Re: hardware or software based disk ownership?

>>>>> "Randy" == Randy Rue <[email protected]> writes:

Randy> gah.

Randy> Previously I added the aggr to the vm_storage SVM on the CLI and then 
Randy> ran vserver show again and only saw the previous aggr listed. Also, if I 
Randy> tried to create a new volume on that SVM in the webUI I only was 
Randy> presented with one option, the original SVM.

Randy> Now when I look in the webUI I can see both aggrs as an option for a new 
Randy> volume. Maybe I just needed to wait for the dust to settle.

Randy> I'm calling this pair of n00b issues resolved (shared aggregates and 
Randy> disk ownership). The painful part is that this n00b has been running 
Randy> toasters for about fifteen years now. For the last five years I've been 
Randy> branching into other things and clearly my toaster skills are aging.

I suspect that someone tried to get a little too smart and limit
VServers to specific aggregates in the mistaken belief that it would
improve performance.

In my environment, all but one of my vservers has '-' for the
aggr-list setting, and the final one has all of my aggregates listed.
So I think the even *better* answer for you, especially if you add
aggregates in the future is to just do:

	   vserver modify -vserver <VSERVER> -aggr-list -

instead for all of your aggregates.

John




Randy> On 7/8/2020 6:34 AM, John Stoffel wrote:
>> 
Randy> I think I may just be looking at a limit of the system. If an
Randy> aggregate is already assigned to one SVM, can it also be
Randy> assigned to another? That is, can two different SVMs access the
Randy> same aggregate?
>> 
>> Yes.  All you should need to do is:
>> 
>> vserver modify -vserver scharp_vm_storage -aggr-list scharpdata,scharp_vm_storage
>> vserver modify -vserver scharpdata -aggr-list scharpdata,scharp_vm_storage
>> vserver modify -vserver scharp_kube -aggr-list scharpdata,scharp_vm_storage
>> 
>> And now all three of your SVMs should be able to create volumes on
>> both aggregates.  You can then test with:
>> 
>> vol create -vserver scharp_vm_storage -aggregate scharpdata -volume \
>> test -size 1g
>> 
>> But if it doesn't, send the full command you used and the output for
>> us to look at with you.
>> 
>> John
>> 
>> 
Randy> Output:
>> 
Randy> netapp4::> vserver modify -vserver scharp_vm_storage -aggr-list scharpdata,scharp_vm_storage
>> 
Randy> netapp4::> vserver show
Randy>                                Admin      Operational Root
Randy> Vserver     Type    Subtype    State      State       Volume     Aggregate
Randy> ----------- ------- ---------- ---------- ----------- ---------- ----------
Randy> netapp4     admin   -          -          -           -          -
Randy> netapp4-a   node    -          -          -           -          -
Randy> netapp4-b   node    -          -          -           -          -
Randy> scharp_kube data    default    running    running     scharp_    scharpdata
Randy>                                                       kube_root
Randy> scharp_vm_storage
Randy>             data    default    running    running     scharp_vm_ scharp_vm_
Randy>                                                       storage_   storage
Randy>                                                       root
Randy> scharpdata  data    default    running    running     scharpdata scharpdata
Randy>                                                       _root
Randy> 6 entries were displayed.
>> 
Randy> netapp4::>
>> 
Randy> On 7/7/2020 2:06 PM, tmac wrote:
>> 
Randy> Something may be getting lost here. Are you able to send any output?
>> 
Randy> --tmac
>> 
Randy> Tim McCarthy, Principal Consultant
>> 
Randy> Proud Member of the #NetAppATeam
>> 
Randy> I Blog at TMACsRack
>> 
Randy> On Tue, Jul 7, 2020 at 4:47 PM Rue, Randy <[email protected]> wrote:
>> 
Randy> I was misremembering from my early days in pre-cluster mode.
>> 
Randy> Forget any mention of disk ownership :)
>> 
Randy> Can an aggregate be used by more than one SVM? If so, how? When I try to
Randy> add the aggregate to the other SVM, the command returns without error
Randy> but vserver show still shows the SVMS and their assigned aggregates
Randy> unchanged.
>> 
Randy> On 7/7/2020 12:10 PM, John Stoffel wrote:
>>>> Randy,
>>>> Check your configuration, you need to assign the aggregates to the
>>>> vservers.
>>>> 
>>>> 
>>>> 
>>>> 
Randy> https://library.netapp.com/ecmdocs/ECMP1196912/html/GUID-5255E7D8-F420-4BD3-AEFB-7EF65488C65C.html
>>>> shows you the steps to take.
>>>> 
>>>>         vserver show -fields aggr-list
>>>> 
>>>>         vserver modify -vserver <vserver> -aggr-list <aggr1>,<aggr2>[,aggrN]
>>>> 
>>>> John
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>>