[ovirt-users] iSCSI Multipathing -> host inactive

[InterNetX - Juergen Gotteswinter]

Am 25.08.2016 um 08:42 schrieb Uwe Laverenz:
> Hi Jürgen,
> 
> Am 24.08.2016 um 17:15 schrieb InterNetX - Juergen Gotteswinter:
>> iSCSI & Ovirt is an awful combination, no matter if multipathed or
>> bonded. its always gambling how long it will work, and when it fails why
>> did it fail.
>>
>> its supersensitive to latency, and superfast with setting an host to
>> inactive because the engine thinks something is wrong with it. in most
>> cases there was no real reason for.
>>
>> we had this in several different hardware combinations, self built
>> filers up on FreeBSD/Illumos & ZFS, Equallogic SAN, Nexenta Filer
>>
>> Been there, done that, wont do again.
> 
> Thank you, I take this as a warning. :)
> 
> For my testbed I chose to ignore the iSCSI-bond feature and change the
> multipath default to round robin instead.
> 
> What kind of storage do you use in production? Fibre channel, gluster,
> ceph, ...?

>>
>> we had this in several different hardware combinations, self built
>> filers up on FreeBSD/Illumos & ZFS, Equallogic SAN, Nexenta Filer

currently, iscsi multipathed with solaris based filer as backend. but
this is already in progress of getting migrated to a different, less
fragile, plattform. ovirt is nice, but too bleeding edge and way to much
acting like a girly

> 
> thanks,
> Uwe
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