Re: [ovirt-users] [ANN] oVirt 4.2.6 is now generally available
by Nir Soffer
On Mon, Sep 3, 2018 at 8:01 PM Fabrice Bacchella <
fabrice.bacchella(a)orange.fr> wrote:
>
> Le 3 sept. 2018 à 18:31, Nir Soffer <nsoffer(a)redhat.com> a écrit :
>
> On Mon, Sep 3, 2018 at 5:07 PM Fabrice Bacchella <
> fabrice.bacchella(a)orange.fr> wrote:
>
>> In the release notes, I see:
>>
>> • BZ 1622700 [downstream clone - 4.2.6] [RFE][Dalton] - Blacklist all
>> local disk in multipath on RHEL / RHEV Host (RHEL 7.5)
>> Feature:
>> Blacklist local devices in multipath.
>>
>> Reason:
>> multipath repeatedly logs irrelevant errors for local devices.
>>
>> Result:
>> Local devices are blacklisted, and no irrelevant errors are logged
>> anymore.
>>
>> What defines a local disk ? I'm using a SAN on SAS. For many peoples, SAS
>> is only for local disks, but that's not the case. Will other 4.2.6 will
>> detect that ?
>>
>
> We don't have any support for SAS.
>
> If you SAS drives are attached to the host using FC or iSCSI, you are fine.
>
>
> Nope, they are attached using SAS.
>
I guess oVirt see them as FCP devices?
Are these disks connected to multiple hosts?
Please share the output of:
vdsm-client Host getDeviceList
...
Where do I find the protocol multipath thinks the drives are using ?
multipath.conf(5) says:
The protocol strings that multipath recognizes are scsi:fcp,
scsi:spi, scsi:ssa, scsi:sbp,
scsi:srp, scsi:iscsi, scsi:sas, scsi:adt, scsi:ata, scsi:unspec,
ccw, cciss, nvme, and
undef. The protocol that a path is using can be viewed by running
multipathd show
paths format "%d %P"
So this should work:
blacklist_exceptions {
protocol "(scsi:fcp|scsi:iscsi|scsi:sas)"
}
The best way to make this change is to create a dropin conf file,
and not touch /etc/multipath.conf, so vdsm will be able to update later.
$cat /etc/multipath/conf.d/local.conf
blacklist_exceptions {
protocol "(scsi:fcp|scsi:iscsi|scsi:sas)"
}
I hope it works for overriding vdsm configuration, if not, you will need to
change /etc/multipath.conf, and mark it as VDSM_PRIVATE like this;
$ head -3 /etc/multipath.conf
# # VDSM REVISION 1.6
# VDSM PRIVATE
Once it works, I suggest to file a bug to support sas disks by default.
Nir
5 years, 7 months
Re: [ovirt-users] Re: [ANN] oVirt 4.2.6 is now generally available
by Nir Soffer
On Mon, Sep 3, 2018 at 5:07 PM Fabrice Bacchella <
fabrice.bacchella(a)orange.fr> wrote:
> In the release notes, I see:
>
> • BZ 1622700 [downstream clone - 4.2.6] [RFE][Dalton] - Blacklist all
> local disk in multipath on RHEL / RHEV Host (RHEL 7.5)
> Feature:
> Blacklist local devices in multipath.
>
> Reason:
> multipath repeatedly logs irrelevant errors for local devices.
>
> Result:
> Local devices are blacklisted, and no irrelevant errors are logged anymore.
>
> What defines a local disk ? I'm using a SAN on SAS. For many peoples, SAS
> is only for local disks, but that's not the case. Will other 4.2.6 will
> detect that ?
>
We don't have any support for SAS.
If you SAS drives are attached to the host using FC or iSCSI, you are fine.
If your drives are connected in another way, you probably need to edit
/etc/multipath.conf.
The current setting is:
blacklist_exceptions {
protocol "(scsi:fcp|scsi:iscsi)"
}
You may need to change this to get multipath to grab these disks.
Nir
>
> BZ 1622700 is private, I can't check it.
>
>
> > Le 3 sept. 2018 à 13:57, Sandro Bonazzola <sbonazzo(a)redhat.com> a écrit
> :
> >
> > The oVirt Project is pleased to announce the general availability of
> oVirt 4.2.6, as of September 3rd, 2018.
> >
> > This update is the sixth in a series of stabilization updates to the 4.2
> series.
> > This is pre-release software. This pre-release should not to be used in
> production.
> >
> > This release is available now for:
> > * Red Hat Enterprise Linux 7.5 or later
> > * CentOS Linux (or similar) 7.5 or later
> >
> > This release supports Hypervisor Hosts running:
> > * Red Hat Enterprise Linux 7.5 or later
> > * CentOS Linux (or similar) 7.5 or later
> >
> > See the release notes [1] for installation / upgrade instructions and
> > a list of new features and bugs fixed.
> >
> > Notes:
> > - oVirt Appliance is available
> > - oVirt Node is available [2]
> > - oVirt Windows Guest Tools is available [2]
> >
> > Additional Resources:
> > * Read more about the oVirt 4.2.6 release highlights:
> http://www.ovirt.org/release/4.2.6/
> > * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt
> > * Check out the latest project news on the oVirt blog:
> http://www.ovirt.org/blog/
> >
> > [1] http://www.ovirt.org/release/4.2.6/
> > [2] http://resources.ovirt.org/pub/ovirt-4.2/iso/
> >
> > --
> > SANDRO BONAZZOLA
> > MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV
> > Red Hat EMEA
> > sbonazzo(a)redhat.com
> >
> >
> >
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5 years, 7 months
