Hello,

We have an A5200 that we want to configure RAID5 using Solstice DiskSuite.  
I have the configuration for this using Soft Partitioning and then setting u
p a SAM-QFS filesystem on this RAID group.

My question is that we have two controllers.  Setting this up points to the 
devices off controller 2. How can I set it up so that if controller 2 fails 
it will automatically go to controller 3 and stay online?

Thanks!

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On Thu, 15 Apr 2004 12:50:11 -0500
jillhughes <jillhughes.14rolm@mail.webservertalk.com> wrote:

>
> Hello,
>
> We have an A5200 that we want to configure RAID5 using Solstice
> DiskSuite.  I have the configuration for this using Soft Partitioning
> and then setting up a SAM-QFS filesystem on this RAID group.
>
> My question is that we have two controllers.  Setting this up points
> to the devices off controller 2. How can I set it up so that if
> controller 2 fails it will automatically go to controller 3 and stay
> online?
>


look up on MPxIO, its included since solaris 9:
man scsi_vhci
howver, this only works with certain controlers since its driver
dependant.

The scsi_vhci driver receives naming and transport  services
from  one  or  more  physical HBA devices. To support multi-
pathing, a physical HBA driver must  comply  with  the  mul-
tipathing  services  provided by this driver. Currently, the
fcp(7D) fibre channel  SCSI  protocol  driver  is  the  only
driver to comply with the services provided by the scsi_vhci
driver.


Otherwise, for older releases sun storage traffic manager.

Or as alternative choice, install Veritas Volumen manger, your A5200
will automaticaly enable the license for vxvm, then you can use VxDMP to
multipath your controlers.



--
Barbie - Prayers are like junkmail for Jesus

I have seen things you lusers would not believe.
I've seen Sun monitors on fire off the side of the multimedia lab.
I've seen NTU lights glitter in the dark near the Mail Gate.
All these things will be lost in time, like the root partition last
week. Time to die.

[ Post a follow-up to this message ]

jillhughes wrote:
>
> Hello,
>
> We have an A5200 that we want to configure RAID5 using Solstice
> DiskSuite.

Before heading for Raid 5 you might like to have a look at

www.baarf.com

> I have the configuration for this using Soft Partitioning
> and then setting up a SAM-QFS filesystem on this RAID group.
>
> My question is that we have two controllers.  Setting this up points to
> the devices off controller 2. How can I set it up so that if controller
> 2 fails it will automatically go to controller 3 and stay online?
>
> Thanks!
>
> --
> jillhughes
> ------------------------------------------------------------------------
> Posted via http://www.webservertalk.com
> ------------------------------------------------------------------------
> View this thread: http://www.webservertalk.com/message181993.html
>

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Oninit Ltd              # Growing old is mandatory
Tel: +44 1436 672201    # Growing up is optional
Fax: +44 1436 678693    #
Mob: +44 7818 003457    #
www.oninit.com          #

[ Post a follow-up to this message ]

In article <jillhughes.14rolm@mail.webservertalk.com>,
jillhughes <jillhughes.14rolm@mail.webservertalk.com> wrote:

> Hello,
>
> We have an A5200 that we want to configure RAID5 using Solstice
> DiskSuite.  I have the configuration for this using Soft Partitioning
> and then setting up a SAM-QFS filesystem on this RAID group.

I wouldn't use Disksuite for RAID5.  My experience has been that
it is very slow especially on large volumes of data.
SDS is great for the boot volumes and simple stripe/mirror configs
but I would recommend either a hardware RAID
controller and/or Veritas Volume Manager if you are considering
a RAID5 configuration.


rachel

--
Rachel Polanskis            Kingswood, Greater Western Sydney, Australia
grove@zeta.org.au           http://www.zeta.org.au/~grove/grove.html
"They who would give up an essential liberty for temporary security,
deserve neither liberty or security" - Benjamin Franklin, 1759

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