Snapshot consolidation is useful when snapshot disks fail to compact after a Delete or Delete all operation or if the disk did not consolidate. This might happen, for example, if you delete a snapshot but its associated disk does not commit back to the base disk.
Virtual machine VM consolidation utilizes live migration of virtual machines VMs to transfer a VM among physical servers in order to improve the utilization of resources and energy efficiency in cloud data centers.
The virtual machine will fail to power on and enter an Orphaned state. The virtual machine will fail to power on and enter an Inaccessible state. This file is in binary format and if deleted it will be automatically re-created when a VM is powered on. It was developed to store virtual machine disk images, including snapshots. VSAN 5. VMFS 6 released with vSphere 6. Do you know the LUNs on your environment might have different versions? A LUN is a logical section of storage.
A LUN can be backed by a single disk or multiple disks. Because log messages that are stored on RAM disk are not retained after a reboot, troubleshooting information contained within the logs and core files will also be lost. If a persistent scratch location on the host is not configured properly, you might experience intermittent issues due to lack of space for temporary files, and the log files will not be updated. This can be problematic in low-memory hosts, but is not typically a critical issue for ESXi operation.
If the installation device is considered local during deployment, the ESXi host does not usually need to be manually configured with a scratch partition. Note A symlink is a special type of file that contains a reference to another file in the form of an absolute or relative path.
For more information, see Creating a persistent scratch location for 4. The local ESXi logs can be accessed and inspected in one of several ways directly on each host:. The following table provides a comprehensive list of ESXi 6. Many different log files are generated automatically by different ESXi components and services. Log File. ESXi Shell authentication information such as success and failures.
DHCP client log, including discovery, address lease requests and renewals. ESXi patch and update logs useful if you need to know why a patch failed. ESXi shell usage logs that track commands that were run.
A compressed file that contains boot log information. Can be read without unzipping, by using zcat. Server and System Logs lists log files or reports, their locations and associated configuration files. The VMware vCenter Server 6.
You need to log into the vcenter server appliance using the console. Step 2: Check disk space. Step 3: Find Large Files. Step 4: Change directory. Step 5: Delete the large file.
Step 6: Reboot. You can get to it either via the console interface or via ssh. Core VMkernel logs , including device discovery, storage and networking device and driver information, and virtual machine startup information and driver events.
Under Inventory Lists, select vCenter Servers. Click the Monitor tab and click System Logs. VRealize Log Insight is a log collection and analytics virtual appliance that enables administrators to collect, view, manage and analyze syslog data.
Log Insight provides real-time monitoring of application logs , network traces, configuration files, messages and performance data. Most all commands or operations come down from VC through it. Storage volumes are visible from the vSphere Client, in the inventory for hosts and clusters. Typical names are datastore1 and datastore2. View VM Logs. The VM Logs displays the actions related to the Guest machines.
To access the VM logs , right-click on a Guest machine in the left pane, and then select one of these menu options: View VM's log file list: Displays the list of log files for the selected Guest. Select a vCenter Server instance in the object navigator.
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