Ops Center

Hello

I'm making an assumption here. It seems like a shared host group was used, when the volume got provisioned?!

This is the only case where I can see this happening. If this is as I suspect, then yes it would unpresent to all the servers in the shared host group if removed from the host group this is true for both HCS and Administrator.

You should not used shared host groups, each server should be it's own entity for this reason. Can you maybe show the volume in the host group and confirm that it is the case?

You have 2 options in this case depending on what you want to do:

• Do you want to unpresent all the volumes to one of the servers? If so, you go into the host groups in administrator(by going to the storage Array > Host groups) and remove the WWWN of the host from host group. But be careful, as this will unpresent ALL the volumes from that host group to the server. 
• If you want to fix this, you'll have to do it path by path, and hope the failover works, best would be in a maintenance slot(since you can only have one WWWN one a port at a time in a host group). You can also possibly zone some new ports and fix this on the new ports and then delete the host groups on the old ports to complete the cleanup.

------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara
------------------------------

many thanks for to the point answer but it doesn't apply to HCS we can select and upresent the  vols of single server from cluster
yes we have shared host group but it doesn't apply to HCS we can remove luns from single server in cluster in hcs
so i think we can use the way you suggested to remove all luns whether cluster or not , depending on the request
from host group for decommissioning ,its easy to remove wwpns rather that unallocating vols if we need to decomm

------------------------------
dhruv kalia
System Administrator
EVRY AB
------------------------------

Original Message:
Sent: 12-12-2022 13:08
From: William Jansen van Nieuwenhuizen
Subject: Unallocate vols for single server drom cluster in ops center admin

Hello

I'm making an assumption here. It seems like a shared host group was used, when the volume got provisioned?!

This is the only case where I can see this happening. If this is as I suspect, then yes it would unpresent to all the servers in the shared host group if removed from the host group this is true for both HCS and Administrator.

You should not used shared host groups, each server should be it's own entity for this reason. Can you maybe show the volume in the host group and confirm that it is the case?

You have 2 options in this case depending on what you want to do:

• Do you want to unpresent all the volumes to one of the servers? If so, you go into the host groups in administrator(by going to the storage Array > Host groups) and remove the WWWN of the host from host group. But be careful, as this will unpresent ALL the volumes from that host group to the server. 
• If you want to fix this, you'll have to do it path by path, and hope the failover works, best would be in a maintenance slot(since you can only have one WWWN one a port at a time in a host group). You can also possibly zone some new ports and fix this on the new ports and then delete the host groups on the old ports to complete the cleanup.

------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara
------------------------------

Hello Dhruv

Thanks for marking the above response as the best answer.
Just for completeness sake you can navigate to Host Groups under storage as an example in Administrator. Click the Edit but and remove the WWN of the host that you want to take out:


------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara
------------------------------

Original Message:
Sent: 12-13-2022 03:01
From: dhruv kalia
Subject: Unallocate vols for single server drom cluster in ops center admin

many thanks for to the point answer but it doesn't apply to HCS we can select and upresent the  vols of single server from cluster
yes we have shared host group but it doesn't apply to HCS we can remove luns from single server in cluster in hcs
so i think we can use the way you suggested to remove all luns whether cluster or not , depending on the request
from host group for decommissioning ,its easy to remove wwpns rather that unallocating vols if we need to decomm

------------------------------
dhruv kalia
System Administrator
EVRY AB
------------------------------


Original Message:
Sent: 12-12-2022 13:08
From: William Jansen van Nieuwenhuizen
Subject: Unallocate vols for single server drom cluster in ops center admin

Hello

I'm making an assumption here. It seems like a shared host group was used, when the volume got provisioned?!

This is the only case where I can see this happening. If this is as I suspect, then yes it would unpresent to all the servers in the shared host group if removed from the host group this is true for both HCS and Administrator.

You should not used shared host groups, each server should be it's own entity for this reason. Can you maybe show the volume in the host group and confirm that it is the case?

You have 2 options in this case depending on what you want to do:

• Do you want to unpresent all the volumes to one of the servers? If so, you go into the host groups in administrator(by going to the storage Array > Host groups) and remove the WWWN of the host from host group. But be careful, as this will unpresent ALL the volumes from that host group to the server. 
• If you want to fix this, you'll have to do it path by path, and hope the failover works, best would be in a maintenance slot(since you can only have one WWWN one a port at a time in a host group). You can also possibly zone some new ports and fix this on the new ports and then delete the host groups on the old ports to complete the cleanup.

