VM Physical Disk Status (PI_VPDI)
- Organization of this page
Function
This record stores performance data on a physical disk being used by a virtual machine over a unit of time. This record is a multi-instance record.
In this record, you can collect performance data such as the data read/write speed of the physical disk being used by the virtual machine. For the data read/write speed, you can collect further details, that is, data write speed and data read speed. The figure below shows an example of data that can be collected in this record.
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![[Figure]](GRAPHICS/ZU050008.GIF)
- Note:
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Information cannot be collected if an attempt to connect to the monitored physical server fails.
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For Hyper-V, any special character contained in the disk name is converted to a different character and then stored in the Disk ID field. The conversion rules are as follows:
Before conversion
After conversion
# and \
_
(
[
)
]
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Default values and values that can be changed
|
Item |
Default value |
Can it be changed? |
|---|---|---|
|
Collection Interval |
300 |
Yes |
|
Collection Offset |
0 |
Yes |
|
Log |
No |
Yes |
|
LOGIF |
Blank |
Yes |
ODBC key field
PI_VPDI_VM_ID
PI_VPDI_DISK_ID
Lifetime
None
Record size
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Fixed portion: 937 bytes
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Variable portion: 1,227 bytes
Fields
|
PFM - View name (PFM - Manager name) |
Explanation |
Summary |
Grouping |
Format |
Delta |
When not collected |
Unsup-ported |
|---|---|---|---|---|---|---|---|
|
Record Type (INPUT_RECORD_TYPE) |
The record name. This is always VPDI. |
COPY |
COPY |
char (8) |
No |
-- |
-- |
|
Record Time (RECORD_TIME) |
The time when the record was created. |
COPY |
COPY |
time_t |
No |
-- |
-- |
|
Interval (INTERVAL) |
Interval during which the information is collected. [Units: seconds] |
COPY |
FIXED |
ulong |
No |
-- |
-- |
|
VA DeviceID (VADEVICEID) |
The device ID of a monitored host. |
COPY |
COPY |
string (256) |
No |
-- |
-- |
|
VM ID (VM_ID) |
ID of the virtual machine. |
COPY |
FIXED |
string (64) |
No |
No |
-- |
|
Disk ID (DISK_ID) |
ID of the physical disk (or file) used by the virtual machine. |
COPY |
FIXED |
string (257) |
No |
No |
-- |
|
VM Host Name (VM_HOST_NAME) |
Host name of the virtual machine. |
COPY |
FIXED |
string (257) |
No |
Blank |
Hyper-V KVM |
|
VM Name (VM_NAME) |
Name of the virtual machine. |
COPY |
FIXED |
string (257) |
No |
Blank |
-- |
|
Sampling Time (SAMPLING_TIME) |
Sampling time. The time when the performance information is collected on the host machine. Displayed in the following format: yyyy-mm-ddThh:mm[ |
COPY |
FIXED |
string (32) |
No |
Blank |
-- |
|
Speed (SPEED)#2,#3 |
Data transfer speed. Speed of reads from or writes to the physical disk, made by the virtual machine. [Units: KBps] |
HILO |
AVG |
double |
No |
0 |
-- |
|
Read Speed (READ_SPEED)#2,#3 |
Reading data transfer speed. Speed of reads from the physical disk, made by the virtual machine. [Units: KBps] |
HILO |
AVG |
double |
No |
0 |
-- |
|
Write Speed (WRITE_SPEED)#2,#3 |
Writing data transfer speed. Speed of writes to the physical disk, made by the virtual machine. [Units: KBps] |
HILO |
AVG |
double |
No |
0 |
-- |
|
Requests (REQUESTS)#3 |
Number of requests.
|
HILO |
ADD |
double |
No |
VMware: 0 KVM: 0 |
Hyper-V |
|
Read Requests (READ_REQUESTS)#3 |
Number of read requests. Number of times that read requests, made by the virtual machine to the physical disk, are processed. |
HILO |
ADD |
double |
No |
0 |
Hyper-V |
|
Write Requests (WRITE_REQUESTS)#3 |
Number of write requests. Number of times that write requests, made by the virtual machine to the physical disk, are processed. |
HILO |
ADD |
double |
No |
0 |
Hyper-V |
|
Commands (COMMANDS) |
Number of issued disk commands. Number of commands issued by the virtual machine to the physical disk. |
HILO |
ADD |
double |
No |
0 |
Hyper-V KVM |
|
Abort Commands (ABORT_COMMANDS) |
Number of aborted disk commands. Number of aborted commands made by the virtual machine to the physical disk. |
HILO |
ADD |
double |
No |
0 |
Hyper-V KVM |
|
Abort Commands % (ABORT_COMMANDS_PERCENT) |
Aborted disk command rate. Percentage of all commands, made by the virtual machine to a physical disk, that are aborted. Expression: "Abort Commands" field / "Commands" field |
HILO |
AVG |
double |
No |
0 |
Hyper-V KVM |
|
Bus Resets (BUS_RESETS) |
Number of bus resets. Number of times the bus was reset for a disk on the virtual machine. |
HILO |
ADD |
double |
No |
0 |
Hyper-V KVM |
- #1
-
The value used in [
![[Figure]](GRAPHICS/ZUENG003.GIF)
hh:mm] varies depending on the time zone of the monitored host. For example, if the monitored virtual environment is operating according
to JST, +09:00 is displayed. If the monitored virtual environment is operating according to UTC, Z is displayed.
- #2
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For Hyper-V, this field requires performance data to be collected at least twice.
- #3
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For KVM, this field requires performance data to be collected at least twice.