HPE EVA Storage

Operation Failed! when deleting a Virtual Disk in EVA4100

 
SOLVED
Go to solution
twin
Occasional Advisor

Operation Failed! when deleting a Virtual Disk in EVA4100

I created a vdisk with size of 1700GB in our EVA4100 in Continous Access Mode and put it into a DR Group.
Because of block size considerations (ESX Block Size 8MB on vmfs3 volumes larger than 1TB) we want to delete this vdisk, but i get an Operation Failed! with Status Code: 54.

When i try to remove the vdisk as member of my DR Group first, i get the same Error but with Status Code: 51.


Why can't we delete this vdisk ?

Thanks in advance !
13 REPLIES 13
Uwe Zessin
Honored Contributor
Solution

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Don't know why you can't delete the DR_Group / vdisk, but it is not necessary if you just want a new VMFS. You can delete the old datastore in the VI/vSphere client and then use "Add Storage" to create a new one with the desired block size.
.
twin
Occasional Advisor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Thank you.
But we even have to delete the vdisk, too. It should be only for some testing. But now we can't get rid of it :-(.
Uwe Zessin
Honored Contributor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Just found the advisory with the error codes: c01666271

54 means "Vdisk is a DR group member" - which we already know ;-)

51 means "Storage system connection down" - so there seems to be a connectivity problem. Does the CV-EVA server have access to both EVAs and are they BOTH under management ownership of this server (the icon in the left pane must not be grey)?
.
twin
Occasional Advisor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Thank you Uwe,

i'm not in office anymore, so tomorrow i will have a look at this.
Where did you find these advisories ? i searched long time for the EVA Status codes without access.
Uwe Zessin
Honored Contributor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Advisories are part of the product support pages. Unfortunately, there are many products and advisories are sometimes misplaced or the back-end database does not reply with proper results. In this case I found it in the EVA-4400 section last year. I don't know whether it is/was available in the CV-EVA section as well (too lazy to traverse the pages right now ;-)
.
twin
Occasional Advisor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Both EVA's are green in CV and have a "good" connection state.
I already restarted the CV Service and even rebooted the Server. Still getting Status Code: 51 when trying to delete member of DR Group.
All connections seems to be good and i have no idea.....
twin
Occasional Advisor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Hi Uwe,

we could solve the problem by following the steps posted in this thread: http://forums13.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1272436450452+28353475&threadId=1239919

A User posted the following from a HP Supporter:

I had this problem with our two EVA5000.

After talking to a HP guy, he recommended the following procedure to me:

- Change the preferred Path in the VDisk presentation setting to the other controller.
- Now change the setting back to the original controller and try again to remove the vdisk member.

it worked well in my case. I don't know about the reason, but they told me that failing the lun over to the other EVA controller will reinitiate the Continuous Access Data Replication Tunnel.



To me it's a very strange thing and i wonder why this is not listed in any knowledge Bases of HP.

Thank you anyway for your Support, Uwe !
Uwe Zessin
Honored Contributor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

Is this a multi-member DR_Group or is this vdisk the only member?
If you want to delete a vdisk that is the only member of a DR_group, you must delete that DR_group first.
.
twin
Occasional Advisor

Re: Operation Failed! when deleting a Virtual Disk in EVA4100

It is a multi-member group.

Uwe, can you give me advice with ESX, too ?
My problem is, that i have to build a new large volume for our Fileserver, but i don't want to waste so much storage when using small files (Block Size 8 MB !!).
Does it make sense to build smaller Volumes and use several extends ? Or are there performance clues ?
By your Name i guess you are german, too ?