Re: Automated Flash Copy

Le 28/06/2016 à 19:35, DrFranken a écrit :

That's the way PowerHA does it. You have a set of LUNs that comprise an iASP. When you Start the SVC Session it is reaching out to the SAN and flascopying just the LUNS for that iASP as a consistency group. [Note that previously you must have created the empty LUNS and assigned them to the second partition through a host object on the SAN and through VIOS OR a second set of Fiber Adapters if you're not using PowerVM.

The question that I'm not sure of is the ability to bring that iASP on line with a different LPAR without PowerHA. With PowerHA they are in a cluster so both partitions are aware of that storage. Because of Single Level Store the addresses used for the iASP cannot overlap with addresses in the System ASP. PowerHA assures that's not the case.

7.2 provided some improvements about this point.
Have a look at http://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzaly/rzalyattachiasp.htm
However, it does not look to be automated as needed by Evan.
This is something that I have to test but, unfortunately, it is at the end of the ToDoList...

As far as I understand when reading Infocenter, there is no change in 7.3.

Certainly worth a try as you cannot break anything here but I'm reasonably sure that when you attach that iASP to the second partition it will want you to initialize and format those disks. This would be 'bad' for the libraries on them!


- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 6/27/2016 10:46 PM, Evan Harris wrote:

Hi

thanks for that.

How much complication would I cause myself if I wanted to do a copy of just
ASP#2 so I could move some libraries around between systems using Flash
Copy ? So not a Full System Flash Copy, just a specific set of LUNs.

I'm figuring option (2) would cater for that; presumably it's a matter of
getting keys exchanged and then just running a script ?

On Tue, Jun 28, 2016 at 2:27 PM, DrFranken <midrange@xxxxxxxxxxxx> wrote:

Do this two ways.

1) Using PowerHA. It's basically built into the product. You set it up and
then to do the flashcopy STRSVCSSN and *POOF* flash copy!

2) Completely home grown. You simply SSH over to the SVC and start the
copy then SSH over to the HMC and start up the partition. All automated
with scripts. Effectively do it manually, record the steps needed and then
script them.


- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 6/27/2016 4:50 PM, Evan Harris wrote:

Hi All

does anyone using external storage run a completely automated flash copy
on
their i ?

If so, would you care to share how you accomplished this and what tools
you
are using ?

How difficult was it to set up and how much did the lab services toolkit
assist ?

Any pre-requisites or scenarios I should be aware of if contemplating a
process like this ?

--

This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.

Please contact support@xxxxxxxxxxxx for any subscription related
questions.