Lrwxrwxrwx 1 root root 0 May 22 18:29 host1 ->.
Lrwxrwxrwx 1 root root 0 May 22 18:29 host0 ->.
#Tes3cmd multipatch command how to#
how to Check the HBA port name on your Linux box The mapping is done using /etc/multipath/bindings. `-+- policy=’service-time 0′ prio=0 status=enabled |-+- policy=’service-time 0′ prio=0 status=active Size=359G features=’1 queue_if_no_path’ hwhandler=’0′ wp=rw With user_friendly name disabled we will only see the WWID of the multipath connectedģ624a937079ebbf3c903141360001149c dm-2 PURE ,FlashArray By default, the name of a multipath device is set to its WWID.Īlternately, you can set the user_friendly_names option in the multipath configuration file, which sets the alias to a nodeunique name of the form mpathn This is an alternate command which can be used to check the loaded configuration for selected values as shown below.Įach multipath device has a World Wide Identifier (WWID), which is guaranteed to be globally unique and unchanging. # systool -c fc_host -v How to get the HBA port name on Linuxĭevice = “host1” Show the existing multipath configuration in brief NOTE: systool is delivered with sysfsutils rpm so make sure it is installed before using this tool. Systool uses APIs provided by libsysfs to gather information and will give detailed information about the available HBA and the LUN status # multipathd show config How to Get complete HBA details on Linux NOTE: This multipath must not be in used state Show the existing multipath configuration in detail on Linuxīelow command will show the existing configuration loaded on your Linux box Next flush the selected multipath using below command `-+- policy=’service-time 0′ prio=10 status=enabled | |- 1:0:0:0 sda 8:0 active ready running |-+- policy=’service-time 0′ prio=50 status=active Size=186G features=’1 queue_if_no_path’ hwhandler=’0′ wp=rw # multipath -F Flush/Remove selected multipath deviceįirst of all the the WWID of the multipath device which you want to flush using multipath -llģ600c0ff00013b88fdc53e35a01000000 dm-0 PURE ,P2000 G3 FC `- 13:0:1:249 sdas 66:192 active ready runningīelow value explains what each field meansįlush/Remove all the multipath device on Linux `-+- policy=’queue-length 0′ prio=1 status=active Size=1.0T features=’0′ hwhandler=’0′ wp=rw In multipath output we see below highlighted entry being used (and also in the commands above you would see similar representation)ģ624a937079ebbf3c903141360001149c dm-9 PURE ,FlashArray /sdd How does Device ID work in multipath? The same can be seen via below command where LUN to device mapping does easier on the eyes
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