Hello, 

 I don't have a known answer to this issue. 

 Please run the following commands and copy/paste the output 

GrpName> show member -poolinfo

GrpName>show recentevents

Grpname>show pool

GrpName>show volume

 I noticed the "desired status" is offline.  Which usually means someone put it offline.  

 Just to see if there's more info try onlining the volume at the CLI and send me the result

 GrpName>volume  select VOLUMENAME online 

 i.e.   GrpName>volume select Veeam-01 online

Do you have a current support contract?  If not, depending on the local region you are in, you may be able to open a one time support case for a fee.   They could gather diagnostic logs to get a better understnding of what is causing the issue.

 What version of firmware are you using? 

 Regards, 

Don 

#iworkfordell

Thank you Don!

EQL-Array> show member -poolinfo
Name Status Version Disks Capacity FreeSpace Connections Pool
---------- ------- ---------- ----- ---------- ---------- ----------- -------
EQL-04 online V10.0.2 (R 16 11.34TB 3.69TB 4 VEEAM
465844)
EQL-01 online V10.0.2 (R 16 34.88TB 8.72TB 4 VEEAM
465844)
EQL-05 online V10.0.2 (R 16 34.88TB 9.37TB 6 VEEAM
465844)
EQL-03 online V10.0.2 (R 16 11.34TB 7.88TB 1 VEEAM
465844)
EQL-02 online V10.0.2 (R 16 34.88TB 4.07TB 5 VEEAM
465844)
EQL-07 online V10.0.2 (R 16 34.88TB 15.01TB 5 VEEAM
EQL-06 online V10.0.2 (R 16 23.08TB 1.92TB 6 VEEAM
465844)
EQL-Array>

I reconnected the volumes that are online so show recent events are filled with iscsi connection logs

38415:31688:EQL-07:MgmtExec:21-Feb-2023 16:11:45.863016:targetAttr.cc:846:INFO:7
.2.14:iSCSI login to target '172.16.16.16:3260, iqn.2001-05.com.equallogic:0-8a09
06-730783706-18f00cd1bcb5b2c8-veeam-07' from initiator '172.16.16.2:61912, iqn.19
91-05.com.microsoft:veeam-data' successful, using Jumbo Frame length.

38414:31687:EQL-07:MgmtExec:21-Feb-2023 16:11:45.843015:targetAttr.cc:974:INFO:7
.2.15:iSCSI session to target '172.16.16.15:3260, iqn.2001-05.com.equallogic:0-8a
0906-730783706-18f00cd1bcb5b2c8-veeam-07' from initiator '172.16.16.2:61868, iqn.
1991-05.com.microsoft:veeam-data' was closed.
Logout request was received from the initiator.

38412:31686:EQL-07:MgmtExec:21-Feb-2023 16:11:25.563014:targetAttr.cc:846:INFO:7
.2.14:iSCSI login to target '172.16.16.75:3260, iqn.2001-05.com.equallogic:0-8a09
06-d75cb8e04-3f74204dc8663458-veeam-11' from initiator '172.16.16.2:61909, iqn.19
91-05.com.microsoft:veeam-data' successful, using Jumbo Frame length.

Looking through the events there is nothing obvious that explains this issue. 

I did try setting the volume online and that is when I get the "% Error - Failback operation is in progress on this volume. The volume cannot be set online."

EQL-Array> show pool
Name Default Members Volumes Capacity FreeSpace Maintenance
-------------------- ------- ------- ------- ---------- ---------- -----------
default true 0 0 0MB 0MB false
maintenance false 1 0 0MB 0MB true
VEEAM false 7 12 185.28TB 50.57TB false

All members on 10.0.2 R465844

We might submit a ticket but wanted to post it here first. 

Hello, 

 Thank you for the reply. 

  At this point opening a case is your best option.  There's no quiick fix that I am aware of. 

  If you do open a case, gathering diags now will shorten the process.  You will need to get diagnostics from ALL members. 

  Regards, 

Don 

#iworkfordell

Thank you, Don. Appreciate the quick reply!

Hello, 

 You are quite welcome!   Wish I could have helped more.  If you do get it resolved, would you mind posting the answer here?    

  Regards, 

Don 

#iworkfordell