This is a cross post from my Metis IT blogpost, which you can find here.
This year, The anual NLVMUG UserCon was on March 17, 2016 in the city of Den Bosch. Last year was my first time at the NLVMUG and this year I was one of the speakers. Together with my colleague Ronald van Vugt we presented “De kracht van de blueprint”, translated to English “The power of the blueprint”. Our presentation was scheduled at 11.30 right after the first coffee break.
The day started with a keynote presentation of Kit Colbert from VMware about Cloud-Native Apps. His presentation began with an example of John Deere, the tractor company, who formerly sold only tractors but now also collects and analyze data from all their equipment. With this data analitics they can advise the farmer about the way they can optimize their equipment and land. Companies like John Deere need a co
mpletely different kind of apps, architecture
and how they develop and maintain applications. In his presentation he showed how VMware can support these new apps and how the VMware platform can support this. For these new apps VMware has developed the vSphere Integrated Containter architecture and the VMware Photon platform.
After the keynote it was time for us to do some last preparations for the presentation. We checked the VPN connection for the live demo, all demo steps and the presentation script. In the coffee break, just before our presentation we had enough time to setup our equipment and test the microphone. Then it was time for the presentation!
The main subject of our presentation was vRealize Automation and the way you can automate your application environment. In the first part of the
presentation we introduced the product and the functionalities. After the background information it was time to start with our live demo. In the demo we showed how you can automate the deployment of a two tier WordPress application with vRA and VMware NSX. Live on stage we composed the application environment, with all network services, relations and policies. After the demo there was some time for questions. If you are interested in our presentation and demo you can download the presentation including screenshots of the demo steps here.
In the afternoon there was a second keynote of Jay Marshall from Google about the Google Cloud Platform. He showed how Google has grown from search engine to a big player in the cloud market. He also showed the
partnership between VMware and Google to create a hybrid cloud. After this keynote I attended to some other presentations about vSAN and vRealize Automation and vRealize Orchestration. After the last presentation it was time for the reception and the prize drawing of the sponsors. After the price drawing the day was over.
I look back at a great event and an awesome new presentation experience. It was fun to be on stage to share our knowledge at the biggest VMUG in the world. I want to thanks the NLVMUG organization for all their hard work and I hope to meet you next year.
Attachment: NLVMUG 2016 handouts PDF
This is a cross post from my Metis IT blogpost, which you can find here.
Last week VMware released a new version of vRealize Automation (vRA), version 7.0.1. In this version most of the version 7.0.0 bugs and issues are resolved. In the release notes you can find the list of all resolved issues. In this blog I will guide you through the upgrade process.
It is possible to upgrade to this new version from any supported vRealize Automation 6.2.x version and the latest 7.0 version. In this blog I will focus on an upgrade from version 7.0.0 to version 7.0.1. If you still use an earlier version of vRA you have to upgrade frist to version 6.2.x. The environment we will upgrade is a minimum deployment based on version 7.0.0.
The following steps are required for a successful upgrade of vRealize Automation.
- Backup your current installation
- Shut down vRealize Automation Windows services on your IAAS server
- Configure hardware resources
- Download and install upgrades to the vRA appliance
- Download and install updates for IAAS
- Post Upgrade Tasks
Backup your current installation
Before you start the upgrade it is important to backup some components of the existing installation. If something goes wrong you can always go back to the current version.
Configuration file backup
First start with a backup of the vRA configuration files. This file can be backupped with the following steps:
- Login with ssh on the vRA appliance
- Make a copy of the following directories:
First create a directory backup.
Copy now all directories to this folder:
cp -R /etc/vcac/ /etc/backupconf/
Perform these steps for each folder.
Make a SQL backup of the vRA IAAS database. For the integrated postgres database it is enough to snapshot the complete vRA appliance.
- Login to the database server
- Open the MSSQL Management Console and login
- Click left on the vRA database and choose Tasks and choose Backup Up…
- Choose the location for the backup and click on OK.
- Wait for the completion of the backup.
