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Full Discussion: How to Cleanup Multipathing
Operating Systems Linux Red Hat How to Cleanup Multipathing Post 302532876 by Tirmazi on Wednesday 22nd of June 2011 09:34:43 AM
Old 06-22-2011
How to Cleanup Multipathing
I have a server running redhat 5.5 and it has one SAN device presented to it as LUN9. How can I clean up the remaining entries. I cannot afford to interupt the service. Please assist.

Code:
[root@whatever_server device]# multipath -l
mpath0 (36000097000019260298953666633436) dm-11 EMC,SYMMETRIX
[size=40G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
 \_ 2:0:0:9     sda 8:0   [active][undef]
 \_ 3:0:0:9     sdb 8:16  [active][undef]
 \_ 2:0:0:32777 sdc 8:32  [active][undef]
 \_ 2:0:0:32793 sdd 8:48  [active][undef]
 \_ 3:0:0:32777 sde 8:64  [active][undef]
 \_ 3:0:0:32793 sdf 8:80  [active][undef]
 \_ 2:0:0:36873 sdg 8:96  [active][undef]
 \_ 2:0:0:36889 sdh 8:112 [active][undef]
 \_ 3:0:0:36873 sdi 8:128 [active][undef]
 \_ 3:0:0:36889 sdj 8:144 [active][undef]
 \_ 2:0:0:40969 sdk 8:160 [active][undef]
 \_ 2:0:0:40985 sdl 8:176 [active][undef]
 \_ 3:0:0:40969 sdm 8:192 [active][undef]
 \_ 3:0:0:40985 sdn 8:208 [active][undef]
 \_ 2:0:0:45065 sdo 8:224 [active][undef]
 \_ 3:0:0:45065 sdp 8:240 [active][undef]
 \_ 2:0:0:45081 sdq 65:0  [active][undef]
 \_ 3:0:0:45081 sdr 65:16 [active][undef]

Last edited by pludi; 06-22-2011 at 10:41 AM..
 

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LEARN ABOUT DEBIAN

oss_userdev

oss_userdev(7)							    OSS Devices 						    oss_userdev(7)

NAME

       oss_userdev - OSS client/server audio pseudo device.

NOTICE

       This  audio  device  is not designed to be used as-is by the users. It requires a specially designed server application that implements the
       actual service (please see the OSS programming documentation for more info). The server application will then create the audio devices that
       can be used to record and/or play audio.

DESCRIPTION

       The  oss_userdev  driver is a special purpose loop back audio device that can be used when implementing OSS audio devices based on a server
       running in the background.

OPTIONS

       o  userdev_visible_clientnodes=0|1 By default (0) common client device node (/dev/oss/oss_userdev0/client) will be created for  all  server
	  instances. The clients will then get directed to the right instance based on some search criteria (for example UID). This alternative is
	  best when using single server application that can serve large number of different sesions.

       If this option is set to 1 then OSS will create separate client device nodes for each instance. Applications will have to  open	the  right
       device nodes. This alternative is best when oss_userdev is used to create different kind of services in one system. In this way for example
       a VoIP link can be accessed by opening a different device node than when opening some other service.

FILES

       /etc/oss4/conf/oss_userdev.conf
	      Device configuration file.

AUTHOR

       4Front Technologies

								 16 December 2012						    oss_userdev(7)
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