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Need description on System Controllers

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Operating Systems Solaris Need description on System Controllers
# 8  
Old 05-15-2009
I feel I need to add a bit here :-)

Recently I had a similar situation with a 6800. Both Sc's were uncontactable, so I rebooted the slave via the reset switch on the front and it came back online. I then tried to pass the MAster SC's `master` status over to the slave, then reboot it, but I couldnt.

So, naughty as it sounds, I did a bit of live testing, and manually reset the uncontactable Master SC. I reset the unit via the reset button on the front and instantly one of my domains went off line.

So, 1/100 times when you loose your SC, your ok. But every now and then you will get problems.

When you say the SC's are down, do you mean phyiscally off ?? Or just uncontactable ?? If the later, then they are still perform thier monitoring time / speed actions on the domain.

I think the best way to think here, is that if your SC's go down, best to reserve some time to shut domains down and get those SC up and running.

SBK
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LEARN ABOUT X11R4

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)