VxVM vxdisk ERROR V-5-1-5433 Device <ctd>: init failed: Disk is not usable
Article ID: 100022087
Updated On:
Description
Error Message
VxVM vxdisk ERROR V-5-1-5433 Device : init failed: Disk is not usable
Cause
Sun require 2 alternate cylinders for backup label but the problem is this disk definition shows that it only has two cylinders due to the size of each cylinder. That leaves vxvm with no cylinders to create its private information on.
Resolution
Hardware Admin to redefine the number of cylinders for the lun assigned to system
Re-run vxdisksetup
Note: VxVM requires at lease one cylinder.
Applies To
Using vxvm debug can assist with determining the root cause.
First set vxvm debug mode to log level 9
vxdctl debug 9
The output of shows the problem is the mode sense page 3 and 4 on the array drives.
The first cds_get_geometry(1) shows the sun disk label
09/28 15:17:21: VxVM vxconfigd DEBUG V-5-1-16172 cds_get_geometry: sector_size1 512 track_size1 16 num_heads1 50 num_cyl1 128 disk_size1 102400
Note: When we initialize a device we dump the label as shown above and compare it to the raw geometry the mode sense on the storage page 3 and 4.
If there is a difference greater than 1% we use the mode sense values on the array to build our dmp records..
The second cds_get_geometry(2) shows the raw geometry mode page 3 &4
09/28 15:17:21: VxVM vxconfigd DEBUG V-5-1-16173 cds_get_geometry: sector_size2 512 track_size2 768 num_heads2 50 num_cyl2 2 disk_size2 76800
* Dimensions: ===Sun Label Values ==== Raw Geometry mode sense page 3& values
* 512 bytes/sector === sector_size1 512 ===== sector_size1 512
* 16 sectors/track === track_size1 16 ===== track_size2 768
* 50 tracks/cylinder = num_heads1 50 ===== num_heads1 50
* 800 sectors/cylinder
* 128 cylinders == num_cyl1 128 ==== num_cyl2 2
* 126 accessible cylinders ___________ _______________ <<<< note "accessible cylinders" is minus 2 total "cylinders"
* ==disk_size1 102400 ==disk_size2 76800
The next line shows that we are going to pick the raw geometry mode sense page 3 and 4
09/28 15:17:21: VxVM vxconfigd DEBUG V-5-1-0 cds_get_geometry: geomp->sector_size 512 geomp->num_heads 50 geomp->num_sectors_per_track 768 geomp->num_cylinders 2
Issue/Introduction
Unable to initialize lun with vxdisksetup
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