HPE EVA Storage

HPUX 11.23 v2 and pvlink EVA4000

 
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H_16
Trusted Contributor

HPUX 11.23 v2 and pvlink EVA4000


How I do see if the disks are same Lun..

Please see my output from IOSCAN



9 REPLIES 9
kirkkak
Advisor

Re: HPUX 11.23 v2 and pvlink EVA4000

Useful tool is evainfo_.., you should find correct version/arch from the CommandView EVA CD

kemo
Trusted Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

hi

in your output

disk 7 -- /dev/rdsk/c3t0d1
disk13 -- /dev/rdsk/c3t0d2

see. c3t0 is common. so these two disks are the same represented LUN

check

diskinfo /dev/rdsk/c3t0d1
diskinfo /dev/rdsk/c3t0d2

thanks
kamal
kemo
Trusted Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

hi

in your output

disk 7 -- /dev/rdsk/c3t0d1
disk13 -- /dev/rdsk/c3t0d2

see. c3t0 is common. so these two disks are """""not""""" the same represented LUN

check

diskinfo /dev/rdsk/c3t0d1
diskinfo /dev/rdsk/c3t0d2

thanks
kamal
Víctor Cespón
Honored Contributor
Solution

Re: HPUX 11.23 v2 and pvlink EVA4000

Hi, just look at the LUN number at the end of the path. It's an EVA8000, so you must have 8 paths to each LUN, and here they are:

1/2/0/0.81.218.128.0.0.1 c3t0d1
1/2/0/0.81.218.192.0.0.1 c4t0d1
1/2/0/0.81.218.255.8.0.1 c5t0d1
1/2/0/0.81.218.255.12.0.1 c6t0d1
1/2/0/0.81.222.128.0.0.1 c7t0d1
1/2/0/0.81.222.192.0.0.1 c8t0d1
1/2/0/0.81.222.255.8.0.1 c9t0d1
1/2/0/0.81.222.255.12.0.1 c10t0d1

The same for 2, 3, 4 and 5
H_16
Trusted Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

Can I just do a pvcreate on one disk and then a vgextend and to the additional disks??
kemo
Trusted Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

hi

for example. i will take one LUN from ur configuration

LUN 1 -- >
/dev/rdsk/c3t0d1 , /dev/rdsk/c4t0d1 , /dev/rdsk/c5t0d1 , /dev/rdsk/c6t0d1 , /dev/rdsk/c7t0d1 , /dev/rdsk/c8t0d1 , /dev/rdsk/c9t0d1 , /dev/rdsk/c10t0d1


these are the paths to the first LUN.

1- pvcreate /dev/rdsk/c3t0d1
2- vgcreate vg01 /dev/rdsk/c3t0d1 /dev/rdsk/c4t0d1 /dev/rdsk/c5t0d1 /dev/rdsk/c6t0d1 /dev/rdsk/c7t0d1 /dev/rdsk/c8t0d1 /dev/rdsk/c9t0d1 /dev/rdsk/c10t0d1


OR if you want to add it to an OLD VG

2- vgextend vgold /dev/rdsk/c3t0d1 /dev/rdsk/c4t0d1 /dev/rdsk/c5t0d1 /dev/rdsk/c6t0d1 /dev/rdsk/c7t0d1 /dev/rdsk/c8t0d1 /dev/rdsk/c9t0d1 /dev/rdsk/c10t0d1

thanks
kamal

NOTE: Don't forget to assign points to who give you the required information



Jozef_Novak
Respected Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

Hello,

yes you're right. Pvcreate is run just on one path and when you vgextend all the other paths, LVM will automatically recognize them and will now that they belong to one single disk.

J.
H_16
Trusted Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

I would have assigned 10 points but you gave me the raw device for the vgextend !!
kemo
Trusted Contributor

Re: HPUX 11.23 v2 and pvlink EVA4000

hi H

i am just giving concept.

Thanks
kamal