re : disk mirroring for hpux 11.31

[Vincent_5]

Hi Guys,
Assuming if you base on the attach output of a rx server. What is disk2's device file and what is disk2_p2 device file???

Please advice

Regards
Vincent

[Torsten. · Accepted solution]

I guess you already know about the new mass storage stack in 11.31.
So you are aware of the new device files.

I would recommend to use them for mirroring (/dev/disk/diskx).

To translate, run

ioscan -m dsf

and you will see how the "old" and "new" device files belong together.

a disk2_p2 is the same as , let's say c1t2d0s2 - refer to the ioscan command.

[Vincent_5]

Hi Torsen,
Thanks for the info, so in this case what should be input on this command below for disk2 with referrence to the output

idisk -f /tmp/idf -w /dev/rdisk/disk2

disk 1 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 36.4GST336754LC

/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
/dev/dsk/c2t0d0s1 /dev/rdsk/c2t0d0s1

/dev/dsk/c2t0d0s2 /dev/rdsk/c2t0d0s2

/dev/dsk/c2t0d0s3 /dev/rdsk/c2t0d0s3

disk 2 0/1/1/0.1.0 sdisk CLAIMED DEVICE HP 36.4GST336754LC

/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0

/dev/dsk/c2t1d0s1 /dev/rdsk/c2t1d0s1

/dev/dsk/c2t1d0s2 /dev/rdsk/c2t1d0s2

/dev/dsk/c2t1d0s3 /dev/rdsk/c2t1d0s3


Please advice???

Regards
Vincent

[Torsten.]

Yes - already in the post above!



ioscan -m dsf


to translate.
Again, you should use the "new" device files!
Read this too:
http://docs.hp.com/en/5991-6481/ch01s04.html#bhchdjde

(Legacy Device Files versus Persistent Device Files)

[Torsten.]

The result will look similar to this:

$ ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t1d0
/dev/rdisk/disk5 /dev/rdsk/c0t0d0
/dev/rdisk/disk5_p1 /dev/rdsk/c0t0d0s1
/dev/rdisk/disk5_p2 /dev/rdsk/c0t0d0s2
/dev/rdisk/disk5_p3 /dev/rdsk/c0t0d0s3

[Vincent_5]

Hi Torsen,
Thanks I understand now.

Regards
Vincent

[Torsten.]

... and your results should look like this at the end (of course with *your* device files):

# vgdisplay -v vg00
...
...
--- Physical volumes ---
PV Name /dev/disk/disk5
PV Status available
Total PE 4341
Free PE 0
Autoswitch On

PV Name /dev/disk/disk6
PV Status available
Total PE 4341
Free PE 0
Autoswitch On


#lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/disk/disk5 -- Boot Disk
/dev/disk/disk6 -- Boot Disk
Boot: lvol1 on: /dev/disk/disk5
/dev/disk/disk6
Root: lvol3 on: /dev/disk/disk5
/dev/disk/disk6
Swap: lvol2 on: /dev/disk/disk5
/dev/disk/disk6
Dump: lvol2 on: /dev/disk/disk5, 0


#strings /etc/lvmtab
/dev/vg00
/dev/disk/disk5
/dev/disk/disk6

#setboot
Primary bootpath : 0/1/1/0.0x0.0x0 (/dev/rdisk/disk5)
Alternate bootpath : 0/1/1/1.0x2.0x0 (/dev/rdisk/disk6)

[Vincent_5]

Hi
Sorry to bother you again, when I try to do the mirroring, it don't seems to be able to see the persistent device file .

Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t1d0
/dev/rdisk/disk5 /dev/rdsk/c0t0d0
/dev/rdisk/disk5_p1 /dev/rdsk/c0t0d0s1
/dev/rdisk/disk5_p2 /dev/rdsk/c0t0d0s2
/dev/rdisk/disk5_p3 /dev/rdsk/c0t0d0s3

how to see the device file /dev/rdisk/disk4


Pls help

Regards
Vincent

[Torsten.]

The legacy device file is here:

/dev/rdisk/disk4 /dev/rdsk/c0t1d0

After you run "idisk" and "insf" you should see the "*_p1/2/3" entries.