Le 3 sept. 2018 à 18:31, Nir Soffer <nsoffer@redhat.com> a écrit :
On Mon, Sep 3, 2018 at 5:07 PM Fabrice Bacchella <fabrice.bacchella@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.
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 ?