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Home > Archive > Data Storage > August 2004 > Using EMC PowerPath for LUNs in Hitachi 9585 storage array ??
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| Author |
Using EMC PowerPath for LUNs in Hitachi 9585 storage array ??
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| FreeDiver 2004-07-29, 2:45 am |
| To Whom It May Concern :
We have two Solaris 2.8 SUN servers (E6500 & SunFire F6800) which run
PowerPath VERSION: 2.1.0_b100 and PowerPath VERSION: 3.0.3_b030
repectively. Both servers have Veritas Oracle DB Edition 3.5 (i.e.,
VxVM & VxFS) with DMP enabled. Certain paths to controllers have been
suppressed under Veritas and they are in turn controlled by PowerPath.
We need to migrate all Veritas volumes from existing EMC FC4700
Clariions to Hitachi 9585 array for these 2 servers.
My questions are below :
- Does EMC PowerPath software support load-balancing and fail-over for
LUNs in Hitachi 9585 storage array ??
- Can we re-use our current version of PowerPath software to manage
the LUNs in Hitachi 9585 storage array ??
- If not, what version of PowerPath do we need to upgrade to 4.2, 4.3,
etc ?? Could we do "direct" upgrade without going thru intermediate
steps for our current version of PowerPath ??
- If we can't use any version of PowerPath softrware to manage the
luns in Hitachi 9585 array, Could you tell me what the procedure is to
remove the PowerPath and all power devices for both server.
THANKS,
Bill
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| On 28 Jul 2004 21:08:17 -0700, freedive999@hotmail.com (FreeDiver)
wrote:
>
>- Does EMC PowerPath software support load-balancing and fail-over for
>LUNs in Hitachi 9585 storage array ??
From Powerpath 4.3 Release Notes Hitachi 9970V, 9980V, 9910 and 9960
are supported for multipathing and load balancing. No other models
mentioned. This means EMC has not tested this, a RPQ can help.
>- Can we re-use our current version of PowerPath software to manage
>the LUNs in Hitachi 9585 storage array ??
No ,support for non EMC arrays was introduced in Version 4.x as far as
I recall
>
>- If not, what version of PowerPath do we need to upgrade to 4.2, 4.3,
>etc ?? Could we do "direct" upgrade without going thru intermediate
>steps for our current version of PowerPath ??
The Product manaul for 4.3 states you can upgrade directly from 2.1
and 3.0.x, no intermediate steps necessary
>
>- If we can't use any version of PowerPath softrware to manage the
>luns in Hitachi 9585 array, Could you tell me what the procedure is to
>remove the PowerPath and all power devices for both server.
Have a look in your manual for Powerpath, there is a "Removing
Powerpath" section in there. If you can't find the manual anymore try
powerlink.emc.com or ask EMCs customer service - all manuals are
available in pdf.
HTH
Frank
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| Jesper Monsted 2004-07-29, 5:45 pm |
| Frank <pfy@gmx.net> wrote in news:njjig09m6dhu3809ott590jf4ldr69ghdr@
4ax.com:
> Have a look in your manual for Powerpath, there is a "Removing
> Powerpath" section in there. If you can't find the manual anymore try
> powerlink.emc.com or ask EMCs customer service - all manuals are
> available in pdf.
pkgrm EMCpower;
that's about all 
--
/Jesper Monsted
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| On 29 Jul 2004 22:44:07 GMT, Jesper Monsted
<newsspam@rootweiler.dk.invalid> wrote:
>Frank <pfy@gmx.net> wrote in news:njjig09m6dhu3809ott590jf4ldr69ghdr@
>4ax.com:
>
>
>pkgrm EMCpower;
>
>that's about all
To remove the software, of course. If you're using emcpower devices
somewhere you have to do some reconfig before that.
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| FreeDiver schrieb:
> To Whom It May Concern :
>
> We have two Solaris 2.8 SUN servers (E6500 & SunFire F6800) which run
> PowerPath VERSION: 2.1.0_b100 and PowerPath VERSION: 3.0.3_b030
> repectively. Both servers have Veritas Oracle DB Edition 3.5 (i.e.,
> VxVM & VxFS) with DMP enabled. Certain paths to controllers have been
> suppressed under Veritas and they are in turn controlled by PowerPath.
>
> We need to migrate all Veritas volumes from existing EMC FC4700
> Clariions to Hitachi 9585 array for these 2 servers.
>
> My questions are below :
>
> - Does EMC PowerPath software support load-balancing and fail-over for
> LUNs in Hitachi 9585 storage array ??
>
> - Can we re-use our current version of PowerPath software to manage
> the LUNs in Hitachi 9585 storage array ??
>
> - If not, what version of PowerPath do we need to upgrade to 4.2, 4.3,
> etc ?? Could we do "direct" upgrade without going thru intermediate
> steps for our current version of PowerPath ??
>
> - If we can't use any version of PowerPath softrware to manage the
> luns in Hitachi 9585 array, Could you tell me what the procedure is to
> remove the PowerPath and all power devices for both server.
>
> THANKS,
>
> Bill
You do not need Powerpath if you allready have got Veritas DMP. Update
your ASL and you should be able to use the Thunder.
If you are doing loadbalancing, tkae in mind, that midrange system can
only load balance on the same controller, but you need a path to the
other controller for failover reasons.
so you had to setuo 4 paths.
but don't care. if you buy the thunder, there is implementation
included. so they can help you with all those setuop stuff.
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