[Sunhelp] MOving Disks on E4500

[Jarrett Carver]

I take it you will need to add controlers to another expansion card? 
otherwise if the controllers are already there you can just move the SCSI 
cable to the other controller (provided of course that the disk on the 
controller have been disabled ).

If you are looking ot add components to a running system. First you will 
need to make sure the following are enabled in you /etc/system:

set soc:soc_enable_detach_suspend=1
set pln:pln_enable_detach_suspend=1
set dr_max_mem=2

These will allow you to power down expanision boards and remove them while 
the system is still up and running.

Then you will need to look at the cfgadm man page to set-up the devices for 
dynamic reconfiguration. I would also suggest stopping by docs.sun.com and 
sunsolve.sun.com and doing a search on dynamic reconfiguration.

Before any board can be "offlined" all activity on that board needs to stop 
i.e down disks and interfaces connected to that board.

Hope this helps.


----Original Message Follows----
From: Stephen Holmes <spholmes at cisco.com>
Reply-To: sunhelp at sunhelp.org
To: sunhelp at sunhelp.org
Subject: [Sunhelp] MOving Disks on E4500
Date: Thu, 06 Jul 2000 12:23:18 +0100

Hi, I hope this is simple.

I have recently inherited an EE4500, prior to this the biggest server I'e
used is an E450.
A look at the disks on the E4500 shows that they're not best positioned for
redundancy
(both parts of a mirror have controllers on the same expansion card).

I'd like to re-organise the disks. No downtime would be an asset, and I
believe that there are hot replacement features on the Ex500 which make
this possible.
Could anybody point me at some relevant comand names, or post some weblinks
so I can RTFM...

Thanks

PS OS is Solaris 2.6..


Steve Holmes		System Administrator
Cisco Systems
Email:		spholmes at cisco.com
Tel:			+44 1236 784 283
Mob:			+44 7730 301 306

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Jarrett Carver           http://www.geocities.com/solarboyz1
solarboyz1 at hotmail.com   Unix/NT Systems Administrator
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