rootvg and hardware raid1


 
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Operating Systems AIX rootvg and hardware raid1
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Old 09-11-2009
rootvg and hardware raid1

Good Morning,

We have a JS22 blade that we will be loading AIX5.3 onto it. We just discovered that the JS22 will only support one drive, so we are planning on booting this blade from the Fiber Channel SAN. Orginally we used 2 physical drives and set up RAID 1 and presented the logical drive to the JS22. The consultant that is setting up the system told us that this would not work for rootvg and that in order for the system to work properly AIX needs to see both drives. I have limited knowledge of unix/linux, but i find it hard to believe that a hardware based raid solution would not work. Can anyone shed any light on this for me?

Thanks
G
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fence_egenera(8)					      System Manager's Manual						  fence_egenera(8)

NAME
fence_egenera - I/O Fencing agent for the Egenera BladeFrame SYNOPSIS
fence_egenera [OPTION]... DESCRIPTION
fence_egenera is an I/O Fencing agent which can be used with the Egenera BladeFrame. It logs into a control blade (cserver) via ssh and operates on a processing blade (pserver) identified by the pserver name and the logical process area network (LPAN) that it is in. fence_egenera requires that ssh keys have been setup so that the fence_egenera does not require a password to authenticate. Refer to ssh(8) for more information on setting up ssh keys. fence_egenera accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent. fence_egenera can also be run by itself with command line options. Vendor URL: http://www.egenera.com OPTIONS
-c cserver The cserver to ssh to. cserver can be in the form user@hostname to specify a different user to login as. -u user Login name. Default login name is 'root' -h Print out a help message describing available options, then exit. -l lpan the lpan to operate on -o action The action required. reboot (default), off, on or status. -p pserver the pserver to operate on -f seconds Wait X seconds before fencing is started -q quite mode. suppress output. -V Print out a version message, then exit. STDIN PARAMETERS
action = < param > The action required. reboot (default), off, on or status. user = < param > Login name. Default login name is 'root' agent = < param > This option is used by fence_node(8) and is ignored by fence_apc. cserver = < param > The cserver to ssh to. cserver can be in the form user@hostname to specify a different user to login as. lpan = < param > The lpan to operate on pserver = < param > The pserver to operate on esh = < param > The path to the esh command on the cserver (default is /opt/panmgr/bin/esh) delay = < param > Wait X seconds before fencing is started SEE ALSO
fence(8), fence_node(8), ssh(8) fence_egenera(8)