[ovirt-users] Re: [ANN] oVirt 4.2.6 is now generally available
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
<mailto:fabrice.bacchella@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.
What you call SAS is any block device we might want to attach directly and let oVirt
manage. I was doing the same thing on old HPE hardware, using old smart array controlers.
I gave the raw device to ovirt. After an upgrade, it fails as it was
blacklisted. I need to add it to the blacklist exceptions:
cat /etc/multipath/conf.d/enable-sas.conf
blacklist_exceptions {
protocol "cciss"
}
I think your default rule is quite hard, and can brake many existing setup:
multipathd show blacklist
...
protocol rules:
- blacklist:
(config file rule) .*
- exceptions:
(config file rule) (scsi:fcp|scsi:iscsi)
(config file rule) cciss <-- mine
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