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Testing the process to expand a disk group, need asistance

Hello,

I am fairly new to this Veritas storage world here, so please be patient with me...

I was tasked to expand vx disk groups from 1 trb to 2 trb on a Prod, Test, Dev server before a new client comes on board.

I created a new disk group to test the process in order to get it clean before I attacked the real deal.

The new disk group is dg_acpdev which has 2 disks part of it, but I can't get the maxsize nor can I get these 2 to look at one disk...I have searched online and have seen several resize commands but none of them work. 

bash-3.2# vxprint -g dg_acpdev                                                                                                 
TY NAME         ASSOC        KSTATE   LENGTH   PLOFFS   STATE    TUTIL0  PUTIL0                                                
dg dg_acpdev    dg_acpdev    -        -        -        -        -       -                                                     
                                                                                                                               
dm dg_acpdev_d01 emc1_3ac1   -        35281408 -        -        -       -                                                     
dm dg_acpdev_d02 emc1_3a7c   -        70640128 -        -        -       -                                                     
                                                                                                                               
v  dgacpdev     fsgen        ENABLED  35280896 -        ACTIVE   -       -                                                     
pl dgacpdev-01  dgacpdev     ENABLED  35280896 -        ACTIVE   -       -                                                     
sd dg_acpdev_d01-01 dgacpdev-01 ENABLED 35280896 0      -        -       -                                                     
                                                                                                                               
v  volspec      fsgen        ENABLED  62914560 -        ACTIVE   -       -                                                     
pl volspec-01   volspec      ENABLED  62914560 -        ACTIVE   -       -                                                     
sd dg_acpdev_d02-01 volspec-01 ENABLED 62914560 0       -        -       - 

 

1 Solution

Accepted Solutions
Accepted Solution!

Re: Testing the process to expand a disk group, need asistance

Your 2 disks, emc1_3ac1 and emc1_3a7c were added to the diskgroup. There sizes are as per below output.

dm dg_acpdev_d01 emc1_3ac1   -        35281408 -        -        -       -                                                     
dm dg_acpdev_d02 emc1_3a7c   -        70640128 -        -        -       -             

On those two disks you created 2 volumes,  dgacpdev and volspec (352808096 and 62914560)

v  dgacpdev     fsgen        ENABLED  35280896 -        ACTIVE   -       -                                                     
pl dgacpdev-01  dgacpdev     ENABLED  35280896 -        ACTIVE   -       -                                                     
sd dg_acpdev_d01-01 dgacpdev-01 ENABLED 35280896 0      -        -       -                                                     
                                                                                                                               
v  volspec      fsgen        ENABLED  62914560 -        ACTIVE   -       -                                                     
pl volspec-01   volspec      ENABLED  62914560 -        ACTIVE   -       -                                                     
sd dg_acpdev_d02-01 volspec-01 ENABLED 62914560 0       -        -       - 

If you want increase there is a very very small amount of left, but nothing that will impress anyone.

 

In this scenario, you'll need to more luns to be added to the diskgroup. Then  you can run vxassist -g dg_acpdev -r maxzise to see how much you can growby.

 

You can then use, vxassist / vxresize to increase the respective volume.

 

View solution in original post

2 Replies

Re: Testing the process to expand a disk group, need asistance

Hi Acpratico,

Your problem seems to be the sub-disk (LUNs) that are fully utilized.

bash-3.2# vxprint -g dg_acpdev                                                                                                
TY NAME         ASSOC        KSTATE   LENGTH   PLOFFS   STATE    TUTIL0  PUTIL0                                               
dg dg_acpdev    dg_acpdev    -        -        -        -        -       -                                                    
                                                                                                                              
dm dg_acpdev_d01 emc1_3ac1   -        35281408 -        -        -       -                                                    
dm dg_acpdev_d02 emc1_3a7c   -        70640128 -

You have one volume using one disk:

v  dgacpdev     fsgen        ENABLED  35280896 -        ACTIVE   -       -                                                    
pl dgacpdev-01  dgacpdev     ENABLED  35280896 -        ACTIVE  

And another volume using the other disk:

v  volspec      fsgen        ENABLED  62914560 -        ACTIVE   -       -                                                    
pl volspec-01   volspec      ENABLED  62914560 -        ACTIVE  

 

In short - you do not have any free disk space to use for expansion.

Accepted Solution!

Re: Testing the process to expand a disk group, need asistance

Your 2 disks, emc1_3ac1 and emc1_3a7c were added to the diskgroup. There sizes are as per below output.

dm dg_acpdev_d01 emc1_3ac1   -        35281408 -        -        -       -                                                     
dm dg_acpdev_d02 emc1_3a7c   -        70640128 -        -        -       -             

On those two disks you created 2 volumes,  dgacpdev and volspec (352808096 and 62914560)

v  dgacpdev     fsgen        ENABLED  35280896 -        ACTIVE   -       -                                                     
pl dgacpdev-01  dgacpdev     ENABLED  35280896 -        ACTIVE   -       -                                                     
sd dg_acpdev_d01-01 dgacpdev-01 ENABLED 35280896 0      -        -       -                                                     
                                                                                                                               
v  volspec      fsgen        ENABLED  62914560 -        ACTIVE   -       -                                                     
pl volspec-01   volspec      ENABLED  62914560 -        ACTIVE   -       -                                                     
sd dg_acpdev_d02-01 volspec-01 ENABLED 62914560 0       -        -       - 

If you want increase there is a very very small amount of left, but nothing that will impress anyone.

 

In this scenario, you'll need to more luns to be added to the diskgroup. Then  you can run vxassist -g dg_acpdev -r maxzise to see how much you can growby.

 

You can then use, vxassist / vxresize to increase the respective volume.

 

View solution in original post