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With Solaris 11, Oracle introduces the new zpool split command to split the ZFS pool (SPARC / x86 ). This comes in handy to increase the size of the rpool. Below are the high level steps involved :

Steps Involved

1. attach a mirror device to the rpool
2. reboot off the mirror (to verify everything works).
3. split the original disk from the pool.
4. set the “autoexpand” property of the rpool
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During system installation, one may allocate an over-generous amount of disk space to the root partition and may later wish to reclaim any unused space. The post describes how to reduce the space allocated to an root file system on a Linux Volume Manager (LVM) logical volume.
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Chrony is introduced as new NTP client to replace the ntp as the default time syncing package since RHEL7, so if you configure NTP during the installation process, it just enables the chronyd service, not ntpd service.
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kofi agyapong's profile photo
 
Great piece. i have install RHEL7 on oracle virtual box and most times my server clock is off my hours and some minutes.
i have enable chronyd to start at boot but i also have to restart it again to get the correct time when i start my virtual machine.
i also have a solaris question.do u have a forum or a place that i can get the question to you. Thanks
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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.
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What is XCP?
XCP stands for XSCF (eXtended System Control Facility) Control Package. The XCP software is composed of :
1. eXtended System Control Facility : software which includes specific features implemented for OPL, including features such as the Fault Management Architecture, Dynamic Reconfiguration, Capacity On Demand, XSCF CLIs, etc and POST, This includes the base linux kernel and the associated linux packages (aka ELSC),
2. OpenBoot PROM.
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Stoyan Stoyanov's profile photo
 
we have 3 of those in the lab - too bad, we can't do Dyn Domains on them. M4k can.
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Solaris 11.2 provides a supported way to add new resources to a running zone online. Prior to this version, a reboot of the non-global zone was required to make the changes effective. The post describes an example of adding a raw disk device online to a non-global zone.
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For new installation of RHEL 7 ,GUI doesn’t come with default installation. If you do not click on the “Software Selection” link and pick “server with GUI” then there will be no GUI after reboot, only “Base Environment ” will be installed.
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Question : How to Start or stop firewalld (iptables in earlier version) in CentOS / RHEL 7?

Solution :
The iptables service is replaced with firewalld service in Oracle Linux 7. The command iptables -L will list the set of rules that are in place on node.
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The post lists the new systemctl command in RHEL 7 with the legacy service/chkconfig command. Legacy commands service and chkconfig are still compatible in RHEL 7 with forwarding/redirecting information output of prevailing command systemctl.
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Post describes procedure to disable IPv6 on CentOS/RHEL 7. There are 2 ways to do this :
1. Disable IPv6 in kernel module (requires reboot)
2. Disable IPv6 using sysctl settings (no reboot required)
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To be able to manage (poweron/poweroff) and configure various domain related tasks such as domain creation, domain configuration etc.. we must have to setup XSCF on network. To confgure XSCF networking for the first time, you need to connect the serial port as shown in the diagram below (M5000 server example).
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