Screenshots of the tenant configuration and users
If something goes wrong with the upgrade it could be possible that this configuration information is changed. For safety it is recommended to capture this information.
- Login as administrator to the vRA interface
- Make a Screenshot of your tenants
- And the Local Users of the tenant
- And the Administrators
Backup any files you have customized
The vRA upgrade will possibly delete or modify all customized files. If you want to keep this files please backup them. In our environment we don’t use any customized files.
Create snapshot of the IAAS server
To take a snapshot of the IAAS server is the last step in the upgrade process.
- Shutdown the IAAS server and the vRA appliance in the correct order.
- Login to vCenter
- First select the IAAS VM and select shutdown guest. If the shutdown is complete select the vRA appliance and choose again for shutdown guest.
- Right-click on the IAAS VM and select Snapshots and Take Snapshot. Fill in the name of the snapshot and click on OK.
- Power On the IAAS VM
Disable the IAAS services
- Login on the IAAS server, open msc and stop the following services:
- All VMware vCloud Automation agents
- All VMware DEM workers
- All DEM orchestrator
- VMware vCloud Automation Center Service
Configure hardware resources of the vRA appliance
For the upgrade it is necessary to extend the existing disks of the vRA appliance. But before we do this, create a copy of the existing vRA appliance.
- Right-click on the vRA appliance, select Clone and Clone to Virtual Machine
- Give the VM a unique name and select the resources for the new VM and click on Finish.
- Wait for completion.
- Right-click on the original VM and select Edit Settings.
- Extend the first disks (1) to 50GB and click OK.
- Create a snapshot of the VM. Select the VM, click on Snapshots and click Take Snapshot.
- Wait for the snapshot.
- Power on the vRA VM.
- Wait for the machine to start
- SSH to the vRA VM and login with the root
- Execute the following commands to stop all vRA services:
Service vcac-server stop
Service vco-server stop
Service vpostgres stop
- Extend the Linux file system with the following commands:
Unmount swap table:
Delete existing partitions and create a 44GB root and 6GB swap partition. This command and the next command return an error about the kernel that is still active at this point. After a reboot at step 13 all changes will be active:
(echo d; echo 2; echo d; echo 1; echo n; echo p; echo ; echo ; echo ‘+44G’; echo n; echo p; echo ; echo ; echo ; echo w; echo p; echo q) | fdisk /dev/sda
Change the swap partition type:
(echo t; echo 2; echo 82; echo w; echo p; echo q) | fdisk /dev/sda
Set disk 1 bootable:
(echo a; echo 1; echo w; echo p; echo q) | fdisk /dev/sda
Register partition changes and format the new swap partition:
Mount the swap partition:
- Reboot the vRA partition
- When the appliance is started again login with SSH and resize the partiation table:
- Check the resize with command df -h
Install the vRA update
- Login on the management interface: https://vRAhostname:5480
- Click on the Services tab and check the services. All services should be registered except the iaas-service.
If everything is checked, click on the update tab. If not all services are running and you are using a proxy server, check this Vmware article: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2144067
- Click on Check Updates. The new update will be displayed.
- Click now on Install update and Click OK.
- The follow the installation you can check the following log files: /opt/vmware/var/log/vami/updatecli.log
The most useful information can be found in the vami.log and updatecli.log. In these log files you can see the download progress and information about the upgrade status.
Use tail –f /opt/vmware/var/log/vami/* to show all log files
- Wait untill the update is finished.
- If the upgrade is finished, reboot the appliance. Click on the System tab and click on
Upgrading the IAAS server components
The next step in this process is to upgrade the IAAS components. The IAAS installer will also upgrade the MSSQL database. In earlier upgrade processes it was needed to separately upgrade the database. To start the IAAS upgrade, follow the following steps:
- Open your favorite webbrowser and go to: https://vRAhostname:5480/installer
- Click the IAAS installer Save the prompted file. (Do not change the filename!)
- Open the installer and follow the wizard.
- Accept the license agreement and click on Next.
- Provide the Appliance Login Information. Click on Next.
