The write modes are Write-back and Write-through, with
write-back being the default.
In write-back mode the controller will cache the data
and return completion to the host before the data is
written to disk. This is the highest performance mode.
In write-through mode the controller will always write
the data to disk before posting complete to the host.
The data may or may not be placed into the controller's
cache.
Parsed from file DPT-SCSI-MIB.mib
Module: DPT-SCSI-MIB
Vendor: Distributed Processing Technology
Module: DPT-SCSI-MIB
[Automatically extracted from oidview.com]
dptScsiDevWriteMode OBJECT-TYPE SYNTAX DeviceWriteMode ACCESS read-only STATUS mandatory DESCRIPTION "Write-through and Write-back are the two modes of committing the cache records to the device. In the former writes are performed immediately on the device. In the latter, it is not necessary to write to the device immediately and HBA can chose a more optimal time (when it is free) to commit the cache to the device ::= { dptScsiDevEntry 33 }
dptScsiDevWriteMode OBJECT-TYPE SYNTAX DeviceWriteMode ACCESS read-only STATUS mandatory DESCRIPTION "The write modes are Write-back and Write-through, with write-back being the default. In write-back mode the controller will cache the data and return completion to the host before the data is written to disk. This is the highest performance mode. In write-through mode the controller will always write the data to disk before posting complete to the host. The data may or may not be placed into the controller's cache." ::= { dptScsiDevEntry 33 }
| OID | Name | Sub children | Sub Nodes Total | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.1597.1.4.1.1.1 | dptScsiDevId | 0 | 0 | The SCSI Id of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.2 | dptScsiDevLun | 0 | 0 | The SCSI logical unit number of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.3 | dptScsiDevLevel | 0 | 0 | Indicates the Level of the device. Level 0 indicates physical devices, while level 1 and 2 indicate logical devices. It also give… |
| 1.3.6.1.4.1.1597.1.4.1.1.4 | dptScsiDevVendor | 0 | 0 | The name of the vendor of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.5 | dptScsiDevModel | 0 | 0 | The model name of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.6 | dptScsiDevRevision | 0 | 0 | The revision level of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.7 | dptScsiDevSerialNumber | 0 | 0 | The serial number of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.8 | dptScsiDevStatus | 0 | 0 | The administrative state of the device. The following are all the possible values: invalid - current value is invalid. optim… |
| 1.3.6.1.4.1.1597.1.4.1.1.9 | dptScsiDevBusWidth | 0 | 0 | The data width of the SCSI device. |
| 1.3.6.1.4.1.1597.1.4.1.1.10 | dptScsiDevCapacity | 0 | 0 | The storage capacity of the device in MB. |
| 1.3.6.1.4.1.1597.1.4.1.1.11 | dptScsiDevLogicalBlockSize | 0 | 0 | Logical block size of the device in bytes. |
| 1.3.6.1.4.1.1597.1.4.1.1.12 | dptScsiDevPhysicalBlockSize | 0 | 0 | Physical block size of the device in bytes. |
| 1.3.6.1.4.1.1597.1.4.1.1.13 | dptScsiDevNegTransferRate, dptScsiDevMaxTransferRate | 0 | 0 | The maximum data transfer rate of the device in MB/s. |
| 1.3.6.1.4.1.1597.1.4.1.1.14 | dptScsiDevRemovable | 0 | 0 | Indicates whether or not the device is removable. |
| 1.3.6.1.4.1.1597.1.4.1.1.15 | dptScsiDevEccEnabled | 0 | 0 | Indicates whether the device has ECC enabled or disabled. |
| 1.3.6.1.4.1.1597.1.4.1.1.16 | dptScsiDevScsiVersion | 0 | 0 | Indicates the SCSI specification version of the device. |
| 1.3.6.1.4.1.1597.1.4.1.1.17 | dptScsiDevSoftReset | 0 | 0 | Indicates whether the device supports soft reset. |
| 1.3.6.1.4.1.1597.1.4.1.1.18 | dptScsiDevCmdQueuing | 0 | 0 | Indicates whether the device is supports command queuing. |
| 1.3.6.1.4.1.1597.1.4.1.1.19 | dptScsiDevLinkedCmds | 0 | 0 | Indicates whether the device is linked commands capable. |
| 1.3.6.1.4.1.1597.1.4.1.1.20 | dptScsiDevSynchronous | 0 | 0 | Indicates whether the device supports synchronous data transfers. |
| 1.3.6.1.4.1.1597.1.4.1.1.21 | dptScsiDevRelAddr | 0 | 0 | Indicates whether the device supports relative addressing. |
| 1.3.6.1.4.1.1597.1.4.1.1.22 | dptScsiDevSMART | 0 | 0 | Indicates whether the device supports SMART specifications. |
| 1.3.6.1.4.1.1597.1.4.1.1.23 | dptScsiDevSCAM | 0 | 0 | Indicates whether the device supports SCAM. |
| 1.3.6.1.4.1.1597.1.4.1.1.24 | dptScsiDevBadBlockNumber | 0 | 0 | If bad blocks have been detected on the device, this is the address of the most recent one. Otherwise it will contain 0 (no error… |
| 1.3.6.1.4.1.1597.1.4.1.1.25 | dptScsiDevBadBlockCount | 0 | 0 | This represents the total number of the bad blocks encountered most recently on the device starting at the block number dptScsiDe… |
| 1.3.6.1.4.1.1597.1.4.1.1.26 | dptScsiDevErrorsAboveThreshold | 0 | 0 | Indicates whether or not the error count of the device has reached the threshold. |
| 1.3.6.1.4.1.1597.1.4.1.1.27 | dptScsiDevDriveLockingOn | 0 | 0 | Indicates whether or not the drive is locked. |
| 1.3.6.1.4.1.1597.1.4.1.1.28 | dptScsiDevLastReqSenseInfo | 0 | 0 | The request sense information. It is used in the definition of one or more traps. |
| 1.3.6.1.4.1.1597.1.4.1.1.29 | dptScsiDevReadCachingOn | 0 | 0 | Indicates whether or not read caching is on. |
| 1.3.6.1.4.1.1597.1.4.1.1.30 | dptScsiDevReadCacheMaxRecord | 0 | 0 | Maximum record size for read caching. |
| 1.3.6.1.4.1.1597.1.4.1.1.31 | dptScsiDevWriteCachingOn | 0 | 0 | Indicates whether or not write caching is on. |
| 1.3.6.1.4.1.1597.1.4.1.1.32 | dptScsiDevWriteCacheMaxRecord | 0 | 0 | Maximum record size for write caching. |
| 1.3.6.1.4.1.1597.1.4.1.1.34 | dptScsiDevSmartStatusOk | 0 | 0 | Indicates whether the device has reported a SMART error not (not applicable to logical devices). |
| 1.3.6.1.4.1.1597.1.4.1.1.35 | dptScsiDevType | 0 | 0 | Type of device reported. |