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Operating Systems Solaris Moving file systems from one server to the other Post 303021282 by hicksd8 on Tuesday 7th of August 2018 03:00:38 PM
Old 08-07-2018
Well being professional the first thing you need to do before you mess with anything is to backup the lot. UFS filesystems are dumped using fssnap to take a snapshot (i.e. freeze) a filesystem which outputs a special device name. You then use that special device name to ufsdump the whole filesystem to backup (tape, external drive, whatever). Without doing that first should anything go seriously wrong you are stuffed. Your data is the most important thing!!!

Now, if you are saying that all filesystems are on a SAN then you should be able to get the storage boys to offer the LUNs to your new box. The main thing is whether that new box will boot from the root filesystem without error since I'm assuming that it's not identical hardware so different drivers might need to be loaded. That might take a few tricks. Also, the actual device nodes (e.g. c0t0d0s0) might be different but there are ways to get around that. You will need to manually update files like /etc/vfstab, /etc/system, etc, once the LUN's are swung across to the new box. This way you don't necessarily need to restore anything if you can get away with it.

Alternatively, you get your storage team to allocate new similar capacity LUN's for each and every filesystem, you install Solaris from installation media, and then restore each filesystem from its ufsdump file. You will still need to tackle the issues surrounding different hardware and incorrect drivers being restored.

HOWEVER, provided you have done the ufsdump backups for each and every filesystem, if anything goes bang you can recover. Just be totally professional and backup everything before you mess with it.

Hope that helps.
 

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install-solaris(1M)													       install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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