On Sun, Apr 16, 2017 at 4:17 AM Dan Yasny <[email protected]> wrote: > When you set up a storage domain, you need to specify a host to perform > the initial storage operations, but once the SD is defined, it's details > are in the engine database, and all the hosts get connected to it directly. > If the first host you used to define the SD goes down, all other hosts will > still remain connected and work. SPM is an HA service, and if the current > SPM host goes down, SPM gets started on another host in the DC. In short, > unless your actual NFS exporting host goes down, there is no outage. >
There is no storage outage, but if you shutdown the spm host, the spm host will not move to a new host until the spm host is online again, or you confirm manually that the spm host was rebooted. Nir > > On Sat, Apr 15, 2017 at 1:53 PM, Konstantin Raskoshnyi <[email protected] > > wrote: > >> Hi Fernando, >> I see each host has direct connection nfs mount, but yes, if main host to >> which I connected nfs storage going down the storage becomes unavailable >> and all vms are down >> >> >> On Sat, Apr 15, 2017 at 10:37 AM FERNANDO FREDIANI < >> [email protected]> wrote: >> >>> Hello Konstantin. >>> >>> That doesn`t make much sense make a whole cluster depend on a single >>> host. From what I know any host talk directly to NFS Storage Array or >>> whatever other Shared Storage you have. >>> Have you tested that host going down if that affects the other with the >>> NFS mounted directlly in a NFS Storage array ? >>> >>> Fernando >>> >>> 2017-04-15 12:42 GMT-03:00 Konstantin Raskoshnyi <[email protected]>: >>> >>>> In ovirt you have to attach storage through specific host. >>>> If host goes down storage is not available. >>>> >>>> On Sat, Apr 15, 2017 at 7:31 AM FERNANDO FREDIANI < >>>> [email protected]> wrote: >>>> >>>>> Well, make it not go through host1 and dedicate a storage server for >>>>> running NFS and make both hosts connect to it. >>>>> In my view NFS is much easier to manage than any other type of >>>>> storage, specially FC and iSCSI and performance is pretty much the same, >>>>> so >>>>> you won`t get better results other than management going to other type. >>>>> >>>>> Fernando >>>>> >>>>> 2017-04-15 5:25 GMT-03:00 Konstantin Raskoshnyi <[email protected]>: >>>>> >>>>>> Hi guys, >>>>>> I have one nfs storage, >>>>>> it's connected through host1. >>>>>> host2 also has access to it, I can easily migrate vms between them. >>>>>> >>>>>> The question is - if host1 is down - all infrastructure is down, >>>>>> since all traffic goes through host1, >>>>>> is there any way in oVirt to use redundant storage? >>>>>> >>>>>> Only glusterfs? >>>>>> >>>>>> Thanks >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Users mailing list >>>>>> [email protected] >>>>>> http://lists.ovirt.org/mailman/listinfo/users >>>>>> >>>>>> >>> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.ovirt.org/mailman/listinfo/users >> >> > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users >
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