Thursday, December 13. 2012
vCOPS 5.6 Integration in the VMware vSphere Web Client
vCenter Operations Manager 5.6 is the latest release of VMware's integrated operations suite, converging performance, capacity, and configuration management. This new release introduces the following features and enhancements.
This release introduces vCenter Operations Manager integration in the vSphere Web Client. Badges appear in the vSphere Web Client interface when you register an instance of VMware vCenter Operations Manager with a vCenter Server that you want to monitor. Your vCenter Operations Manager license determines which badges and widgets you can see in the vSphere Web Client.
Note: vCenter Operations Manger supports integration in the VMware vSphere Client for vCenter Server 5.1.
Mythbusting - Disk provisioning type doesnβt affect performance
When you perform certain virtual machine management operations, such as creating a virtual disk, cloning a virtual machine to a template, or migrating a virtual machine, you can specify a provisioning policy for the virtual disk file. NFS datastores with Hardware Acceleration and VMFS datastores support the following disk provisioning policies.
- Thick Provision Lazy Zeroed
- Thick Provision Eager Zeroed
- Thin Provision
On NFS datastores that do not support Hardware Acceleration, only thin format is available. You can use Storage vMotion to transform virtual disks from one format to another.
Thick Provision Lazy Zeroed Creates a virtual disk in a default thick format. Space required for the virtual disk is allocated when the virtual disk is created. Data remaining on the physical device is not erased during creation, but is zeroed out on demand at a later time on first write from the virtual machine. Using the default flat virtual disk format does not zero out or eliminate the possibility of recovering deleted files or restoring old data that might be present on this allocated space. You cannot convert a flat disk to a thin disk.
Thick Provision Eager Zeroed is type of thick virtual disk that supports clustering features such as Fault Tolerance. Space required for the virtual disk is allocated at creation time. In contrast to the flat format, the data remaining on the physical device is zeroed out when the virtual disk is created. It might take much longer to create disks in this format than to create other types of disks.
You can use the Thin Provision format to save storage space. For the thin disk, you provision as much datastore space as the disk would require based on the value that you enter for the disk size. However, the thin disk starts small and at first, uses only as much datastore space as the disk needs for its initial operations. Note If a virtual disk supports clustering solutions such as Fault Tolerance, do not make the disk thin. If the thin disk needs more space later, it can grow to its maximum capacity and occupy the entire datastore space provisioned to it. Also, you can manually convert the thin disk into a thick disk.
Monday, December 10. 2012
Mythbusting - VMware HA works out-of-the-box
You can configure vSphere HA to tolerate a specified number of host failures. With the Host Failures Cluster Tolerates admission control policy, vSphere HA ensures that a specified number of hosts can fail and sufficient resources remain in the cluster to fail over all the virtual machines from those hosts.
The Advanced Runtime Info box might display a smaller number of available slots in the cluster than you expect. When you select the Host Failures Cluster Tolerates admission control policy, the Advanced Runtime Info link appears in the vSphere HA section of the cluster's Summary tab in the vSphere Client or as a box in the cluster's Monitor tab of the vSphere Web Client.
This box displays information about the cluster, including the number of slots available to power on additional virtual machines in the cluster. This number might be smaller than expected under certain conditions. Cause Slot size is calculated using the largest reservations plus the memory overhead of any powered on virtual machines in the cluster.
However, vSphere HA admission control considers only the resources on a host that are available for virtual machines. This amount is less than the total amount of physical resources on the host, because there is some overhead. Solution Reduce the virtual machine reservations if possible, use vSphere HA advanced options to reduce the slot size, or use a different admission control policy.
Sunday, December 9. 2012
Video - vCenter Operations Manager Foundation
vCenter Operations Manager Foundation will give you insights and visibility into performance and health of your vSphere infrastructure and is now included free with VMware vSphere. VMware vCenter Operations Management Suite provides automated operations management using patented analytics and an integrated approach to performance, capacity and configuration management.
vCenter Operations Management Suite enables IT organizations to get better visibility and actionable intelligence to proactively ensure service levels, optimum resource usage and configuration compliance in dynamic virtual and cloud environments. vCenter Operations Manager Foundation is the new, entry-level edition of the vCenter Operations Management Suite. It gains deep operational insights and visibility to improve the performance and health of your vSphere environment. vCenter Operations Manager Foundation is included with every vSphere edition free of charge.
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