topic DSF in Operating System - HP-UX

DSF

Maciej Skalski — Tue, 14 Oct 2008 13:16:25 GMT

Hello,
How to make persistent DFS bindings to new created partition ?

disk 1 0/4/1/0.0.0.2.0 sdisk CLAIMED DEVICE HP DG146BB976
/dev/dsk/c0t2d0 /dev/dsk/c0t2d0s2 /dev/rdsk/c0t2d0 /dev/rdsk/c0t2d0s2
/dev/dsk/c0t2d0s1 /dev/dsk/c0t2d0s3 /dev/rdsk/c0t2d0s1 /dev/rdsk/c0t2d0s3

Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t0d0
/dev/rdisk/disk5 /dev/rdsk/c0t1d0
/dev/rdisk/disk6 /dev/rdsk/c0t3d0
/dev/rdisk/disk6_p1 /dev/rdsk/c0t3d0s1
/dev/rdisk/disk6_p2 /dev/rdsk/c0t3d0s2
/dev/rdisk/disk6_p3 /dev/rdsk/c0t3d0s3
/dev/rdisk/disk7 /dev/rdsk/c0t2d0

Thanks

Re: DSF

James R. Ferguson — Tue, 14 Oct 2008 13:25:26 GMT

Hi:

See:

http://docs.hp.com/en/dsfmigration/persistent_dsf_migration.pdf

http://docs.hp.com/en/LVMmigration1/LVM_Migration_to_Agile.pdf

Regards!

...JRF...

Re: DSF

Fabio Ettore — Tue, 14 Oct 2008 13:30:51 GMT

Hi,

I don't think you need to do something special. please post

ioscan -m lun
strings /etc/lvmtab

Best regards,
Fabio

Re: DSF

Maciej Skalski — Tue, 14 Oct 2008 13:48:35 GMT

OK, I will explain
I have one vg group

--- Physical volumes ---
PV Name /dev/disk/disk6_p2
PV Status available
Total PE 4347
Free PE 2648
Autoswitch On
Proactive Polling On

and I want make software mirror, so I should add another disk do vg group - /dev/disk/disk7_p2, but I have only this in my system:
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t0d0
/dev/rdisk/disk5 /dev/rdsk/c0t1d0
/dev/rdisk/disk6 /dev/rdsk/c0t3d0
/dev/rdisk/disk6_p1 /dev/rdsk/c0t3d0s1
/dev/rdisk/disk6_p2 /dev/rdsk/c0t3d0s2
/dev/rdisk/disk6_p3 /dev/rdsk/c0t3d0s3
/dev/rdisk/disk7 /dev/rdsk/c0t2d0

How to create /dev/rdisk/disk7_p1, ... etc
ioscan it's not enough

Re: DSF

melvyn burnard — Tue, 14 Oct 2008 14:13:44 GMT

so what you ACTUALLY want to do is mirror your boot disk, correct?
If so you need to first partition the disk, setting up the EFI/OS/HPSP partitions, which will create the disk7_p1/p2/p3 devices.
Follow the steps in pages 81-84 of
http://docs.hp.com/en/5992-4589/5992-4589.pdf

Re: DSF

Tim Nelson — Tue, 14 Oct 2008 14:15:57 GMT

You need to follow the directions in the HPU x11.31 admin guide on how to mirror root disks.

disk7 needs to be partitioned in order for the s2 device to exist.

Please read the manual.

http://www.docs.hp.com/en/5992-4589/ch03s04.html#cbddaicd

Re: DSF

Maciej Skalski — Wed, 15 Oct 2008 07:41:52 GMT

I have already read this documentation http://www.docs.hp.com/en/5992-4589/ch03s04.html#cbddaicd.
I did first step, but i can do it again:

bash-3.2# ioscan -m lun
Class I Lun H/W Path Driver S/W State H/W Type Health Description
======================================================================
disk 4 64000/0xfa00/0x0 esdisk CLAIMED DEVICE online HP DG146BB976
0/4/1/0.0x5000c5000c984779.0x0
/dev/disk/disk4 /dev/rdisk/disk4
disk 5 64000/0xfa00/0x1 esdisk CLAIMED DEVICE online HP DG146BB976
0/4/1/0.0x5000c5000c98f781.0x0
/dev/disk/disk5 /dev/rdisk/disk5
disk 6 64000/0xfa00/0x2 esdisk CLAIMED DEVICE online HP DG146BB976
0/4/1/0.0x5000c5000c990f49.0x0
/dev/disk/disk6 /dev/disk/disk6_p2 /dev/rdisk/disk6 /dev/rdisk/disk6_p2
/dev/disk/disk6_p1 /dev/disk/disk6_p3 /dev/rdisk/disk6_p1 /dev/rdisk/disk6_p3
disk 7 64000/0xfa00/0x3 esdisk CLAIMED DEVICE online HP DG146BB976
0/4/1/0.0x5000c5000c983b39.0x0
/dev/disk/disk7 /dev/rdisk/disk7
bash-3.2# ioscan -e -H 0/4/1/0.0x5000c5000c983b39.0x0
bash-3.2# ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t0d0
/dev/rdisk/disk5 /dev/rdsk/c0t1d0
/dev/rdisk/disk6 /dev/rdsk/c0t3d0
/dev/rdisk/disk6_p1 /dev/rdsk/c0t3d0s1
/dev/rdisk/disk6_p2 /dev/rdsk/c0t3d0s2
/dev/rdisk/disk6_p3 /dev/rdsk/c0t3d0s3
/dev/rdisk/disk7 /dev/rdsk/c0t2d0

