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Os of spare server cannot find tape library or drive of VTL

Publication Date:  2012-10-15 Views:  81 Downloads:  0
Issue Description
Os of spare server cannot find tape library or drive of VTL when VTL server is spared to the spare server.
Alarm Information
Handling Process
1. Choose VTL server object and check the state of the server. If it is offline, the server is offline, so the spare server cannot find it.
2. If the server is online, check the configuration of the server.
(a) Check WWPN: in the control bench, right-click the resource you distribute to the client and choose properties. Record the WWPN of initiator and target. Choose physical resource, find and record the HBA card which is matched to WWPN of the target. Right-click the adapter, and choose ‘refresh SNS’. Choose SNS table of HBA, find and record the WWPN which is matched to the target.
If the WWPN is wrong, you should redistribute it as proper map type after canceling server distribute. If there are many HBA cards existing, check the needed items in SNS table. If WWPN is not in SNS table, check FC port partition and FC link.
(b) Check VSA addressing: some optical channel hosts are using VSA mode. This mode is mainly used to virtual bus, target and LUN. If so, please start VSA of VTL target drive. And some spare servers cannot scan more than 8 LUNs on VTL virtual device.
Root Cause
VTL server offline or spare server configuration problem may cause this case.