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тАО08-23-2007 05:45 AM
тАО08-23-2007 05:45 AM
I'm very new to HP-UX.
My server rx6600 have IR volume setup.
1. vgdisplay -v vg00 is showing 8 logical volumes created on c1t1d0s2 physical volume.
2. sasmgr get_info -D /dev/sasd0 -q raid is showing /dev/rdsk/c1t1d0 drive in raid 1.
3. Following is the output of ioscan -fnC disk:
disk 1 0/4/1/0.0.0.1.0 sdisk CLAIMED DEVICE HP IR Volume
/dev/dsk/c1t1d0 /dev/rdsk/c1t1d0
/dev/dsk/c1t1d0s1 /dev/rdsk/c1t1d0s1
/dev/dsk/c1t1d0s2 /dev/rdsk/c1t1d0s2
/dev/dsk/c1t1d0s3 /dev/rdsk/c1t1d0s3
My doubt is :
1. what are the c1t1d0s1 c1t1d0s2 and c1t0d0s3 entries in the ioscan output?
2. why the vgdisplay command is showing c1t1d0s2 as the physical volume. shouldn't it show c1t1d0 there?
Thanks alot in advance.
best regards!!!
Solved! Go to Solution.
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тАО08-23-2007 05:55 AM
тАО08-23-2007 05:55 AM
SolutionThis disk has partitions (normal for an Integrity boot disk). The "sx" stands for the partition number.
s1 ... EFI boot partition
s2 ... HP-UX partition
s3 ... HP Service partition
Hope this helps!
Regards
Torsten.
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тАО08-23-2007 06:11 AM
тАО08-23-2007 06:11 AM
Re: Query about IR Volumes
This setup is as a result of the proliant like hardware that ships in this system. I like hardware raid, it takes i/o off the system and gets it done without using normal OS resources.
c1t1d0s2 is showing as a physical volume because it is a partition not done by the OS but presented to the OS by the hardware. It is one physical disk, partitioned to have three sections.
In older systems without hardware raid the first and third partitions are on the boot disk and are not visible to the ioscan command like this.
In summary, just a new way HP decided to do things.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО08-23-2007 06:22 AM
тАО08-23-2007 06:22 AM
Re: Query about IR Volumes
Actually this is the first i have a HP-UX server, otherwise i was working on Sun.
As the system came pre installed, i want to try reinstalling HP-UX on the server so as to get an idea about installing it.So if i reinstall then will it ask me about the sizes of EFI boot, HP-UX and HP Service partition?
Also what are the default, recomended filsystems to be created and their default and recomended sizes?
I hope during installation i can create logical volumes as i have only 2 HDD on my system right now.
Please guide me..
thanks alot!!
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тАО08-23-2007 06:24 AM
тАО08-23-2007 06:24 AM
Re: Query about IR Volumes
Sorry, but this is not true.
The partitions are always visible. The IR is just a hardware mirror of a "normal" boot disk.
This is an example from a "normal" rx8620 - the boot disk:
disk 1 3/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 73.4GMAU307
3NC
/dev/dsk/c0t6d0 /dev/rdsk/c0t6d0
/dev/dsk/c0t6d0s1 /dev/rdsk/c0t6d0s1
/dev/dsk/c0t6d0s2 /dev/rdsk/c0t6d0s2
/dev/dsk/c0t6d0s3 /dev/rdsk/c0t6d0s3
SEP, do you already have an Integrity?
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО08-23-2007 06:36 AM
тАО08-23-2007 06:36 AM
Re: Query about IR Volumes
you can even access the EFI partition from HP-UX, start to read here:
http://docs.hp.com/en/B2355-60105/efi_ls.1M.html
To see a picture of the disk layout, see
Figure 3-1 Example LVM Disk Layout on an HP Integrity Server
on this link
http://docs.hp.com/en/5991-6481/ch03s04.html#cbddaicd
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО08-23-2007 06:42 AM
тАО08-23-2007 06:42 AM
Re: Query about IR Volumes
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тАО08-23-2007 06:49 AM
тАО08-23-2007 06:49 AM
Re: Query about IR Volumes
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тАО08-23-2007 06:51 AM
тАО08-23-2007 06:51 AM
Re: Query about IR Volumes
It does not ask, it is using the defaults.
>> Also what are the default, recomended filsystems to be created and their default and recomended sizes?
The installer will set the default sizes. It is up to you to change them.
>>I hope during installation i can create logical volumes as i have only 2 HDD on my system right now.
You can adjust the number and size of LVOL at installation time. You can also increase the size of most of the LVOLs and add new LVOLs later.
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!