------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara

No problem sir i did that for the unwanted server port by port

------------------------------
dhruv kalia
System Administrator
EVRY AB
------------------------------

Original Message:
Sent: 12-13-2022 04:08
From: William Jansen van Nieuwenhuizen
Subject: Unallocate vols for single server drom cluster in ops center admin

Hello Dhruv

Thanks for marking the above response as the best answer.
Just for completeness sake you can navigate to Host Groups under storage as an example in Administrator. Click the Edit but and remove the WWN of the host that you want to take out:


------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara
------------------------------


Original Message:
Sent: 12-13-2022 03:01
From: dhruv kalia
Subject: Unallocate vols for single server drom cluster in ops center admin

many thanks for to the point answer but it doesn't apply to HCS we can select and upresent the  vols of single server from cluster
yes we have shared host group but it doesn't apply to HCS we can remove luns from single server in cluster in hcs
so i think we can use the way you suggested to remove all luns whether cluster or not , depending on the request
from host group for decommissioning ,its easy to remove wwpns rather that unallocating vols if we need to decomm

------------------------------
dhruv kalia
System Administrator
EVRY AB


Original Message:
Sent: 12-12-2022 13:08
From: William Jansen van Nieuwenhuizen
Subject: Unallocate vols for single server drom cluster in ops center admin

Hello

I'm making an assumption here. It seems like a shared host group was used, when the volume got provisioned?!

This is the only case where I can see this happening. If this is as I suspect, then yes it would unpresent to all the servers in the shared host group if removed from the host group this is true for both HCS and Administrator.

You should not used shared host groups, each server should be it's own entity for this reason. Can you maybe show the volume in the host group and confirm that it is the case?

You have 2 options in this case depending on what you want to do:

• Do you want to unpresent all the volumes to one of the servers? If so, you go into the host groups in administrator(by going to the storage Array > Host groups) and remove the WWWN of the host from host group. But be careful, as this will unpresent ALL the volumes from that host group to the server. 
• If you want to fix this, you'll have to do it path by path, and hope the failover works, best would be in a maintenance slot(since you can only have one WWWN one a port at a time in a host group). You can also possibly zone some new ports and fix this on the new ports and then delete the host groups on the old ports to complete the cleanup.

------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara

this is bit different not sure of realted to same host group why cant i remove protection of all GAD vols
if i select one vol unprotection is ok ,
if i select more than one protected vol unprotecting icon goes grayed .not selectable



------------------------------
dhruv kalia
System Administrator
EVRY AB
------------------------------

Original Message:
Sent: 12-13-2022 04:08
From: William Jansen van Nieuwenhuizen
Subject: Unallocate vols for single server drom cluster in ops center admin

Hello Dhruv

Thanks for marking the above response as the best answer.
Just for completeness sake you can navigate to Host Groups under storage as an example in Administrator. Click the Edit but and remove the WWN of the host that you want to take out:


------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara
------------------------------


Original Message:
Sent: 12-13-2022 03:01
From: dhruv kalia
Subject: Unallocate vols for single server drom cluster in ops center admin

many thanks for to the point answer but it doesn't apply to HCS we can select and upresent the  vols of single server from cluster
yes we have shared host group but it doesn't apply to HCS we can remove luns from single server in cluster in hcs
so i think we can use the way you suggested to remove all luns whether cluster or not , depending on the request
from host group for decommissioning ,its easy to remove wwpns rather that unallocating vols if we need to decomm

------------------------------
dhruv kalia
System Administrator
EVRY AB


Original Message:
Sent: 12-12-2022 13:08
From: William Jansen van Nieuwenhuizen
Subject: Unallocate vols for single server drom cluster in ops center admin

Hello

I'm making an assumption here. It seems like a shared host group was used, when the volume got provisioned?!

This is the only case where I can see this happening. If this is as I suspect, then yes it would unpresent to all the servers in the shared host group if removed from the host group this is true for both HCS and Administrator.

You should not used shared host groups, each server should be it's own entity for this reason. Can you maybe show the volume in the host group and confirm that it is the case?

You have 2 options in this case depending on what you want to do:

• Do you want to unpresent all the volumes to one of the servers? If so, you go into the host groups in administrator(by going to the storage Array > Host groups) and remove the WWWN of the host from host group. But be careful, as this will unpresent ALL the volumes from that host group to the server. 
• If you want to fix this, you'll have to do it path by path, and hope the failover works, best would be in a maintenance slot(since you can only have one WWWN one a port at a time in a host group). You can also possibly zone some new ports and fix this on the new ports and then delete the host groups on the old ports to complete the cleanup.

------------------------------
William Jansen van Nieuwenhuizen
Hitachi Vantara