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Technical
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Technical Notes

Some Common Problems

Welcome to the Mainframe Appliance for Storage™ (MAS) Technical Support library. Here you'll find technical notes and knowledge base articles that answer frequently asked questions and address common problems.

Technical Notes

Info about AWS Tape Format
Defining the Mainframe Appliance for Storage to z/OS
Defining the Mainframe Appliance for Storage to VSE
Understanding FICON Interfaces
Tracing the MAS Software and Firmware
Tracing Devices in an IBM z/OS and OS390 Operating System
Tracing Devices in an IBM VSE/ESA Operating System
Tracing Devices in an IBM VM/ESA Operating System
MAS Disk Drive Names
(MAS 2.x and MAS 3.x ONLY)
Using ASCII Data/Labels with the MAS
Determining the MAS Fibre Channel World Wide Names (WWN)
(MAS 3.x ONLY)
Corrupted Tape Labels Cause MAS Mount Loop on MVS
IPL'ing a Mainframe Host from a MAS Virtual Tape
Using a USB Flash Drive on the MAS
(MAS 3.x ONLY)
Synchronizing the MAS with a Time Server
(MAS 4.x ONLY)
Format of MAS-Initialized Virtual Tape Volumes
Invoking MAS Commands from the Host
Extracting MAS Statistics

Some Common Problems

Tape library not accessible
Devices Won't Vary Online - "Channel Offline - No Light"
Devices Won't Vary Online - "Channel Online"
Error Message when Starting konsole
IEA437I Error Varying MTL Devices Online
IBM Updates Required for MAS Devices in an MTL Eviromnent
Bus-Tech MTL Utility MASLIB Return Code 08, Reason Code 130
Configuring Ethernet Speed
Message "System disk RAIDs are not mirroring properly" at startup
(MAS 2.x and MAS 3.x ONLY)
Host Ignores Scratch Tapes Mounted on the MAS
IEC502E Error Message When Mounting a MAS Tape Volume
RealVNC Viewer vers. 4.x.x won't connect to the MAS

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