[HPADM] Re: SUMMARY- Identify the disk which server booted ( on mirror pair)

Thanks to Michal Kapalka and Dave A


1. Simple way ,

dmesg | grep Boot

or try syslog ( if dmesg buffer is full)

grep Boot /var/adm/syslog/syslog.log

Both will give the HW path of the disk booted .

vmunix: Boot device's HP-UX HW path is: 1/0/0/3/0.6.0

if you need to find the device name from this path
(including efi hw path),

ioscan -efnkH 1/0/0/3/0.6.0
Class I H/W Path Driver S/W State H/W
Type Description
=======================================================================
disk 3 1/0/0/3/0.6.0 sdisk CLAIMED DEVICE
HP 36.4GST336753LC
/dev/dsk/c4t6d0
/dev/dsk/c4t6d0s2 /dev/rdsk/c4t6d0
/dev/rdsk/c4t6d0s2
/dev/dsk/c4t6d0s1
/dev/dsk/c4t6d0s3 /dev/rdsk/c4t6d0s1
/dev/rdsk/c4t6d0s3

Acpi(HWP0002,100)/Pci(3|0)/Scsi(Pun6,Lun0)/HD(Part1,Sig2EB7B300-DAE1-11DA-8002-D6217B60E588)/\EFI\HPUX\HPUX.EFI


2. adb way

echo "bootdev/x"|adb -n /stand/vmunix /dev/kmem

this will give you minor number of the booted disk .

do a list of dsk devices and grep for this minor
number .

0x1f046002 --> output from adb . take last 6
charectors only (046002 )

ll /dev/dsk/* | grep 046002

brw-r----- 1 bin sys 31 0x046002 May
14 12:01 /dev/dsk/c4t6d0s2


-vinod


--- vinod kumar <vinodkumarmp@xxxxxxxxx> wrote:

How do I identify the disk which server booted from
on a mirror root disk .

Ex: I have 2 disks in vg00 , /dev/dsk/c0t6d0 and
c4t6d0 .

Say if I boot the server manually from HA path ( ie
c4t6d0 ) , after server comes to munti usermode ,
how
to confirm the disk it booted is from c4t6d0 .

The reason I am curius about this is on IA , disk HW
path on EFI are different ( like Pnu5,Lun6 ... ) .

Thanks
-vinod




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