And nothing, still I don't see partition in Persistent DSF, but there are three pratition on disk:

disk 1 0/4/1/0.0.0.2.0 sdisk CLAIMED DEVICE HP DG146BB976
/dev/dsk/c0t2d0 /dev/dsk/c0t2d0s2 /dev/rdsk/c0t2d0 /dev/rdsk/c0t2d0s2
/dev/dsk/c0t2d0s1 /dev/dsk/c0t2d0s3 /dev/rdsk/c0t2d0s1 /dev/rdsk/c0t2d0s3

And information about partition:
bash-3.2# idisk -p /dev/rdsk/c0t2d0
idisk version: 1.44

EFI Primary Header:
Signature = EFI PART
Revision = 0x10000
HeaderSize = 0x5c
HeaderCRC32 = 0x1eb15cc2
MyLbaLo = 0x1
MyLbaHi = 0x0
AlternateLbaLo = 0x1117732f
AlternateLbaHi = 0x0
FirstUsableLbaLo = 0x40
FirstUsableLbaHi = 0x0
LastUsableLbaLo = 0x111772ff
LastUsableLbaHi = 0x0
Disk GUID = f9755dd8-99e6-11dd-8000-d6217b60e588
PartitionEntryLbaLo = 0x2
PartitionEntryLbaHi = 0x0
NumberOfPartitionEntries = 0xc
SizeOfPartitionEntry = 0x80
PartitionEntryArrayCRC32 = 0xc213bd71

Primary Partition Table (in 512 byte blocks):
Partition 1 (EFI):
Partition Type GUID = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
Unique Partition GUID = f9755ffe-99e6-11dd-8000-d6217b60e588
Starting Lba Lo = 0x40
Starting Lba Hi = 0x0
Ending Lba Lo = 0xf9fff
Ending Lba Hi = 0x0
Partition 2 (HP-UX):
Partition Type GUID = 75894c1e-3aeb-11d3-b7c1-7b03a0000000
Unique Partition GUID = f9756012-99e6-11dd-8000-d6217b60e588
Starting Lba Lo = 0xfa000
Starting Lba Hi = 0x0
Ending Lba Lo = 0x110af7ff
Ending Lba Hi = 0x0
Partition 3 (HPSP):
Partition Type GUID = e2a1e728-32e3-11d6-a682-7b03a0000000
Unique Partition GUID = f9756026-99e6-11dd-8000-d6217b60e588
Starting Lba Lo = 0x110af800
Starting Lba Hi = 0x0
Ending Lba Lo = 0x111772ff
Ending Lba Hi = 0x0

Re: DSF

Duncan Edmonstone — Wed, 15 Oct 2008 07:47:21 GMT

If that's what you ran, then you ran "ioscan -e" when you should have run "insf -e"

Read the notes again carefully...

HTH

Duncan

Re: DSF

Maciej Skalski — Wed, 15 Oct 2008 07:53:06 GMT

Sorry, I did it too fast
bash-3.2# insf -e -H 0/4/1/0.0x5000c5000c983b39.0x0
bash-3.2# ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t0d0
/dev/rdisk/disk5 /dev/rdsk/c0t1d0
/dev/rdisk/disk6 /dev/rdsk/c0t3d0
/dev/rdisk/disk6_p1 /dev/rdsk/c0t3d0s1
/dev/rdisk/disk6_p2 /dev/rdsk/c0t3d0s2
/dev/rdisk/disk6_p3 /dev/rdsk/c0t3d0s3
/dev/rdisk/disk7 /dev/rdsk/c0t2d0

But still is the same

Re: DSF

Duncan Edmonstone — Wed, 15 Oct 2008 08:04:08 GMT

Try just:

insf -e

with no other options...

What'd the output of:

idisk -p /dev/rdisk/disk7

HTH

Duncan

Re: DSF

Maciej Skalski — Wed, 15 Oct 2008 08:15:52 GMT

after insf -e all looks good:

Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk4 /dev/rdsk/c0t0d0
/dev/rdisk/disk4_p3 /dev/rdsk/c0t0d0s3
/dev/rdisk/disk4_p1 /dev/rdsk/c0t0d0s1
/dev/rdisk/disk4_p2 /dev/rdsk/c0t0d0s2
/dev/rdisk/disk5 /dev/rdsk/c0t1d0
/dev/rdisk/disk6 /dev/rdsk/c0t3d0
/dev/rdisk/disk6_p1 /dev/rdsk/c0t3d0s1
/dev/rdisk/disk6_p2 /dev/rdsk/c0t3d0s2
/dev/rdisk/disk6_p3 /dev/rdsk/c0t3d0s3
/dev/rdisk/disk7 /dev/rdsk/c0t2d0
/dev/rdisk/disk7_p2 /dev/rdsk/c0t2d0s2
/dev/rdisk/disk7_p3 /dev/rdsk/c0t2d0s3
/dev/rdisk/disk7_p1 /dev/rdsk/c0t2d0s1

BIG Thanks !!!