errors in dmesg command

[S.S.]

Hi,

For one of my Linux server. I have found the following errors in dmesg command.

device-mapper: dm-multipath: Failing path 8:160.
device-mapper: dm-multipath: Failing path 8:176.
device-mapper: dm-multipath: Failing path 8:224.
device-mapper: dm-multipath: Failing path 8:240.
device-mapper: dm-multipath: Failing path 8:80.
device-mapper: dm-multipath: Failing path 8:0.
cdrom: open failed.
cdrom: open failed.
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root

May i know the criticality and impact of this or else should i ignore them.

Thanks.

[Michal Kapalka (mikap) · Accepted solution]

hi,.

check the multipath status of the array.

mikap

[Kapil Jha]

multipath -ll

check if all are fine.if not check if there is some physical connectivity issue.Seems its wronf only for one fc.

BR,
Kapil+

[S.S.]

Checked the Multipath status and it is active.

Thank you.