Re: tcmu iscsi (failover not supported)

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On 10/10/2018 12:40 PM, Mike Christie wrote:
> On 10/09/2018 05:09 PM, Brady Deetz wrote:
>> I'm trying to replace my old single point of failure iscsi gateway with
>> the shiny new tcmu-runner implementation. I've been fighting a Windows
>> initiator all day. I haven't tested any other initiators, as Windows is
>> currently all we use iscsi for.
>>
>> One issue I've considered is our Ceph cluster is running 12.2.8 but I
>> built my iscsi gateways against 13.2.2 since we will be moving to mimic
>> within the next month or so.
>>
>> I compiled tcmu-runner with default options against 13.2.2 on a fresh
>> fully updated version of centos 7.5.1804 with elrepo kernel 4.18.12-1.
>>
>> syslog:
>> Oct  9 16:55:31 dc1srviscsi01 tcmu-runner: tcmu_get_alua_grp:225
>> rbd/rbd.test_0: Unsupported alua_access_type: Implicit and Explicit
>> failover not supported.
> 
> We do not yet support explicit failover. Did you use targetcli directly
> to set this up or did you use the ceph-iscsi tools?
> 
> If you are using targetlci then you need to set alua_access_type to 1.
> In the rc releases for 1.4.0 we had explicit enabled but there were too
> many bugs and never got to fully QA it so for the final release it was
> disabled.
> 
> If you used the ceph-iscsi tools did you use ansible or gwcli and what
> versions of ceph-iscsi-config and ceph-iscsi-cli or ceph-ansible?

Ignore that. ceph-iscsi-config 2.6 enabled explicit alua in anticipation
for the tcmu-runner support. We are about to release 2.7 which matches
tcmu-runner 1.4.0.
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