Iordanis Kazanas – Virtual Systems Administrator
Symptoms The datastore is not accessible by all hosts. The number of shared datastores between all hosts is less than 2. While implementing a vSphere High Availability (HA) configuration, you see this error on one of the ESXi 5.x hosts:The number of heartbeat datastores for host is 1, which is less than required: 2 The number … Read more
ifconfig -a /etc/sysconfig/network-scripts/ifcfg-ethX DEVICE=ethX http://www.networknet.nl/apps/wp/archives/383 At some point my lab Openfiler was assigned static ip address and the iSCSI target stopped to function; also it was not reachable by the web interface at tcp port id 446 anymore. Several reboots did not help to solve the problem. What happened? The network interface configuration was changed. … Read more
https://www.vmware.com/support/ws55/doc/ws_disk_manager_examples.html Examples Using the VMware Virtual Disk Manager The following examples illustrate how to use the virtual disk manager. You run the virtual disk manager from a command prompt. Creating a Virtual Disk To create a new virtual disk, use a command like the following: vmware-vdiskmanager -c -t 0 -s 40GB -a ide myDisk.vmdk This … Read more
This issue occurs when the .vmdk descriptor file is corrupt or missing. To resolve this issue, create a new .vmdk descriptor file for this disk and then unregister and re-register the virtual machine. This ensures that the vSphere Client detects the correct disk size and the virtual machine powers on properly. For more information on … Read more
Log in to the vSphere Web Client as administrator@vsphere.local The password is what you defined for your original user. http://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc%2FGUID-72BFF98C-C530-4C50-BF31-B5779D2A4BBB.html
http://h41111.www4.hp.com/hps/carepack/emea_middle_east/en/getserial.html There has too often been a situation that has come up where I have needed to remotely obtain a server’s manufacturer & serial number (parts replacement, TAC case, etc…) and either the documentation that I have is incomplete, or just non-existent. There are many ways that you can attempt to get this information (ILO/RSA … Read more
http://www.vtagion.com/vmware-default-username-passwords/ vCenter Appliance Configuration Default Username and Password https://(SERVER_IP):5480 username: root password: vmware vCenter Application Discovery Manager Default Username and Password http://(SERVER_IP) username: root password: 123456 vCenter Chargeback Default Username and Password http://(SERVER_IP):8080/cbmui/ username: root password: vmware vCenter Infrastructure Navigator Default Username and Password https://(SERVER_IP):5480 username: root password: Given when deploying OVA vCenter Web Client … Read more
http://ipv6-or-no-ipv6.blogspot.ca/2013/06/use-netstat-to-show-ipv4-versus-ipv6.html If you wonder how much IPv6 versus IPv4 traffic your system does, there is an nice estimation: use “netstat -s” to show the amount of inbound packets. Packets is not the same as bytes, but assuming the IPv4 packets have the same mean size as IPv6 packets, you’re fine. The exact commands are: netstat … Read more
Permissions and ownership errors – A 403 Forbidden error can also be caused by incorrect ownership or permissions on your web content files and folders. Rule of thumb for correct permissions: Folders: 755 Static Content: 644 Dynamic Content: 700 Linux permissions can be represented with numbers, letters, or words. They also include an entry for … Read more
https://support.mozilla.org/en-US/questions/963759 If you want to set the text size/pixel density in firefox different from that of your system’s settings like it was handled in prior versions, enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named layout.css.devPixelsPerPx. double-click it and change its value … Read more