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…
Author: Jordansphere
I currently work for an ISP on the South coast as a Senior Engineer. I mainly spend my time maintaining the Cloud. CCNA, VCP4/5, VCP-Cloud
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…
Convert a MS SQL 2008 Database to SQL 2005
Scenario: We developed a database in MS SQL 2008 but wanted to house it on MS SQL 2005 server. To convert it to SQL2005 use the following steps: 1) On the SQL Server 2008: Find the DB you want to convert Right click the DB (GreenDB in our case) -> Tasks -> Generate Scripts. This 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…
APC PDU: Someone is currently logged into the APC Management Web Server. Please try again later
Scenario: Trying to log into the web interface (HTTPS) of an APC PDU throws up a Someone is currently logged into the APC Management Web Server. Please try again later error. I suspect it was me when my browser crashed and now no-one else can log in. To get around this problem either telnet or 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…
Allowing 2 Administrators access via RDP – Windows 2008 R2
Scenario: By default Windows 2008 R2 only allows one session per user. It is often the case that more than one Administrator needs to login. To enable this go-to START -> ADMINISTRATIVE TOOLS -> REMOTE DESKTOP SERVICES -> REMOTE DESKTOP SESSION CONFIGURATION MANAGER When that page opens up right-click “Restrict each user to Read More…
Apache consuming all memory on a small VPS
Scenario: We have a user with VPS (Centos 6) server. The server will occasionally consume all its memory and lock up completely. Only a “reset” of the Virtual Machine will bring it back as the VMware Tools becomes unresponsive as well. The server only runs a small WordPress site (with MySQL server). It started with Read More…
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