> Le 3 sept. 2018 à 18:31, Nir Soffer <nsof...@redhat.com> a écrit :
>
> On Mon, Sep 3, 2018 at 5:07 PM Fabrice Bacchella <fabrice.bacche...@orange.fr
> <mailto:fabrice.bacche...@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.
In /dev/disk, they show as:
ls -l /dev/disk/by-*/*:16
lrwxrwxrwx 1 root root 9 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:1:16 -> ../../sdc
lrwxrwxrwx 1 root root 9 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:2:16 -> ../../sds
lrwxrwxrwx 1 root root 10 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:3:16 -> ../../sdai
lrwxrwxrwx 1 root root 10 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:4:16 -> ../../sdaz
lrwxrwxrwx 1 root root 10 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:5:16 -> ../../sdbq
lrwxrwxrwx 1 root root 10 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:6:16 -> ../../sdar
lrwxrwxrwx 1 root root 10 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:7:16 -> ../../sdch
lrwxrwxrwx 1 root root 10 Sep 3 18:01
/dev/disk/by-path/pci-0000:87:00.0-scsi-0:2:8:16 -> ../../sdcv
ls -l /dev/disk/by-* | grep sdcv
lrwxrwxrwx 1 root root 10 Sep 3 18:01 scsi-3600c0ff0002631c42168f15601000000
-> ../../sdcv
lrwxrwxrwx 1 root root 10 Sep 3 18:01 wwn-0x600c0ff0002631c42168f15601000000
-> ../../sdcv
lrwxrwxrwx 1 root root 10 Sep 3 18:01 pci-0000:87:00.0-scsi-0:2:8:16 ->
../../sdcv
>
> 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)"
>
>
> }
>
Where do I find the protocol multipath thinks the drives are using ?
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