Logical Disk Overview (PI_LDSK)
- Organization of this page
Function
The Logical Disk Overview (PI_LDSK) record stores performance data, taken at a specific interval, about the capacity of a logical disk at the monitored host. This is a multi-instance record.
Notes
-
If the connection to the monitored host fails, the information cannot be collected.
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If you collect this record in a Windows environment, note the following:
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This record collects performance information for hard disk drives and fixed disk drives. Performance information for other devices (such as network disks) cannot be monitored.
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If a disk volume corresponding to the ID (ID) field is not accessible due to the security settings, no record for that disk volume is created. To create a record for such a disk volume, change the security settings so that the user account specified for User in the monitoring target settings can be used to access the disk volume.
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If no drive letter or drive path is assigned to the disk volume, 0 is set in the Size (SIZE) field.
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If multiple drive letters or drive paths are assigned to the same disk volume, 0 might be set in the Size (SIZE) field.
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If you change the drive letter or drive path of a disk volume, restart the WMI service of the monitoring target you changed. If you try to collect records without restarting it, you might not be able to collect the records from that disk volume. Even if the record is collected, the Size (SIZE) field might contain a value of 0 and the ID (ID) field might contain the logical disk volume name before the change was made.
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If the OS of the monitored host is UNIX, and if Filesystem or Mounted on includes a space when you execute the df command on the monitored host, the Logical Disk Overview (PI_LDSK) record will not be correctly displayed.
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If the monitored host is running AIX in a global environment built on a Workload Partition (WPAR), and the connected user (the user set in the monitoring target settings) is not root, PI_LDSK records might not be collected.
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If the monitored host uses an optical drive, the Free Mbytes % field for the applicable instance is sometimes set to 0% when media is inserted into the drive. To remove the Free Mbytes % field from the alarm settings, specify ID <> applicable-disk in the alarm condition expression.
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Information is not collected if TargetType is set to icmp in the monitoring target settings.
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You cannot use PI_LDSK records to collect performance information for a CSV file system (CSVFS).
Default and changeable values
|
Item |
Default value |
Changeable |
|---|---|---|
|
Collection Interval |
300 |
Y |
|
Collection Offset |
0 |
Y |
|
Log |
No |
Y |
|
LOGIF |
(Blank) |
Y |
|
Over 10 Sec Collection Time |
No |
N |
|
Realtime Report Data Collection Mode |
Reschedule |
Y |
- Legend:
-
Y: Changeable
N: Not changeable
ODBC key field
PI_LDSK_ID
Lifetime
None
Record size
-
Fixed part: 1,034 bytes
-
Variable part: 1,216 bytes
Fields
|
PFM - View name (PFM - Manager name) |
Description |
Smry rule |
Grpg rule |
Format |
Delta |
Not sprtd on |
|---|---|---|---|---|---|---|
|
Record Type (INPUT_RECORD_TYPE) |
The record name. This is always LDSK. |
COPY |
COPY |
char (8) |
No |
-- |
|
Record Time (RECORD_TIME) |
Time when the record was created. |
COPY |
COPY |
time_t |
No |
-- |
|
Interval (INTERVAL) |
Interval during which the information is collected. [Units: seconds] If the data is summarized in historical reports, the last value stored is displayed. |
COPY |
FIXED |
ulong |
No |
-- |
|
VA DeviceID (VADEVICEID) |
Device ID of the monitored host. |
COPY |
COPY |
string (256) |
No |
-- |
|
Target Host (TARGET_HOST) |
Name of the monitored host. |
COPY |
FIXED |
string (33) |
No |
-- |
|
Polling Time (POLLING_TIME) |
Time when performance data was collected on the PFM - RM host. |
COPY |
FIXED |
string (32) |
No |
-- |
|
Target Host Time (TARGET_HOST_TIME) |
Time when performance data was collected on the monitored host. |
COPY |
FIXED |
string (32) |
No |
-- |
|
ID (ID) |
Windows: Logical disk volume name. UNIX: File system mount point. |
COPY |
COPY |
string (1024) |
No |
-- |
|
Device Name (DEVICE_NAME) |
Device name. |
COPY |
FIXED |
string (40) |
No |
Windows |
|
Free Mbytes (FREE_MBYTES) |
Size of unused area. [Units: MB] |
HILO |
ADD |
double |
No |
-- |
|
Free Mbytes % (FREE_MBYTES_PERCENT) |
Percentage of area unused. [Units: %] |
HILO |
AVG |
double |
No |
-- |
|
Size (SIZE) |
Disk size. [Units: MB] |
COPY |
ADD |
double |
No |
-- |
|
Ext1 (EXT1)# |
Extension field 1 |
HILO |
AVG |
double |
No |
All |
|
Ext2 (EXT2)# |
Extension field 2 |
HILO |
AVG |
double |
No |
All |
- Legend:
-
--: Supported on all OSs of the monitored hosts.
All: Not supported on any OS of the monitored hosts.
Smry rule: Summary rule
Grpg rule: Grouping rule
Not sprtd on: Not supported on
- #
-
This field is not used for operations.