How To Change the FQDN/HOSTNAME/PNID of the vCenter Appliance 6.7 PNID or Hostname change was not supported on the previous versions of vCenter. However from 6.7 Update 3 onwards, we can change the FQDN. Below is the step by step procedure to change the FQDN : Make a entry of the new FQDN of the […]
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How to create VMFS partition on USB device for ESXi 6.x
Plug in the USB device to the ESXi host Make sure that usbarbitrator service is off on the ESXi host so that the host will not use it as Passthrough : # /etc/init.d/usbarbitrator stop Check the usb in core device list : # esxcli storage core device list t10.SanDisk00Cruzer_Blade000000004C530001111202103073 Display Name: Local USB Direct-Access […]
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PSOD happening on ESXi host after USB disconnect
You might face a PSOD after/during the USB disconnect. If you have, you might see a PSOD with backtrace similar to below: cpu17:33399)@BlueScreen: #GP Exception 13 in world 33399:vmklinux_9:h @ 0x41802c42b8e8cpu17:33399)Code start: 0x41802c400000 VMK uptime: 3:16:17:26.592cpu17:33399)0x439113b9b830:[0x41802c42b8e8]DLM_malloc@vmkernel#nover+0x31c stack: 0x41802c7ae9c0cpu17:33399)0x439113b9b880:[0x41802c42d22b]DLM_memalign@vmkernel#nover+0x7f stack: 0x80cpu17:33399)0x439113b9b8b0:[0x41802c429c13]Heap_AlignWithTimeoutAndRA@vmkernel#nover+0xf3 stack: 0x15cpu17:33399)0x439113b9b940:[0x41802cb3c423]dma_pool_alloc@com.vmware.driverAPI#9.2+0x2b stack: 0x0cpu17:33399)0x439113b9b960:[0x41802ccf8807]ehci_qtd_alloc@#+0x17 stack: 0x5a3432352e32353acpu17:33399)0x439113b9b990:[0x41802ccf8fb4]qh_urb_transaction@#+0x318 stack: 0xffffffff21fa08d8cpu17:33399)0x439113b9ba10:[0x41802ccff1f2]ehci_urb_enqueue@#+0x5e stack: 0x0cpu17:33399)0x439113b9bac0:[0x41802ccdc151]usb_hcd_submit_urb@com.vmware.usb#9.2.3.0+0xf9 stack: 0x202cpu17:33399)0x439113b9bbb0:[0x41802cce8d41]usb_submit_urb@com.vmware.usb#9.2.3.0+0xfd stack: 0x43050f664ac0cpu17:33399)0x439113b9bbe0:[0x41802cce47fd]usb_start_wait_urb@com.vmware.usb#9.2.3.0+0x71 stack: […]
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vCenter Appliance Hostname/PNID change fails with error “Network update failed”
As we know PNID/hostname change is supported on 6.7 U3 onwards, however while changing the hostname from VAMI, you may encounter errors “Failed to create replication placeholder” and “Network update failed” : To fix the issue, we need to replace the pnid_utils.py file which is at /usr/lib/applmgmt/networking/py/vmware/appliance/networking/pnid/ location with attached one, restart Appliance mgmt. service […]
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Reset lost/forgotten root password for ESXi host :
If you have forgotten the ESXi host root password or it does not work due to locked account or expired password, we can try below methods to access the Host :- Method 1 : If the Host has access to Active Directory authentication and is in connected state in vCenter – Login to the ESXi […]
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