Filesystem with one disk size 130GB

[Muda Ikhsan_1]

Hi my system is B.11.00 U 9000/800

I try to make one temporary space with 130GB in size, i'm using EMC and configure 1 disk with 130GB size, and new disk created i can see in my HPUX.

Problem is when creating Vg , the vgcreate complain that the size is too large. how can i overcome this.

Thank you

[Hein van den Heuvel · Accepted solution]

This has been discussed many times before.
You needs to adjust the pe_size and/or number of pe's to make it fit.

Google for: +vgcreate +pe_size +site:itrc.hp.com

sample result:

From document #KBRC00000716:

Since the LVM data structures must fit into a single extent on the disk, the file too large error occurs when the extent size is smaller than the LVM data structures.

As disks continue to increase in size, there is not enough room in the header files to create a table large enough to track all the physical extents.

Reduce the size of the LVM data structure by reducing the maximum number of logical volumes the volume group can contain (max_lv), the maximum number of physical volumes the volume group can contain (max_pv), the size of the physical extents (pe_size), or any combination thereof.

vgcreate -l (number of max logical volumes) -p (number of max physical volumes) -s (size in megabytes of physical extent) /dev/vg## /dev/dsk/c#t#d#

By default, these parameters are set to:

max_lv 255
max_pv 16
pe_size 4MB


max_pe = 65535

Good luck,
Hein.

[Hoang Chi Cong_1]

Hi

The cause: Size of the VG is less than the physical volume.

When you create a VG, the maximum of pv can be caculate by the "Max PE per PV" and the "PE Size" in Mbytes: Max PE per PV*PE Size = Maximum of pv that can be create under this vg.
In your case, you have to create a vg like:

#vgcreate -e 9000 -s 16 /dev/vgxx /pv name

For more detail, you can see on the manpage of vgcreate command.

Goodluck
Hoang Chi Cong

[Arunvijai_4]

Hi,

You can check any of these threads for more information,

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=180192
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=888147
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=90527&admit=-682735245+1139457594115+28353475

-Arun

[jjh_1]

Default PE size of the VG is too small.
You must increase the MAX PE size or PE size.

MAX PE : 65535 maximum.
PE SIZE(MB) : 4, 8, 16, 32, 64 .....

#vgcreate -e 65535 /dev/vgxx /pv name

[Nguyen Anh Tien]

Hi.
Your current "MAX PE" and "PE SIZE" are too small. it limit the size of that disk(130GB).
YOu have to delete vg and re-create this vg. Aware that:
1,Max PE per PVxPE Size = Maximum capacity of vg.
2, set MAXPE per PV higher as you need
tienna

[Devender Khatana]

Hi,

In simple terms you need to increase PE_Size parameter to achive this. The default PE Size in 11.00 is perhaps 4MB and is not enough to allocate this much large disks. Make it atleast 32 MB and also manually increase MAX_PE_PER_PV parameter to around 7000.

This will allow you to add larger than 130GB LUNs to this VG later on if required.

HTH,
Devender