- Choose for Upgrade. Click on Next.
- Provide the correct Service Account for the component services and the authentication information of the SQL server. Click on Next.
- Accept the certificate of the SSO Default Tenant and provide the SSO Administrator Credentials. Click on Next.
- Click now on Upgrade to start the upgrade.
- Click on Next and finish to complete the IAAS upgrade.
Post upgrade tasks
After the IAAS upgrade first check the correct operation of the vRA appliance. Click on the infrastructure tab and click on endpoint. Verify the endpoint overview is correct. Next try to request a blueprint and check if everything will finish successful.
If everything is correct, the last step is the upgrade of the vRA agents on the OS templates. The new agents also contain some bug fixes. In our environment we use CentOS and Windows Operating Systems. We will first start with the upgrade of the CentOS agent followed by the Windows Agent.
- Convert the CentOS template to a VM and boot the VM.
- Download the prepare_vra_template.sh script from the following location: https://vRAhostname.local:5480/service/software/download/prepare_vra_template.sh
- Allow execution of the script with:
chmod +x prepare_vra_template.sh
- Execute the script: ./prepare_vra_template.sh.
- Follow the wizard and provide the correct information. I choose for vSphere, no certificate check and the install Java.
- Wait for completion and shutdown the VM.
- Convert the VM back to a template.
For the upgrade of the Windows Agent we will use the script made by Gary Coburn. He developed a script that will install all the needed components and the vRA agent on Windows. Thanks to my colleague Ronald van Vugt for this modification on this script because of newer java version. The original script is based on vRA version 7.0.0 which included version jre-1.8.0-66. The java version included in version 7.0.1 is newer, so a modification to the script is required.
- Download the original script from here or here. And open the script and search for the following line:
$url=”https://” + $vRAurl + “:5480/service/software/download/jre-1.8.0_66-win64.zip”
- This line must be edited to:
$url=”https://” + $vRAurl + “:5480/service/software/download/jre-1.8.0_72-win64.zip”
- If the script is edited run the script with the following parameters:
./prepare_vra_template.ps1 vra-hostname iaas-hostnamePasswordofDarwinUser
- The script will sometimes ask for confirmation.
- Wait till the installation is complete.
- Shutdown the VM and convert it again to a template.
Verify the installation
Now request some of your blueprints to verify the correct operation of the vRA appliance, IAAS server and the guest agents. If everything is OK, then it is time to delete the snapshots of the vRA appliance and IAAS server.
- Select the VM, choose for snapshots and Manage Snapshots
- Delete the snapshot you have made before installation.
- Do this for both VMs
Before executing this upgrade in a production environment it is recommended to plan the upgrade and verify that all dependencies will work after the upgrade. Also plan enough time for this upgrade, so you have the time to check and verify the installation.
This is a cross post from my Metis IT blogpost, which you can find here.
VMware VSAN 6.2
On February 10 VMware announced Virtual SAN version 6.2. A lot of Metis IT customers are asking about the Software Defined Data Center (SDDC) and how products like VSAN fit into this new paradigm. Let’s investigate what VMware VSAN is, and what the value would be to use it, as well as what the new features are in version 6.2
VSAN and Software Defined Storage
In the data storage world, we all know that the growth of data is explosive (to say the least). In the last decade the biggest challenge for most companies was that people just kept making copies of their data and the data of their co-workers. Today we not only have this problem, but storage also has to provide the performance needed for data-analytics and more.
First the key components of Software Defined Storage:
- Abstraction: Abstracting the hardware from the software provides greater flexibility and scalability
- Aggregation: In the end it shouldn’t matter what storage solution you use, but it should be managed through only one interface
- Provisioning: the possibility to provision storage in the most effective and efficient way
- Orchestration: Make use of all of the storage platforms in your environment by orchestration (vVOLS, VSAN)
VSAN and Hyper-Converged Infrastructure
So what about Hyper-Converged Infrastructure (HCI)? Hyper-Converged systems allow the integrated resources (Compute, Network and Storage) to be managed as one entity through a common interface. With Hyper-converged systems the infrastructure can be expanded by adding nodes.
