11/19/2023 0 Comments Vsphere datastore usage on disk![]() ![]() This chart displays the top ten virtual machine disks with the highest average read latency in milliseconds. Average Read Latency per Virtual Machine Disk.The chart displays information about the 10 hosts with the highest values. This chart displays the per-host disk write rates for a datastore. The chart displays information about the ten hosts with the highest values. This chart displays the per-host disk read rates for a datastore. When Storage I/O is enabled, queue depth can change over time when congestion is detected at the array. This chart displays maximum queue depth that hosts are currently maintaining for the datastore. The chart displays the 10 hosts with the highest device latency. This chart displays the average amount of latency on a host device. This chart displays the percentage of time during which Storage I/O Control actively controlled latency of the datastore. The chart displays zero values when Storage I/O Control is disabled. This chart displays the number of I/O operations per one second on the datastore, aggregated across all hosts, and virtual machines accessing this datastore. This chart displays zero values when Storage I/O Control is disabled. Data for all virtual machines is combined. High latencies that are the result of large I/Os are discounted so as not to make the datastore seem slower than it really is. It captures the device level latency and does not include any queuing inside the hypervisor storage stack or inside the VM. I/O count is used as the weight for the response time. This metric computes a weighted response time across all hosts and VMs accessing the datastore. Storage I/O Control monitors latency to detect congestion on the datastore. This chart displays the normalized latency in microseconds on the datastore. The Space capacity by Datastore in GB displays the top 10 configured size of the datastores in the datastore cluster. The Space allocated by Datastore in GB displays the top 10 datastores, virtual machines in the datastore-cluster with most provisioned space. The Space Utilization by Virtual Machine chart displays the amount of space used by the five virtual machines with the most space used on the datastore or the datastores in the cluster. The Space used by Datastore in GB chart displays the 10 datastores in the data center with the most used disk space. The Space Utilization by File Type chart displays space used by virtual disks, swap files, snapshot files, and other virtual machine files on the datastore or the datastore cluster. The Space in GB chart displays space usage data counters for datastores. The counters available are determined by the collection level set for vCenter Server. The help topic for each chart contains information about the data counters displayed in that chart. The datastore charts contain information about disk usage for datastores or the datastores that are part of a cluster. ![]()
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