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Full Discussion: Help with Multipath
Operating Systems Linux Red Hat Help with Multipath Post 302681269 by mnmonu on Friday 3rd of August 2012 05:15:42 AM
Old 08-03-2012
Quote:
Originally Posted by admin_xor
Looks fine. Is there any error message for path not being detected in /var/log/messages? Also, please post the output of:
Code:
multipath -v3

Hi admin_xor,

Sorry for late reply.
Actually I had some problem.

Please find the attached "multipath - v3" output.
And /var/log/messages output below:
Code:
[root@reuxeuls003 ~]# tail -10f /var/log/messages
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: table: 253:13: multipath: error getting device
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: ioctl: error adding target to table
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: multipath emc: long trespass command will be send
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: multipath emc: honor reservation bit will not be set (default)
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: table: 253:13: multipath: error getting device
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: ioctl: error adding target to table
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: multipath emc: long trespass command will be send
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: multipath emc: honor reservation bit will not be set (default)
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: table: 253:13: multipath: error getting device
Aug  3 09:52:16 reuxeuls003 kernel: device-mapper: ioctl: error adding target to table

 

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THIN_REPAIR(8)						      System Manager's Manual						    THIN_REPAIR(8)

NAME
thin_repair - repair thin provisioning binary metadata from device/file to device/file SYNOPSIS
thin_repair [options] -i {device|file} -o {device|file} DESCRIPTION
thin_repair reads binary thin provisioning metadata created by the respective device-mapper target from one device or file , repairs it and writes it to another device or file. If written to a metadata device , the metadata can be processed by the device-mapper target. -i, --input {device|file} Input file or device with binary metadata. -o, --output {device|file} Output file or device for repaired binary metadata. -h, --help Print help and exit. -V, --version Output version information and exit. EXAMPLE
Reads the binary thin provisioning metadata from file metadata , repairs it and writes it to logical volume /dev/vg/metadata for further processing by the respective device-mapper target: thin_repair -i metadata -o /dev/vg/metadata DIAGNOSTICS
thin_repair returns an exit code of 0 for success or 1 for error. SEE ALSO
thin_dump(8) thin_check(8) thin_restore(8) thin_rmap(8) thin_metadata_size(8) AUTHOR
Joe Thornber <ejt@redhat.com> Heinz Mauelshagen <HeinzM@RedHat.com> Red Hat, Inc. Thin Provisioning Tools THIN_REPAIR(8)
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