The problem here is the DMP device tree is confused after reboot and that is 
due to the disk.info

The clean up DMP device tree:

1. rm /etc/vx/disk.info
2. rm /dev/vx/dmp/*
3. rm /dev/vx/rdmp/*
4. vxconfigd -k




----- Original Message ----
From: joel <j...@saldino.net>
To: veritas-vx@mailman.eng.auburn.edu
Sent: Saturday, 18 July, 2009 11:27:06 AM
Subject: [Veritas-vx] vxdisk path question/concern

So I had an issue the other night where a disk was bad and replaced.  
Not sure why this happened but for some reason it seemed that all the 
drives on my array dropped off the scsi bus thus taking down the entire 
thing and locking up the box.  On reboot everything was lost as far as 
the disk groups but a co-worker was able to recover.  The drive in 
question that was bad was sde in a goup of 16 disks.  The new drive is 
installed but for some reason the path is all wonky now.

[r...@p02cd01 ~]# vxdisk list
DEVICE       TYPE            DISK         GROUP        STATUS
cciss/c0d0   auto:none       -            -            online invalid
sda          auto:cdsdisk    silo2dg01    silo2dg      online nohotuse
sdb          auto:cdsdisk    silo2dg02    silo2dg      online nohotuse
sdc          auto:cdsdisk    silo2dg03    silo2dg      online nohotuse
sdd          auto:cdsdisk    silo2dg04    silo2dg      online nohotuse
sde          auto:cdsdisk    silo2dg06    silo2dg      online nohotuse
sdf          auto            -            -            error
sdg          auto:cdsdisk    silo2dg07    silo2dg      online nohotuse
sdh          auto:cdsdisk    silo2dg08    silo2dg      online nohotuse
sdi          auto:cdsdisk    silo2dg09    silo2dg      online nohotuse
sdj          auto:cdsdisk    silo2dg10    silo2dg      online nohotuse
sdk          auto:cdsdisk    silo2dg11    silo2dg      online nohotuse
sdl          auto:cdsdisk    silo2dg12    silo2dg      online nohotuse
sdm          auto:cdsdisk    silo2dg13    silo2dg      online nohotuse
sdn          auto:cdsdisk    silo2dg14    silo2dg      online nohotuse
sdo          auto:cdsdisk    silo2dg15    silo2dg      online nohotuse
sdp          auto:cdsdisk    silo2dg16    silo2dg      online nohotuse
-            -         silo2dg05    silo2dg      removed nohotuse was:sde

[r...@p02cd01 ~]# vxdisk path
SUBPATH                     DANAME               DMNAME      
GROUP        STATE
cciss/c0d0                  cciss/c0d0           -            
-            ENABLED    
sda                         sda                  silo2dg01    
silo2dg      ENABLED    
sdb                         sdb                  silo2dg02    
silo2dg      ENABLED    
sdc                         sdc                  silo2dg03    
silo2dg      ENABLED    
sdd                         sdd                  silo2dg04    
silo2dg      ENABLED    
sdf                         sde                  silo2dg06    
silo2dg      ENABLED    
sde                         sdf                  -            
-            ENABLED    
sdg                         sdg                  silo2dg07    
silo2dg      ENABLED    
sdh                         sdh                  silo2dg08    
silo2dg      ENABLED    
sdi                         sdi                  silo2dg09    
silo2dg      ENABLED    
sdj                         sdj                  silo2dg10    
silo2dg      ENABLED    
sdk                         sdk                  silo2dg11    
silo2dg      ENABLED    
sdl                         sdl                  silo2dg12    
silo2dg      ENABLED    
sdm                         sdm                  silo2dg13    
silo2dg      ENABLED    
sdn                         sdn                  silo2dg14    
silo2dg      ENABLED    
sdo                         sdo                  silo2dg15    
silo2dg      ENABLED    
sdp                         sdp                  silo2dg16    
silo2dg      ENABLED    

[r...@p02cd01 ~]# vxdisk list sdf
Device:    sdf
devicetag: sdf
type:      auto
flags:     online error private autoconfig
errno:     Disk is not usable
Multipathing information:
numpaths:   1
sde    state=enabled

[r...@p02cd01 ~]# vxdisk list sde
Device:    sde
devicetag: sde
type:      auto
hostid:    opsdev1.internal.piczo.com
disk:      name=silo2dg06 id=1219276096.30.opsdev1.internal.piczo.com
group:     name=silo2dg id=1219276137.52.opsdev1.internal.piczo.com
info:      format=cdsdisk,privoffset=256,pubslice=3,privslice=3
flags:     online ready private autoconfig nohotuse autoimport imported
pubpaths:  block=/dev/vx/dmp/sde3 char=/dev/vx/rdmp/sde3
version:   3.1
iosize:    min=512 (bytes) max=65535 (blocks)
public:    slice=3 offset=2304 len=143366528 disk_offset=0
private:   slice=3 offset=256 len=2048 disk_offset=0
update:    time=1247816427 seqno=0.28
ssb:       actual_seqno=0.0
headers:   0 240
configs:   count=1 len=1280
logs:      count=1 len=192
Defined regions:
config   priv 000048-000239[000192]: copy=01 offset=000000 enabled
config   priv 000256-001343[001088]: copy=01 offset=000192 enabled
log      priv 001344-001535[000192]: copy=01 offset=000000 enabled
lockrgn  priv 001536-001679[000144]: part=00 offset=000000
Multipathing information:
numpaths:   1
sdf    state=enabled

Anyone have any ideas on how to approach this situation?

Thanks

~joel
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