In the event you have two systems configured with identical UUIDs for their primary/control domain, for example following a disk clone or system duplication, or if you wish to change the UUID for your own reasons, you can use the following procedure to do so. 1. Backup all of your current LDOMs configuration. How to save LDOM configuration and restore from xml file 2. Switch to the "factory-default" configuration : primary-domain # ldm set-config factory-default 3. Gracefully shut … [Read more...] about Oracle VM Server for SPARC (Ldoms) : How to Change Primary/Control Domain’s UUID
LDOMs
LDOMs troubleshooting : guest and control domains can not talk to each other but can talk with anyone else on the network
One of the common mistakes done while configuring the guest LDOMs for the first time is - to not configure control domain for inter domain communications. In this case the control domain and guest ldoms can talk to everyone on the network but not to each other. There are 2 scenarios: 1. If one just want guest domains to communicate with the outside world then one should directly plumb up the switch vsw's along with the primary domain's network interface used to create those vsws (In our … [Read more...] about LDOMs troubleshooting : guest and control domains can not talk to each other but can talk with anyone else on the network
How to Collect a Forced Crash Dump of a Hanging Solaris Guest LDom
A Solaris system panics when it encounters an unrecoverable software or hardware error. When a panic occurs, it saves data about the state of the system and then reboots. A crash dump is created so that an Oracle engineer can determine the reason for the panic. The post describes a manual way to generate a crash dump in case of a LDOM. From Control domain A panic signal can be sent to guest ldom (e.g. ldom01) from the control domain. control-domain # ldm panic/panic-domain ldom01 From … [Read more...] about How to Collect a Forced Crash Dump of a Hanging Solaris Guest LDom
Solaris 11 : Increasing the size of a vdisk in LDom ( with backend device as ZFS volume )
LDom supports a number of possible other devices to be exported by the virtual disk server as a virtual disk to the guest domain. You can export a physical disk, disk slice, volumes, or file as a block device. The following procedure is based on a setup of ZVOLs for underlying backend device on primary domain. The basic steps would work for other kinds of devices as well. Assumptions: - Guest domain is running Solaris 11 - underlying device for the vdisk on primary is a zvol - filesystem … [Read more...] about Solaris 11 : Increasing the size of a vdisk in LDom ( with backend device as ZFS volume )
The Ultimate LDOMs troubleshooting guide
Most of the LDOM issues can be easily resolved by looking at the error message. Below are some of the most commonly faced LDOM issues and basic troubleshooting tips to resolve them. 1. Unable to create LDom 2. Unable to install LDom 3. Unable to configure LDom 4. Unable to bind LDom 5. Unable to connect to LDom How to verify if LDom services are started Below are two basic services needs to be running on the Primary domain (aka Control domain) for the ldom to start/work properly. 1. … [Read more...] about The Ultimate LDOMs troubleshooting guide
LDOMs (OVM for SPARC) Command line reference [cheat sheet]
Display Default LDOM services PurposeCommand Check ldom manager (ldmd)# svcs ldmd Check vntsd is running# svcs vntsd Check Default Services are running# ldm list-services primary Check ldm software# ldm -V check ldoms manager package in Solaris 11# pkg info ldomsmanager Creating Default LDOM services PurposeCommand add virtual console concentrator (vcc)# ldm add-vcc port-range=5000-5100 primary-vcc0 primary add virtual network switch (vsw)# ldm add-vsw net-dev=net0 … [Read more...] about LDOMs (OVM for SPARC) Command line reference [cheat sheet]