Scenario when PCI slot id is changed for the same physical nic leading to...
Symptoms- vmnic enumeration changed due to change in PCI Slot id.- Duplicate mac address noticed for two vmnics in esx.conf file.CauseThe vmnic label changes due to change in PCI Slot ID and many other...
View ArticlevMotion fails at 67% with error ‘The VM failed to resume on the destination...
Symptoms- vMotion fails at 67%.- Error message is ‘The VM failed to resume on the destination during early power on’- hostd will post the below events on the destination ESXi...
View ArticleVM backup fails randomly using VDP.
Symptoms- VM backup fails randomly.- VM backup fails during create snapshot.2013-05-30 21:07:06 avvcbimage Info <14632>: snapshot create completed2013-05-30 21:07:06 avvcbimage Info...
View ArticleLog Analysis: ESXi 4.1 Host not responding due to APD
- We notice the ‘rport’ messages are only observed when an array controller port times out, not when it is visible again. The message of “blocked FC remote port time out” literally translates to the...
View ArticleCannot expand LUN from ESXi or vCenter.
Symptoms: You are unable to increase the LUN size.The storage device shows the increased size, but the datastore size is not increased or shown in the Add Storage option. In the hostd.log file, you see...
View ArticleHosts gets disconnected from VC and VM goes into not responding state. HA did...
Hostname: ESXi-A Version: ESXi Build: 5.1.0 build-914609 Observations: - As per vmksummary, the ESXi was powered off at 22-01-2014 16:33:20 UTC time and booted back at 22-01-2014 17:02:30....
View ArticleVM Backup using VDP fails with CnxAuthdConnect message.
VM Name: VM-ABackup Time: 30th May,2013 16:31 local timeAnalysis:avvcbimage.log in VDP server:2013-05-30 16:34:00 avvcbimage Info <16041>: VDDK:NBD_ClientOpen: attempting to create connection to...
View ArticlePerformance stats are not available (shows blank) for some ESXi hosts in...
Symptoms:Real time performance stats works for the same ESXi hosts. We are able to see the performance data for other ESXi host of the same cluster in vCenter.Log...
View ArticleWhy VM VM-A went into suspended state automatically.
Analysis:- At 12/6/2013 12:41:36 PM ,VM VM-A went into suspended state and we donot notice any user assigned to it in events.Cause:- The event is observed in hostd logs and Send_NMI_To_Guest is part of...
View ArticleESX 3.5 build-153875 crashed with Lost heartbeat PSOD.
Timestamp: Jan 8th,2014 02:24:26Server hardware: IBM x3850M2/x3950 M2Memory configuration:MemTotal: 799732 kBHighTotal: 0 kBLowTotal: 799732 kBSwapTotal: 554200...
View Article100 VDI users unable to login to View desktops and VMs were not powered on.
Timestamp: 17th Dec,2013 07:30 local timeAnalysis:- As per view connection manager logs, users were not able to connect to the desktops since they were not powered on followed by ldap...
View ArticleBackup of VM randomly fails using VDP.
VM: VM-ATime: 9PM 30 May,2013Analysis:-VM backup fails during create snapshot.2013-05-30 21:07:06 avvcbimage Info <14632>: snapshot create completed2013-05-30 21:07:06 avvcbimage Info...
View ArticleIssue reported as Storage path failovers and disconnects.
Analysis:- We noticed lot of aborts being received at Qlogic hba as per below log snippets. Apr 4 01:29:09 vmkernel: 82:03:10:13.242 cpu39:4311)<6>qla2xxx 0000:41:00.0: scsi(6:2:10): Abort...
View ArticleLUNs are not responding while being browsed from ESXi.
Environment:ESX build # VMware ESXi 4.1.0 build-348481Host Hardware DELL PowerEdge R710Symptoms:- VMs on hosts ESX001 and ESX003 are not responding.- Unable to see any VMs listed for ESX002.- All LUNS...
View ArticleSLES11 SP2 VM encounters CPU contention issue on ESXi.
Description: SLES 11 SP2 VM encounters CPU crunch issue constantly on ESXi 5.0 U1 There is only one VM running on the host.There is no CPU limit or reservation set.System Configuration: ESXI...
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Unable to access single VM Guest OS.
Symptoms:- Unable to rdp or view Guest OS console.- VM shows as powered on.- While trying to cd into VM directory, it gives an input/output error.- Only one VM in that datastore is impacted while other...
View ArticleESX restarted automatically twice.
Time Stamp: Jan 6 06:10:16 and Jan 13 06:10:30 local time.Hostname: esx1.vmware.comVersion: VMware ESX 4.0.0 build-164009Server Model: Specification Version: 2.0 Vendor: IBM...
View ArticleESX/ESXi Hosts connected to DELL MD3xxx series may lose access under heavy IO.
Symptoms: - ESXi was not responding, but was pingable.- VMs were not responding.- Heavy IO load on the LUNs leading to high latency.Environment: ESXi 5.0 Build 504890 (ESX/ESXi 4.1 is also...
View ArticleAlert: NFS jinx on vSphere 5.5 U1 resolved !!!!!!!!!!!!!!!!!!!!!!
- There was an issue reported earlier in vSphere 5.5 U1 where NFS APD was reported intermittently.- kb related to the issue:http://kb.vmware.com/2076392- This lead to BSODs on Windows VM and read only...
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Hands on Nutanix Product Sizer Tool
This blog is kinda special to me for couple of reasons:- Its my first blog after I left VMware.- This is my first blog for Nutanix. Nutanix recently released the product sizing tools for the...
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