How do I disable Mpio in AIX?
How do I disable Mpio in AIX?
Use the vxmpio utility to disable or enable MPIO for devices with the specified product ID (pid). You must reboot the system for the changes to take effect. When you disable MPIO, the specified devices are claimed under the Veritas Dynamic Multi-Pathing driver after the reboot.
What is Mpio in AIX?
Since AIX 5.2, a default AIX installation is capable for path management and this feature is called MPIO (MPIO is an acronym for Multipath I/O, which is a mutlipathing solution.) MPIO allows a disk to have multiple paths, but it has only 1 entry per hdisk in the ODM.
How do I know if my MPIO is enabled in AIX?
The lsmpio command displays information about AIX® MPIO storage devices. This command can be used only for AIX MPIO storage devices that are controlled by path-control modules (PCMs) that are enabled for the lsmpio command support. Some AIX® MPIO storage devices do not support the lsmpio command queries.
How do I find my AIX LUN ID?
Answer
- This command will show the NetApp WWPN, AIX hdisk, NetApp LUN ID: aix-cn22:/# lscfg |grep NetApp.
- This command will show what Fibre Channel (FC) adapter is installed on this AIX server: aix-cn22:/ lsdev -C |grep FC.
- This command will show you the WWPN of the FC adapter: aix-cn22:/# lscfg -vl fcs0.
- FILER:
How do I find multipath in Windows?
Multipath verification for Windows hosts
- Open Disk Management.
- Right-click each disk for which you want to verify the multiple paths and then click Properties.
- On the MPIO tab, in the Select the MPIO policy list, click all the paths that are active.
- Open Windows command prompt.
- Run mpclaim.exe –v c:\multipathconfig.
What is path in AIX?
The lspath command displays one of two types of information about paths to an MPIO capable device. It either displays the operational status for one or more paths to a single device, or it displays one or more attributes for a single path to a single MPIO capable device.
What is Aixpcm?
AIXPCM provides path management functions and health checks. The health checks allow AIXPCM to check the paths and determine which paths are usable for sending I/O, enable failed paths once they are returned to service and to check for unused paths that would be used if a failover occurred.
How can I check iSCSI status in AIX?
Procedure
- Select Devices.
- Select iSCSI.
- Select iSCSI Protocol Device.
- Select Change / Show Characteristics of an iSCSI Protocol Device.
- Verify that the Initiator Name value is correct.
- The Maximum Targets Allowed field corresponds to the maximum number of iSCSI targets that can be configured.
How do I check my MPIO policy?
Procedure
- Open Disk Management.
- Right-click each disk for which you want to verify the multiple paths and then click Properties.
- On the MPIO tab, in the Select the MPIO policy list, click all the paths that are active.
- Open Windows command prompt.
- Run mpclaim.exe –v c:\multipathconfig.
Can you use lsmpio command on AIX MPIO?
This command can be used only for AIX MPIO storage devices that are controlled by path-control modules (PCMs) that are enabled for the lsmpio command support. Some AIX® MPIO storage devices do not support the lsmpio command queries. However, all AIX MPIO storage devices support Path operational status queries.
What does the Q flag do in Aix MPIO?
The -q flag of the lsmpio command causes the AIX MPIO to query the device, by using Small Computer System Interface (SCSI) commands to retrieve and display information about the attached device. Because each queried device is opened and queried by using SCSI commands, this operation might take time to run for many devices.
How to disable or enable Aix native multi-path I / O ( MPIO )?
* Clearly AIX native MPIO multipathing is active; VxVM DMP is just a passenger. hdisk0 U9117.MMB.1017B7P-V6-C430-T1-W50050763090386B5-L0 MPIO Other FC SCSI Disk Drive
How to manage disk drivers in Aix PCM?
The manage_disk_drivers command allows administrators to choose between different Path Control Modules (PCMs), or between using a PCM and configuring the disks as non-MPIO disks. It is the easiest and less intrusive method for transitioning from SDDPCM to AIX MPIO default PCM.