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Live upgrade

How to Cleanup the Liveupgrade on Solaris ?

Again I back to one of my favorite topic.Yes,its liveupgrade. As we all know liveupgrade is  newly introduced in Solaris 10 and it has great feature if you use along with ZFS filesystem. Solaris Live upgrade made the OS patching is more simple and it will save lot of time.But liveupgrade has lot of bugs and it will not work in all …

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How to patch the Solaris global zone with vxfs root local zones

In UNIX system administration, we may need to perform OS patching often.But we can;t give any Guarantee  that the server will come-up after the reboot.So prior to OS patching we need to make sure ,you have the valid back-out plan.If your global zone’s root filesystem is ZFS,then you have to choose live upgrade in order to perform OS patching. This post will help you if your global zone’s root filesystem is …

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Live upgrade patch installation before OS patching

If you want to use Liveupgrade feature on oracle Solaris 10, Oracle recommends to patch the Liveupgrade packages to the latest version since lot of bugs with old patch versions. For me Liveupgrade patch (121431-54) gave lot of trouble after booting from alternative boot environment. I have used the patch version 121431-74  which worked like charm.The logs below will show you that how to install new Liveupgrade patch on running …

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Solaris 10- OS patching using Live-upgrade

Solaris OS patching has been moved far away from the traditional methods from Solaris 10 on-wards.We no need to bring down the server to single user mode  if you are using live upgrade method during pathing and before choosing live upgrade ,make sure you are using ZFS as a root filesystem.For you information,from Solaris 11 onward,ZFS will be the default root filesystem. In other-words, if the system’s root filesystem …

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UFS to ZFS conversion-Using Live upgrade

Its time up to move form UFS to ZFS. From Solaris 10 on-wards ZFS filesystem supports root FS. If you are already having the root filesystem in UFS, you can easily convert it using Liveupgrade with minimal downtime.The actual down time is just a single reboot.Oracle is making ZFS is default filesystem from Solaris 11 onwards and there are many reason behind that. ZFS …

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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 zones in production, better keep …

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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 method and its just need …

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