Unable to find device id in the device configuration database

This is my experience to resolve the problems. Why this error was happened because of some volume groups was properly not exported from the operating system.


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Previously one volume groups was there and it has some mount points. Get the volume group details from object data manager ODM using vg identifier.

rootvg disk miising has been remove: 0516-304 : Unable to find device

Find out the volume groups details using volume group identifier. So we have find out the some logical volume details but it was not removed from ODM.

We have to get the each logical volume details from ODM and remove the entry also. Notice: It seems you have Javascript disabled in your Browser. In order to submit a comment to this post, please write this code along with your comment: 9fd12bdae8bebad0e.

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When i list out the online volume groups in my Aix server i got the below errors. With the passing time, some devices are added, and some are removed from a system. AIX learns about hardware changes when the root user executes the cfgmgr command. Without any attributes, it scans all buses for any attached devices. Cfgmgr only discovers new devices. Removing devices is achieved with rmdev or odmdelete.

Configuration Parameters

Cfgmgr can be executed in the quiet cfgmgr or verbose cfgmgr -v mode. It can be directed to scan all or selected buses. The basic command to learn about disks is lspv. The first column shows its name followed by the PVID and the volume group it belongs to.

Existence of a PVID indicates possibility of presence of data on the disk. It is possible that such disk belongs to a volume group which is varied off.


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Executing lspv against a disk without a volume group membership does nothing useful: lspv hdisk2 Unable to find device id hdisk2 in the Device configuration database How do you establish the capacity of a disk that does not belong to a volume group? Command lqueryvg helps to establish if there is data on the disk or not.

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Logical volume names are the best proof of this. To display data stored on a disk you can use the command lquerypv. A PVID can be assigned to or removed from a disk if it does not belong to a volume group, by executing the command chdev.

Creating a device manually

You can use command chpv for this purpose. With this in mind, a disk is divided into five bands called: outer, outer-middle, center, inner and inner-edge. This method of assigning physical partitions logical volumes as the function of a band on a disk, is called the intra-physical policy.