VSAN is Hyper-converged in a pure form. You don’t have to buy a complete stack, and you’re not bound to certain hardware configurations from certain vendors. Of course, there is the need for a VSAN HCL to make sure you reach the full potential of VSAN.
VMware VSAN 6.2. new features
With the 6.2 version of VSAN, VMware introduced a couple of really nice and awesome features, some of which are only available on the All-Flash VSAN clusters:
- Data Efficiency (Deduplication and Compression / All-Flash only)
- RAID-5/RAID-6 – Erasure Coding (All-Flash only)
- Quality of Service (QoS Hybrid and All-Flash)
- Software Checksum (Hybrid and All-Flash)
- IPV6 (Hybrid and All-Flash)
- Performance Monitoring Service (Hybrid and All-Flash)
Dedupe and compression happens during de-staging from the caching tier to the capacity tier. You enable “space efficiency” on a cluster level and deduplication happens on a per disk group basis. Larger disk groups will result in a higher deduplication ratio. After the blocks are deduplicated, they are compressed. A significant saving already, but combined with deduplication, the results achieved can be up to 7x space reduction, off course fully dependent on the workload and type of VMs.
New is RAID 5 and RAID 6 support over the network, also known as erasure coding. In this case, RAID-5 requires 4 hosts at a minimum as it uses a 3+1 logic. With 4 hosts, 1 can fail without data loss. This results in a significant reduction of required disk capacity compared to RAID 1. Normally a 20GB disk would require 40GB of disk capacity with FTT=1, but in the case of RAID-5 over the network, the requirement is only ~27GB. RAID 6 is an option if FTT=2 is desired.
Quality of Service
This enables per VMDK IOPS Limits. They can be deployed by Storage Policy-Based Management (SPBM), tying them to existing policy frameworks. Service providers can use this to create differentiated service offerings using the same cluster/pool of storage. Customers wanting to mix diverse workloads will be interested in being able to keep workloads from impacting each other.
Software Checksum will enable customers to detect corruptions that could be caused by faulty hardware/software components, including memory, drives, etc. during the read or write operations. In the case of drives, there are two basic kinds of corruption. The first is “latent sector errors”, which are typically the result of a physical disk drive malfunction. The other type is silent corruption, which can happen without warning (These are typically called silent data corruption). Undetected or completely silent errors could lead to lost or inaccurate data and significant downtime. There is no effective means of detection these errors without end-to-end integrity checking.
Virtual SAN can now support IPv4-only, IPv6-only, and also IPv4/IPv6-both enabled. This addresses requirements for customers moving to IPv6 and, additionally, supports mixed mode for migrations.
Performance Monitoring Service
Performance Monitoring Service allows customers to be able to monitor existing workloads from vCenter. Customers needing access to tactical performance information will not need to go to vRO. Performance monitor includes macro level views (Cluster latency, throughput, IOPS) as well as granular views (per disk, cache hit ratios, per disk group stats) without needing to leave vCenter. The performance monitor allows aggregation of states across the cluster into a “quick view” to see what load and latency look like as well as share that information externally to 3rd party monitoring solutions by API. The Performance monitoring service runs on a distributed database that is stored directly on Virtual SAN.
VMware is making clear that the old way to do storage is obsolete. A company needs the agility, efficiency and scalability that is provided by the best of all worlds. VSAN is one of these, and although it has a short history, it has grown up pretty fast. For more information make sure to read the following blogs, and if you’re looking for a SDDC/SDS/HCI consultant to help you in solving your challenges, make sure to look for Metis IT.
Blogs on VMware VSAN:
VMware to present on VSAN at Storage Field Day 9
I’m really exited to see the VMware VSAN team during Storage Field Day 9, where they will probably dive deep into the new features of VSAN 6.2. It will be an open discussion, where a I’m certain that the delegates will have some awesome questions. Also I would advise you to watch our earlier visit to the VMware VSAN team in Palo Alto about a year ago, at Storage Field Day 7 (Link)