Class AixHWDiskStore

java.lang.Object

oshi.hardware.common.AbstractHWDiskStore

oshi.hardware.common.platform.unix.aix.AixHWDiskStore

All Implemented Interfaces:

HWDiskStore

@ThreadSafe
public abstract class AixHWDiskStore
extends AbstractHWDiskStore

Abstract base for AIX HWDiskStore. The updateAttributes() math (rough read/write split from total transfers and block counts, monotonic-increase enforcement) is shared; subclasses fetch the per-disk stats from their respective perfstat driver.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	AixHWDiskStore.DiskStats	Per-disk stats fields the AIX HAL reads.

Field Summary

Fields inherited from class AbstractHWDiskStore

currentQueueLength, partitionList, readBytes, reads, timeStamp, transferTime, writeBytes, writes

Modifier and Type	Field	Description
protected long	currentQueueLength
protected final AtomicReference<List<HWPartition>>	partitionList
protected long	readBytes
protected long	reads
protected long	timeStamp
protected long	transferTime
protected long	writeBytes
protected long	writes

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AixHWDiskStore(String name, String model, String serial, long size)

Method Summary

Modifier and Type	Method	Description
protected abstract AixHWDiskStore.DiskStats	queryStats()	Looks up this disk's per-disk stats from the subclass's perfstat data source.
boolean	updateAttributes()	Make a best effort to update all the statistics about the drive without needing to recreate the drive list.

Methods inherited from class AbstractHWDiskStore

getCurrentQueueLength, getDiskType, getModel, getName, getPartitions, getReadBytes, getReads, getSerial, getSize, getTimeStamp, getTransferTime, getWriteBytes, getWrites, setDiskStats, setPartitionList, toString

Modifier and Type	Method	Description
long	getCurrentQueueLength()	The length of the disk queue (#I/O's in progress).
String	getDiskType()	The type of the disk, such as SSD, HDD, Removable, Virtual, or Unknown.
String	getModel()	The disk model
String	getName()	The disk name
List<HWPartition>	getPartitions()	The partitions on this disk.
long	getReadBytes()	The number of bytes read from the disk
long	getReads()	The number of reads from the disk
String	getSerial()	The disk serial number, if available.
long	getSize()	The size of the disk
long	getTimeStamp()	The time this disk's statistics were updated.
long	getTransferTime()	The time spent reading or writing, in milliseconds.
long	getWriteBytes()	The number of bytes written to the disk
long	getWrites()	The number of writes to the disk
protected void	setDiskStats(long reads, long readBytes, long writes, long writeBytes, long currentQueueLength, long transferTime, long timeStamp)	Sets the disk statistics.
protected void	setPartitionList(List<HWPartition> partitionList)	Sets the partition list.
String	toString()

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

AixHWDiskStore

protected AixHWDiskStore(String name,
 String model,
 String serial,
 long size)

Method Details

updateAttributes

public boolean updateAttributes()

Description copied from interface: HWDiskStore

Make a best effort to update all the statistics about the drive without needing to recreate the drive list. This method provides for more frequent periodic updates of individual drive statistics but may be less efficient to use if updating all drives. It will not detect if a removable drive has been removed and replaced by a different drive in between method calls.

Returns:

True if the update was (probably) successful, false if the disk was not found

queryStats

protected abstract AixHWDiskStore.DiskStats queryStats()

Looks up this disk's per-disk stats from the subclass's perfstat data source.

Returns:

stats POJO, or null if no entry was found for this disk name