Boot disk

[j773303]

I have 2 disk c0t1d0 and c1t1d0 in the VG00,
c1t1d0 is a mirror boot disk. Does anyone knows which disk is the boot disk currently ?
Which way can show the system is boot by which disk ? Thanks.

[John Palmer · Accepted solution]

Hi,

Run setboot this will display the primary and alternate boot paths.

man setboot

Regards,
John

[Simon Hargrave]

Yes, you can do it with adb: -

echo 'boot_string/s' | adb /stand/vmunix /dev/mem

This will show you the boot string, which will include the hardware path of the disk. You can then match this to device file with your choice of ioscan or lvlnboot -v

[Franky_1]

Hi,

you can type "setboot" and look for primary and alternate bootpath
Then type a ioscan -fnC disk and you'll see under the column H/W Path which disk is the current boot disk and which disk is the mirrored one

Regards

Franky

[Sยภเl Kย๓คг]

Using setboot command is the best option for you
regards
SK

[Sunil Sharma_1]

Hi,
setoot will give you information about primary and alternat boot path and if system booted automatically, without manual intervention, primery path will be the disk where system booted.

Sunil

[Simon Hargrave]

path ACTUALLY booted from isn't shown by setboot. This will show primary and alternate, however if an admin did "bo alt" to boot, setboot will not show this.

The only way to see the ACTUAL disk used to boot is with the adb command above (unless the server has just booted it may be at the top of dmesg output).