topic errors in dmesg command in Operating System - Linux

errors in dmesg command

S.S. — Fri, 05 Mar 2010 08:07:19 GMT

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.

Re: errors in dmesg command

Michal Kapalka (mikap) — Fri, 05 Mar 2010 08:26:32 GMT

hi,.

check the multipath status of the array.

mikap

Re: errors in dmesg command

Kapil Jha — Mon, 08 Mar 2010 03:20:00 GMT

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+

Re: errors in dmesg command

S.S. — Tue, 16 Mar 2010 04:28:05 GMT

Checked the Multipath status and it is active.

Thank you.