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тАО01-21-2011 02:03 AM
тАО01-21-2011 02:03 AM
vgextend io error
We have an old HP VA, Surestore 7410 I believe the model is.
A long time ago we had some LUNS created for us by a 3rd party and presented to one of our Servers. The LUNS are 0% used and the disks show as Unused when looking at disk devices in SAM.
I tried to run a vgextend yesterday and it returned an io error on physical device.
I ran an ioscan and the device files are present in /dev/dsk and /dev/rdsk but as stated when running a vgextend that pv to volume group it returns an io error on physical device.
I went into SAM and tried to extend the volume group in there when I receive the following warning;
At least one of the disks you have chosen is larger than the disk size allowed by volume group vgdbDBW (102396 Mbytes). These disks can still be used, but any capacity beyond the volume group limit will be wasted.
Do you want to use these disks anyway?.
-----------------
I cancelled the operation by selection No.
I am not overly confident on HPUX and my skillset is limited so any help or advice would be appreciated. I have got this far without assistance and other than a vgextend I dont think there is much more for me to do.
I didnt want to run the vgextend forcibly just incase my workings out were incorrect on the LUN front even though the pv shows as Unused.
Chad
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тАО01-21-2011 02:40 AM
тАО01-21-2011 02:40 AM
Re: vgextend io error
Regards,
Ani
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тАО01-21-2011 02:49 AM
тАО01-21-2011 02:49 AM
Re: vgextend io error
Please see attached output from vgdisplay of the volume I want to extend.
Chad
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тАО01-21-2011 03:01 AM
тАО01-21-2011 03:01 AM
Re: vgextend io error
Please check whether online JFS is installed or not. #swlist -l product | grep -i jfs.
If you have online JFS then you can extend the file system online(without unmount the file system).
PE Size (Mbytes) 4
Total PE 25596
Alloc PE 20500
Free PE 5096
you have(5096*4)=19.90GB free space.so how much space you want to extend.which file system you want to extend.please put the o/p of #bdf
regards,
Ani
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тАО01-21-2011 03:29 AM
тАО01-21-2011 03:29 AM
Re: vgextend io error
Yes it has onlineJFS installed but I want to extend the Volume Group in readiness for future data growth. I have done an lvextend before and it works fine.
The issue I have is when I run a vgextend (as below) it returns an IO error on physical device.
vgextend /dev/vgdbDBW /dev/dsk/c4t2d5
I worked out that device is LUN number 21 using SAM > Disk Devices, it shows that device as being Unused and not part of LVM.
ioscan displays for that device:
disk 5 0/3/1/0.1.4.0.0.2.5 sdisk CLAIMED DEVICE HP A6218A
/dev/dsk/c4t2d5 /dev/rdsk/c4t2d5
If I try to extend via SAM it pops up with this;
At least one of the disks you have chosen is larger than the disk size allowed by volume group vgdbDBW (102396 Mbytes). These disks can still be used, but any capacity beyond the volume group limit will be wasted.
So I clicked No to cancel the operation.
Basically;
-I need to confirm that this pv is definately Unused?
-If unused how do I extend the Volume Group without error. Have I missed a step as the pv looks to have been created in /dev/dsk and /dev/rdsk.
Regards,
Chad
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тАО01-21-2011 03:39 AM
тАО01-21-2011 03:39 AM
Re: vgextend io error
This is pretty simple i guess
Max PE per PV 25599
VGDA 2
PE Size (Mbytes) 4
=103 Gigs ( 25999 *4 )
You have defined maximum PE/PV (-e) & PE size (-s ) while VG creation so this is the max size of PV that VG can capture.
You can bypass the warning.
Or you need vgcfgmodify to change max PE/PV
for that OS needs to be 11.31 or 11.23 ( with patching.
You need to deactivate the VG to run "vgcfgmodify"
Other wise just bypass if the disk is not much larger then 103 Gigs.
Hope this helps.
Thanks
Manix
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тАО01-21-2011 03:49 AM
тАО01-21-2011 03:49 AM
Re: vgextend io error
I really don't have enough time on HPUX or any flavours of unix to understand it. That makes sense now, pretty simple.
Do you have any thought's on the other issues I described in the thread?
The vgextend io error being one and determining that the PV is definately Unused?
As always, thanks again for the help thus far.
Chad
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тАО01-21-2011 04:57 AM
тАО01-21-2011 04:57 AM
Re: vgextend io error
Nobody knows what command you run exactly and if the command was wrong or not...
Hope this helps!
Regards
Torsten.
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тАО01-21-2011 05:18 AM
тАО01-21-2011 05:18 AM
Re: vgextend io error
It was in one of my later reponses, this is the command I had run.
vgextend /dev/vgdbDBW /dev/dsk/c4t2d5
Chad
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тАО01-21-2011 05:21 AM
тАО01-21-2011 05:21 AM
Re: vgextend io error
Any more questions?
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!