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Operating Systems
Solaris
Serial Split Brain detected in solaris10
Post 302410234 by upengan78 on Monday 5th of April 2010 11:04:59 AM
04-05-2010
Quote:
Now a couple of observations on your setup.
1. Mixing internal and external disks in a volume is a bad idea ( prefereably not in the same DG )
2. If you have to use the internal disks put the log plex on the external disks with one data disk and the spare on the internal disks.
The reason for both of the above is that if you get a failure it is more likely to be consistent. Even if the external disks all fail you should be able to pull the internal disks and reattach the external ones. You will be able to rebuild the one internal data disk from parity.
If you can avoid using the internal disk at all then do. A failure of the external disks is likely to be self consistent in such a scenario and is much easier to recover.
3. Get the SCSI csi controller checked and check for patches for bugs that cause controller failure-like sysmptoms it is likely the original cause of your problem was one or other.
1. Mixing internal and external disks in a volume is a bad idea ( prefereably not in the same DG )
2. If you have to use the internal disks put the log plex on the external disks with one data disk and the spare on the internal disks.
The reason for both of the above is that if you get a failure it is more likely to be consistent. Even if the external disks all fail you should be able to pull the internal disks and reattach the external ones. You will be able to rebuild the one internal data disk from parity.
If you can avoid using the internal disk at all then do. A failure of the external disks is likely to be self consistent in such a scenario and is much easier to recover.
3. Get the SCSI csi controller checked and check for patches for bugs that cause controller failure-like sysmptoms it is likely the original cause of your problem was one or other.
Problem was that, I wanted some sort of redundancy raid 5 or mirror atleast but I found I am not gaining much by using mirror so I went with raid 5 but then I found I am not getting enough disk space for my data, so I used 2 internal disks for this raid 5 volume.
I now have the backup of data on this volume, if there is anything which can done now, I am willing to do it. Please suggest if you can .
Thanks again.
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LEARN ABOUT OPENDARWIN
install-solaris
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)