Device-mapper Multipath configuration for Sun 6180 Storage Array (RDAC)
(Doc ID 1500644.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle VM - Version 3.1.1 to 3.2.1 [Release OVM31 to OVM32]
You want to fix the following issue for Oracle VM Server when Sun 6180 Storage Array is connected as shared, external storage via FC-SAN.
- Booting Oracle VM Server takes extremely long time (i.e. 30 minutes, depending on the environment)
- Slow access, or intermittent disconnect to the storage is experienced,which may cause further issues like the followings.
Indication of such symptom can be displayed from /var/log/messages, like the following for each volume:
kernel: sd 7:0:0:1: [sdd] Sense Key : Illegal Request [current]
kernel: sd 7:0:0:1: [sdd] <
kernel: sd 7:0:0:1: [sdd] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00
kernel: end_request: I/O error, dev sdd, sector 0
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