Understanding SCSI plug-in NMP errors/conditions in ESX/ESXi 7.0
Article ID: 330644
Updated On:
Products
VMware vSphere ESXi
Issue/Introduction
This article provides information about the SCSI plug-in status messages that you may observe when reviewing NMP errors in the vmkernel log.
Environment
VMware vSphere ESXi 7.x
Resolution
This table explains the SCSI plug-in status messages that are defined and updated by VMware:
For more information on SCSI host, device, ASC/ASCQ, and Plugin codes, see Interpreting SCSI sense codes in VMware ESXi
ESXi 7.X Plugin Error codes
| Code | Description | Status |
| P:0x0 | No error. | VMK_SCSI_PLUGIN_GOOD |
| P:0x1 |
An unspecified error occurred.
Note: The I/O cmd should be tried.
|
VMK_SCSI_PLUGIN_TRANSIENT |
| P:0x2 |
The device is a deactivated snapshot.
Note: The I/O cmd failed because the device is a deactivated snapshot and so the LUN is read-only.
|
VMK_SCSI_PLUGIN_SNAPSHOT |
| P:0x3 | SCSI-2 reservation was lost. | VMK_SCSI_PLUGIN_RESERVATION_LOST |
| P:0x4 |
The plug-in wants to requeue the I/O back.
Note: The I/O will be retried.
|
VMK_SCSI_PLUGIN_REQUEUE |
| P:0x5 | The test and set data in the ATS request returned false for equality. | VMK_SCSI_PLUGIN_ATS_MISCOMPARE |
| P:0x6 |
Allocating more thin provision space.
Device server is in the process of allocating more space in the backing pool for a thin provisioned LUN.
|
VMK_SCSI_PLUGIN_THINPROV_BUSY_GROWING |
| P:0x7 | Thin provisioning soft-limit exceeded. | VMK_SCSI_PLUGIN_THINPROV_ATQUOTA |
| P:0x8 | Backing pool for thin provisioned LUN is out of space. | VMK_SCSI_PLUGIN_THINPROV_NOSPACE |
ESX/ESXi 4.x Plugin Error codes
| Code | Description | Status |
| P:0x0 | No error. | VMK_SCSI_PLUGIN_GOOD |
| P:0x1 |
An unspecified error occurred.
Note: The I/O cmd should be tried.
|
VMK_SCSI_PLUGIN_TRANSIENT |
| P:0x2 |
The device is a deactivated snapshot.
Note: The I/O cmd failed because the device is a deactivated snapshot and so the LUN is read-only.
|
VMK_SCSI_PLUGIN_SNAPSHOT |
| P:0x3 | SCSI-2 reservation was lost. | VMK_SCSI_PLUGIN_RESERVATION_LOST |
| P:0x4 |
Allocating more thin provision space
Note: Device server is in the process of allocating more space in the backing pool for a thin provisioned LUN.
|
VMK_SCSI_PLUGIN_THINPROV_BUSY_GROWING |
| P:0x5 | Thin provisioning soft-limit exceeded. | VMK_SCSI_PLUGIN_THINPROV_ATQUOTA |
| P:0x6 |
Backing pool for thin provisioned LUN is out of space.
|
VMK_SCSI_PLUGIN_THINPROV_NOSPACE |
| P:0x7 | The test and set data in the ATS request returned false for equality. | VMK_SCSI_PLUGIN_ATS_MISCOMPARE |
| P:0x8 |
The plugin wants to requeue the I/O back.
Note: The I/O will be retried.
|
VMK_SCSI_PLUGIN_REQUEUE |
For more information on SCSI host, device, ASC/ASCQ, and Plugin codes, see Interpreting SCSI sense codes in VMware ESXi
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