On Tue, Sep 4, 2018 at 11:12 PM Nir Soffer <nsof...@redhat.com> wrote:
> On Tue, Sep 4, 2018 at 11:03 PM <g.vasilopou...@uoc.gr> wrote:
>
>> after upgrading to 4.20.39-1.el7 sas multipath stopped being detected
>
>
>> I did a diff to the two files
>>
>> Is the current behaviour the correct one or the previous one ?
>> I think sas multipath should also be detected no ?
>>
>
> It should be detect it this is shared storage that you want to use in oVirt
> It should not be detect if you have local disk using sas.
>
> So we really cannot know.
>
> [root@g1-car0136 etc]# diff multipath.conf multipath.conf.201809031555
>> 1c1
>> < # VDSM REVISION 1.6
>> ---
>> > # VDSM REVISION 1.5
>> 101,109d100
>> < }
>> <
>> < # Whitelist FCP and iSCSI devices.
>> < blacklist {
>> < protocol ".*"
>> < }
>> <
>> < blacklist_exceptions {
>> < protocol "(scsi:fcp|scsi:iscsi)"
>>
>
> oVirt does not officially support sas, but this should work:
>
> protocol "(scsi:fcp|scsi:iscsi|scsi:sas)"
>
> The best way to configure it is to add a dropin configuration file:
>
> $ cat /etc/multipath/conf.d/my.conf
>
> blacklist_exceptions {
> protocol "(scsi:fcp|scsi:iscsi|scsi:sas)"
> }
>
Actually, to enable sas support, you can do this:
# cat /etc/multipath/conf.d/enable-sas.conf
blacklist_exceptions {
protocol "scsi:sas"
}
>
> See also this thread:
>
> https://lists.ovirt.org/archives/list/users@ovirt.org/thread/RFEQ5JK2RZM3Q7U3RDARIV7ZPDMHSPW2/
>
> I suggest you file a bug for this here:
> https://bugzilla.redhat.com/enter_bug.cgi?product=vdsm
>
> Nir
>
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