6.0.1

Datastore counters
Table 1‑122. Data Counters
File Type Description
Virtual Disks Amount of disk space used by virtual disk files.
Virtual disk files store the contents of the virtual machine's hard disk drive, including information
that you write to a virtual machine's hard disk - the operating system, program files, and data
files. The files have the extension .vmdk and appear as a physical disk drive to a guest operating
system.
NOTE Delta disks, which also have an extension .vmdk, are not included in this file type.
n
Counter: used
n
Stats Type: Absolute
n
Unit: Gigabytes (GB)
n
Rollup Type: Latest
n
Collection Level: 1 (4)
Swap Files Amount of disk space used by swap files.
Swap files back up the virtual machine's physical memory.
n
Counter: used
n
Stats Type: Absolute
n
Unit: Gigabytes (GB)
n
Rollup Type: Latest
n
Collection Level: 1 (4)
Snapshots Amount of disk space used by virtual machine snapshot files.
Snapshot files store information about virtual machine snapshots. They include snapshot state
files and delta disk files. A snapshot state file stores the running state of the virtual machine at the
time of the snapshot. It has the extension .vmsn. A delta disk file stores the updates made by the
virtual machine to the virtual disks after a snapshot is taken.
n
Counter: used
n
Stats Type: Absolute
n
Unit: GigaBytes (GB)
n
Rollup Type: Latest
n
Collection Level: 1 (4)
Other VM Files Amount of disk space used by all other virtual machine files, such as configuration files and log
files.
n
Counter: used
n
Stats Type: Absolute
n
Unit: Gigabytes (GB)
n
Rollup Type: Latest
n
Collection Level: 1 (4)
Total Space Amount of disk space used by the virtual machine.
total space = virtual disk space + swap file space + snapshot space + other VM file space
Chart Analysis
The datastore is at full capacity when the used space is equal to the capacity. Allocated space can be larger
than datastore capacity, for example, when you have snapshots and thin-provisioned disks. You can
provision more space to the datastore if possible, or you can add disks to the datastore or use shared
datastores.
If snapshot files are consuming a lot of datastore space, consider consolidating them to the virtual disk when
they are no longer needed. Consolidating the snapshots deletes the redo log files and removes the snapshots
from the vSphere Web Client user interface. For information about consolidating the data center, see the
vSphere documentation.
Chapter 1 Monitoring Inventory Objects with Performance Charts
VMware, Inc. 87