Loading

×Sorry to interrupt
CSS Error

Refresh

Cookie Preference Center

General Information on cookies

When you visit our website, we use cookies to ensure that we give you the best experience. This information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies by clicking on the different category headings to find out more and change your settings. However, blocking some types of cookies may impact your experience on the site and the services we are able to offer. Further information can be found in our

Cookie Policy.

Strictly Necessary

Strictly Necessary

Always Active

Strictly Necessary

Strictly necessary cookies are always enabled since they are essential for our website to function. They enable core functionality such as security, network management, and website accessibility. You can set your browser to block or alert you about these cookies, but this may affect how the website functions. For more information please visit www.aboutcookies.org or www.allaboutcookies.org.

Cookie Details‎

Performance

Performance

Performance

Performance cookies are used to analyze the user experience to improve our website by collecting and reporting information on how you use it. They allow us to know which pages are the most and least popular, see how visitors move around the site, optimize our website and make it easier to navigate.

Cookie Details‎

Please confirm your settings by refreshing the page.

Functional

Functional

Functional

Functional cookies help us keep track of your past browsing choices so we can improve usability and customize your experience. These cookies enable the website to remember your preferred settings, language preferences, location and other customizable elements such as font or text size. If you do not allow these cookies, then some or all of these services may not function properly.

Cookie Details‎

Advertising

Advertising

Advertising

Advertising cookies are used to send you relevant advertising and promotional information. They may be set through our site by third parties to build a profile of your interests and show you relevant advertisements on other sites. These cookies do not directly store personal information, but their function is based on uniquely identifying your browser and internet device.

Cookie Details‎

Advertising Cookies

Consent Leg.Interest

Select All Vendors

Select All Vendors

Select All Hosts

Select All

Clear Filters

Information storage and access

Apply

Confirm My Choices Reject All Allow All

My Subscriptions

Loading

Knowledge Base

Cloning or Storage vMotion fails at 18% with the error: Failed to clone: Connection timed out (1029244)

Last Updated: 3/20/2024Categories: TroubleshootingTotal Views: 19695Language:
English

Subscribe to get an email
newsletter with new updates

Please provide article feedback:

Symptoms

Storage vMotion of a virtual machine fails at 18% on ESX/ESXi 4.1 hosts

You see the error:

Failed to clone: Connection timed out.

The ESX /var/log/vmkernel log or ESXi /var/log/messages log for ESXi 4.x contains entries similar to:

Oct 5 19:15:12 vmkernel: 26:15:27:13.225 cpu4:4100)NMP: nmp_CompleteCommandForPath: Command 0x83 (0x41033f4e0040) to NMP device "naa.60000970000192601889533031343443" failed on physical path "vmhba2:C0:T0:L72" H:0x0 D:0x2 P:0x0 Valid sense data: 0x5
Oct 5 19:15:12 0x25 0x0.
Oct 5 19:15:12 vmkernel: 26:15:27:13.226 cpu4:4100)NMP: nmp_CompleteCommandForPath: Command 0x83 (0x41033f6b0540) to NMP device "naa.60000970000192601889533031343443" failed on physical path "vmhba2:C0:T0:L72" H:0x0 D:0x2 P:0x0 Valid sense data: 0x5
Oct 5 19:15:12 0x25 0x0.
Oct 5 19:15:12 vmkernel: 26:15:27:13.227 cpu4:4100)NMP: nmp_CompleteCommandForPath: Command 0x83 (0x41033f37cb40) to NMP device "naa.60000970000192601889533031343443" failed on physical path "vmhba2:C0:T0:L72" H:0x0 D:0x2 P:0x0 Valid sense data: 0x5
Oct 5 19:15:12 0x25 0x0.
Oct 5 19:15:13 vmkernel: 26:15:27:14.237 cpu4:4440)WARNING: NMP: nmpDeviceAttemptFailover: Retry world failover device "naa.60000970000192601889533031343443" - issuing command 0x41033f6ba240
Oct 5 19:15:13 vmkernel: 26:15:27:14.249 cpu4:4100)WARNING: NMP: nmpCompleteRetryForPath: Retry command 0x83 (0x41033f6ba240) to NMP device "naa.60000970000192601889533031343443" failed on physical path "vmhba2:C0:T0:L72" H:0x0 D:0x2 P:0x0 Valid sen
Oct 5 19:15:13 se data: 0x5 0x25 0x0.

