has been discovered and corrected in libvirt: The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container; (2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a symlink attack on /dev in the container; and cause a denial of service (shutdown or reboot host OS) via the (3) virDomainShutdown or (4) virDomainReboot API and a symlink attack on /
Oracle Licensing and Support
If you're interested in running Oracle on the Nutanix platform then you should check out my latest blog article titled Oracle Licensing and Support on Nutanix Virtual Computing Platform - http://longwhiteclouds.com/2014/05/11/oracle-licensing-and-support-on-nutanix-virtual-computing-platform/. We are in the process of publishing a Tech Note on Oracle for Nutanix and also a Best Practice Guide. These should be available on our web site in the next few weeks.
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