To completely uninstall vCloud Director 1.5 and its components then use the following steps as a guidline: 1) Log into your VCD administrators portal and remove everything possible. That includes VMs, VAPPs, VSEs, networks, organizations etc 2) Disable then Unprepare Hosts (this requires maintenance mode) Just for reference. If you ever want to manually put your hosts Read More…
Category: VMware
Random Loss of Connectivity on ESXi5 NICs.
We lost network connectivity to all of the VMs on a particular ESXi 5.0 host. vMotion, Mgmt Network and Storage network were all unaffected. No other host was affected and the NICs were twinned for resilience. When clicking on the NICs via the dVS tab none of the CDP information was showing for either NIC (Cisco Read More…
VCSA : Cannot complete login due to an incorrect user name or password
Occasionally you may forget your vCenter login password. If you are using the VirtualCenter Server Appliance (5.0 in my case) and fail three times (by default) then you’ll get locked out To check this is the case. SSH (via root) to your appliance Then examine /var/log/messages . I found this line: Jul 11 14:49:50 jord-vcenter Read More…
Veeam Backup Error: VDDK command cannot be completed in reasonable time
Issue We have a Veeam Repository Server (6.5.0.106) located in Datacentre 1. We have a 1Gb link to Datacentre 2 which houses a Veeam Proxy server. The Veeam Repository Server calls all the jobs both locally in DC1 and in DC2 remotely. All backup data is stored locally – via pRDMs – to their DC (so Read More…
No Datastores Accessible – VDC 5.1
Scenario: I provisioned a new datastore (VCLOUD2) then added it to the Datastore Cluster vCloudDatastoreCluster). Shortly afterwards Igot the error "No datastores accesible to VDC" and my original datasore (vCloud1) had disappeared. OS: Esxi 5.1 / vCloud Director 5.1 My original setup I then added VCLOUD2 to the DS Cluster. (drag datastore into the Read More…
Permanently Unpresent a LUN in ESXi 5.x and Equallogic – 6 Simple steps
The following is a quick tutorial on removing a VMFS datastore from an ESXi host 1) Do the pre-requsite checks Ensure : – The datastore is not part of the Datastore Monitoring (HA). – SIOC is disabled on the datastore. – The datastore is not part of a SDRS cluster OR part of a datastore Read More…
ESXi 5.1 Host Shows : 0% CPU, 0% Memory and 0 Second Uptime
Scenario: We just restarted our vCenter process (via Services on Windows 2008 R2). Once restarted one of the hosts (esxi0) decided not to show any statistics. Automated DRS then began to move a bunch of VMs off to the rest of the cluster. All the VMs were in functional order. The realtime performance data had stop Read More…
Error unmounting VMFS : The vSphere HA agent on host ‘‘ failed to quiesce file activity on datastore
Scenario: When unmounting a datastore I got the following error on an ESXi 5.1 hosts: The vSphere HA agent on host ‘<host>’ failed to quiesce file activity on datastore ‘/vmfs/volumes/xxxxxxx-xxxxxxxxx-xxxxxxxxx-xxxxx’. To proceed with the operation to unmount or remove a datastore, ensure that the datastore is accessible, the host is reachable and its vSphere HA Read More…
Equallogic VMware iSCSI LoginTimeout Settings
We were looking to upgrade firmware on some Equallogic SANs and therefore the timeout settings when a controller restarts. The hosts connected to this are all ESXi 5.1 From VMware documentation: Extend the iSCSI login timeout on the ESXi host to 15 – 30 seconds Source: VMware Equallogic From Dell documentation: VMware patch Read More…
Extremely Slow Snapshot Deletion
Scenario: We have a VM running on an ESXi5.1 host that was taking over an hour to backup via Veeam. All the others were taking considerably less. During the next run of the scheduled Veeam backup it seemed that the slow-down occurred when removing the snapshot Veeam creates. Having a browse of the datastore and Read More…
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