Virtual machines getting frozen frequently

[Shanuvashd]

Hi,

We have around 8 ESX servers running in a cluster.The VMs in this farm are getting frozen frequently.The only way to bring the VMs back to running state is to kill the PID.when i checked the hostd.log i see the below mentioned error.

VmfsAIOMgrOpen: Device or resource busy

DISKLIB-VMFS : "/vmfs/***********.vmdk" : failed to open (1049095): AIOMgr_Open failed..

DISKLIB-DSCPTR: : "/vmfs/***********.vmdk" : Failed to open vmfs disk.

"/vmfs/volume/virtual machine.vmdk" : failed to open (1049095). Descriptor file couldn't be read

"/vmfs/volume/virtual machine.vmdk" : failed to open (1049095).

"/vmfs/volume/virtual machine.vmdk" : failed to open with flags 23 (1049095).

Any idea what could be the reason.The VMs are located on FC SAN datastores.

:

[AntonVZhbankov]

Is there high IO load on datastore? If so try to find most IO loaded VMs and put them to separate datastores located on separate disk groups.

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MCSA, MCTS, VCP, VMware vExpert '2009

http://blog.vadmin.ru

[Shanuvashd]

Thanks For your response.How can analyze the I/O load on a datastore.Is there a Tool or document on how to do analyze the load on the Datastore

Thanks,

Shanu

[AntonVZhbankov]

Veeam Monitor

---

MCSA, MCTS, VCP, VMware vExpert '2009

http://blog.vadmin.ru