12:34 a.m.
Ok I hear what your saying and thank you for your input! By the way this
is a test environment I am working with so I can learn, so there is no
risk for dual brainy-ness. Also I figured out where I was going wrong
earlier on site B, I was clicking "New Domain" instead of "Import
Domain" So I was able to import the replicated iSCSI domain, however now
when I try to attach the storage domain, I get the following in the even
log.
"VDSM jake-ovirt2 command CleanStorageDomainMetaDataVDS failed: Cannot
acquire host id: ('80dcf277-9958-4368-b7dd-2a5d5d29b3ec',
SanlockException(5, 'Sanlock lockspace add failure', 'Input/output
error'))"
It is my opinion that my problem now is that since the data domain was
not properly detached before replication, that my replicated storage
will not attach because of some "lock" on the storage domain?Is that
what this error means or am I missing the mark completely?
On 11/13/2018 02:41 PM, Christopher Cox wrote:
Normally a "replicate" or RAID 1 style scenario is handled
by a SAN
frontend (like IBM's SVC) or some other mirroring mechanism that
presents an abstracted mirrored LUN as a Storage Domain to oVirt.
So, the answer lies with your storage supplier and/or SAN abstractor.
With that said, reading your full text, this would still be likely for
a failover scenario and not a "live/live" scenario. A "live/live"
scenarios risks the problem inherent to two things being "split
brained". And this is usually very bad for non-cluster aware storage
(and the complexity of cluster aware storage could be great in this
case).
On 11/13/18 2:24 PM, Jacob Green wrote:
> So I was testing with two Identical ovirt environments running the
> latest 4.2 environment. I have iscsi storage set up at Site A, and I
> have that same storage replicated to Side B, before I get into
> learning disaster recovery I wanted to see what importing the
> replicated storage would look like. However when I import it I get
> the follow, and the vms are wiped from the replicated storage I
> presented with iscsi.
>
>
> So is this possible with iscsi? Is there another way to go about
> doing this?
>
> My iscsi solution is freenas.
>
>
>
>
>
>
>
>
> --
> Jacob Green
>
> Systems Admin
>
> American Alloy Steel
>
> 713-300-5690
>
>
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--
Jacob Green
Systems Admin
American Alloy Steel
713-300-5690