Veritas Volume Manager (VxVM) vxdg ERROR V-5-1-10127 associating disk-media <media_name> with cXtXdXs2: Disk public region is too small

Article:TECH54603  |  Created: 2007-01-10  |  Updated: 2008-01-12  |  Article URL http://www.symantec.com/docs/TECH54603
Article Type
Technical Solution

Product(s)

Environment

Issue



Veritas Volume Manager (VxVM) vxdg ERROR V-5-1-10127 associating disk-media with cXtXdXs2: Disk public region is too small

Solution



Note A replacement disk should have the same disk geometry as the disk that failed. That is, the replacement disk should have the same bytes per sector, sectors per track, tracks per cylinder and sectors per cylinder, same number of cylinders, and the same number of accessible cylinders.

Use the prtvtoc command to obtain disk information.



1. If the replacement disk is the same size as the disk that failed, confirm that the geometry of the replacement disk is the same, using the prtvtoc command.

Example:

In this example c15t0d22s2 is the replacement disk and c15t0d23s2 is a disk of the same disk group and volume.



Geometry of c15t0d22s2:

# prtvtoc /dev/rdsk/c15t0d22s2
* /dev/rdsk/c15t0d22s2 partition map
*
* Dimensions:
*     512 bytes/sector
*     254 sectors/track
*      20 tracks/cylinder
*    5080 sectors/cylinder
*   13995 cylinders
*   13993 accessible cylinders
* Flags:
*   1: unmountable
*  10: read-only
*
* Unallocated space:
*       First     Sector    Last
*       Sector     Count    Sector
*        5080      5080     10159
*
*                                   First       Sector           Last
* Partition  Tag  Flags    Sector     Count           Sector         Mount Directory
      2         5     01          0          71084440      71084439
      3        15    01          0             5080             5079
      4        14    01       10160      71074280      71084439

Geometry of c15t0d23s2:

# prtvtoc /dev/rdsk/c15t0d23s2
* /dev/rdsk/c15t0d23s2 partition map
*
* Dimensions:
*     512 bytes/sector
*     254 sectors/track
*      20 tracks/cylinder
*    5080 sectors/cylinder
*   13998 cylinders
*   13996 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                                     First        Sector         Last
* Partition  Tag     Flags    Sector     Count          Sector               Mount Directory
      2         5        01          0           71099680    71099679
      3        15       01          0              5080           5079
      4        14       01       5080         71094600    71099679

Although both devices are 33Gs in size, the total number of sectors for c15t0d22s2 calculates is slightly smaller than the total number of sectors for c15t0d23s2.
Since the public region consists of the entire size of the disk (minus the size of the private region),  Volume Manager reports the 'Disk public region is too small' error.


There are two ways to correct this issue:

  • Replace the failed disk with a larger disk.

or

  • Replace the failed disk with a disk consisting of the same geometry.



Supplemental Materials

SourceUMI
ValueV-5-1-10127
Descriptionassociating disk-media with cXtXdXs2: Disk public region is too small

Legacy ID



292880


Article URL http://www.symantec.com/docs/TECH54603


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