multipath issue with scsi
Hi All,
I am seeing following msg in /var/log/messages: Quote:
my understanding of the issue: might be multipath fails to map device but don't know why. please help me understanding the issue. Thanks. |
Quote:
https://forums.oracle.com/forums/thr...readID=2165591 https://access.redhat.com/knowledge/solutions/60885 https://access.redhat.com/knowledge/solutions/78013 https://access.redhat.com/knowledge/...ath/index.html |
Often you have both "local" and "SAN' drives on the same system and you're using multipath for redundancy and performance for the latter. However, multipathd will look at all your disks whether local or SAN so you have modify the multipath configuration so it does NOT try to multipath your local drives. Local drives would include any USB attachments you make. I've seen issues with USB drives not working when plugged in because the daemon tried to manage them.
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Oh yeah, been there, found that ... ;)
Use the blacklist option in multipath.conf eg https://access.redhat.com/knowledge/...procedure.html |
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