creating idf file for use with idisk

[bill_allen]

I am preparing to mirror the LVM boot disk on an Itanium server under HP-UX 11.23 running MirrorDisk UX. I have instructions for the procedure from this source http://docs.hp.com/en/5991-6481/ch03s04.html#babegeeh

The first step talks about creating the idf file for use with idisk. I thought there was was a more or less automated way to create that idf file to ensure that it is being created with the exact settings to ensure the EFI partition on the mirror is the same as the original disk. Is this the case? If not, how do I verify the proper setting to put in the idf file?

Thanks,
Bill

[Pete Randall]

Bill,

No Itanium here at my site, but I do have another document that may help:

http://docs.hp.com/en/B2355-90950/ch06s02.html#cchgjafa


Pete

[Torsten. · Accepted solution]

Your link goes to the HP-UX 11.31 procedure, but idisk is the same for 11.23 too.

The installer will use the same default settings that you cannot change there:
3
EFI 500MB
HPUX 100%
HPSP 400MB

and normally you won't have a problem with this.

[bill_allen]

Yep, that's right! Those settings were the ones to use. I am just nearly done with the process of getting the lvols mirrored and synced up now.

Thanks!

bill

[Norman_21]

As Torsten pointed out.

I put together a silly script awhile ago to mirror our production IA servers and I'm sharing it with you.

I have used it several times with no issues.

This command shows 3 different partitions:

home/rootlbm > idisk -p /dev/rdsk/c0t6d0
idisk version: 1.31

EFI Primary Header:
Signature = EFI PART
Revision = 0x10000
HeaderSize = 0x5c
HeaderCRC32 = 0x96919a10
MyLbaLo = 0x1
AlternateLbaLo = 0x88bb991
FirstUsableLbaLo = 0x22
LastUsableLbaLo = 0x88bb96e
Disk GUID = 77c61662-0a6b-11dc-8001-d6217b60e588
PartitionEntryLbaLo = 0x2
NumberOfPartitionEntries = 0xc
SizeOfPartitionEntry = 0x80
PartitionEntryArrayCRC32 = 0x416ad088

Primary Partition Table (in 512 byte blocks):
Partition 1 (EFI):
Partition Type GUID = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
Unique Partition GUID = 77c61824-0a6b-11dc-8002-d6217b60e588
Starting Lba = 0x22
Ending Lba = 0xfa021
Partition 2 (HP-UX):
Partition Type GUID = 75894c1e-3aeb-11d3-b7c1-7b03a0000000
Unique Partition GUID = 77c61838-0a6b-11dc-8003-d6217b60e588
Starting Lba = 0xfa022
Ending Lba = 0x87f3821
Partition 3 (HPSP):
Partition Type GUID = e2a1e728-32e3-11d6-a682-7b03a0000000
Unique Partition GUID = 77c61856-0a6b-11dc-8004-d6217b60e588
Starting Lba = 0x87f3822
Ending Lba = 0x88bb821

Hope this help!

[bill_allen]

Thanks guys for all the help. Job done!

:-)