Solaris 10 offers many virtualization technologies and zones are one among them.Here we are going to see about sparse root zone.Sparse root zone shares as a read-only file system from the global zone of the /usr, /lib, /sbin and /platform directories.So compare to whole to root zone ,it will consume very less disk space.But you can’t […]
Zones
how to boot Solaris local zone in single user mode ?
Many of us known to boot the Solaris global zone in single user mode.But have you ever tried to boot Solaris non-global zone in single user mode ?.In SPARC based machines we have an “OK” prompt to boot the OS in single user mode and using grub menu, we can to boot on X86 machines in single user mode.So how can we […]
Solaris OS and veritas patching procedure with VCS
We have seen many post about Solaris 10 OS patching using Liveupgrade method.Here we are going to see traditional OS patching where your root filesystem is UFS.The setup which i took is some what complex one. Here the global zone is part of veritas cluster and couple of zones are controlled by VCS and one zone is non-cluster.Here the root […]
Preventing zone core files on Global zone -Solaris
Coredump is memory dump of program or application and its generates when application crashes or terminated abnormally.This coredump is very useful to find root cause of application crashes.But sometimes it will create a problem by filling the root filesystem if /var/core is part of root filesystem and again all the local zones core files will be dump in global zone’s […]
How to plumb new IP in the zone on fly
As we all know that plumbing a new interface and assigning a IP address in Solaris 10 global zone. Have you ever added the new IP address in local zone without rebooting it ? Will it work by adding the IP information in zone’s configuration using zonecfg ? No. If you add a any new configuration in zonecfg, it requires […]
Solaris ZONE + Liveupgrade compatibility model –Solaris 10
Using ZFS as root filesystems on global zone and local zone is huge advantage for OS patching. ZFS is very flexible with Liveupgrade, so that rollback action is very simple. It’s Just reboot. Here we will see what type of zone+zfs configuration will support in Solaris 10 for Liveupgrade. If you are planning to use […]
lucreate failed due to – Zones residing on top level of the dataset.
Live-upgrade:Oracle Solaris 10 has come with ZFS and live-upgrade features to eliminate the down time for OS patching.But still this feature need lot of maturity in order to use in critical production environment.It has so many bugs and many restricted configuration setup. I would say oracle Solaris is completely moved to next generation OS patching […]