ESX/ESXi 3.5 and 4.0 do not experience this issue and can perform clones and Storage vMotion when sharing connectivity to the same storage

Resolution

This issue is caused by an incorrect response provided by the attached SAN storage for a SCSI command that it did not support. According to the logs, the SAN array provided the message Illegal Request (0x5) - Logical Unit Not Supported (0x25 0x0)in response to SCSI command type 0x83 (Extended Copy). The Extended Copy command is part of the vStorage APIs for Array Integration feature in VMware ESX and ESXi 4.1.

When VMware ESX or ESXi performs a Storage vMotion task, virtual machine data is moved between disks. If ESX is connected to an array that supports vStorage APIs for Array Integration (VAAI), it attempts an Extended Copy for disk clones. In other circumstances where an array that does not support VAAI, ESX perform this move via standard disk clone using host and SAN I/O.

In the above case, the Extended Copy was not supported by the SAN array. A valid response is Illegal Request - Invalid Field in Command Descriptor Block (CDB)(as opposed to Illegal Request - Logical Unit Not Supported.) It may be possible to enable VAAI support for a SAN array with additional firmware updates, engage your array vendor.

This miscommunication results in an operation time out for the disk copy on VMware ESX and a failed Storage vMotion. As a workaround, the VAAI primitives can be disabled in VMware ESX. With this configuration, ESX performs the data copy via standard disk clone using host and SAN I/O.

To disable array hardware acceleration for Cloning and Storage vMotion operations, see Disabling the VAAI functionality in ESX/ESXi (1033665).

Note: In addition, you may have to update the firmware of the array to support VAAI.

Related Information

VMware ESX, if connected to an array that supports VAAI, allows the array to offload workloads, such as block copying and allocation. This allows for operations such as virtual machine disk clones or Storage vMotion and block zeroing/allocations to be performed without consuming additional host computing resources or inducing unnecessary storage I/O. This capability is introduced with VMware vStorage APIs for Array Integration (VAAI) for VMware ESX/ESXi 4.1.

For more information, see vStorage APIs for Array Integration FAQ (1021976).

Note: VMware ESX/ESXi attempts to perform or test VAAI capabilities (primitives) on attached storage devices associated to an array which conforms to a VAAI rule every 15 minutes. In the above scenario, there may be benign or informational errors logged every 15 minutes against all storage devices while these primitives are tested.

For additional technical information on SCSI command 0x83, see T10/99-143r1: 7.1 EXTENDED COPY command.

Note: The preceding link was correct as of June 22, 2012. If you find the link is broken, provide feedback and a VMware employee will update the link.

Frequently Asked Questions for vStorage APIs for Array Integration
Disabling the VAAI functionality in ESXi/ESX

Detectable by VMware SkylineTM

Actions

Copy

link to clipboard
copied!

Print

Language:
English

Attachments

Additional Resources

KB
•
End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

KB
•
Download and Install VMware Fusion (2014097)

KB
•
备份虚拟机失败并出现错误：VMX 中的协议错误 (1007346)

KB
•
La copia de seguridad de máquinas virtuales falla con el error: Protocol error from VMX (1007346)

Results 1-4 of 4

Ask The Community

Get answers quickly from VMware experts in the community

Post Subject

CONTINUE IN COMMUNITIES

Related Products:

VMware vSphere ESXi

VMware ESX Server

Related Versions:

VMware vSphere ESXi 5.0

VMware ESXi 4.1.x Installable

VMware ESXi 4.1.x Embedded

VMware ESX 4.1.x

Take Our Survey

Support Assistant