Navigation and service

Data Backup and Restore

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Since 1993 JSC offered a centrally administered backup service for systems and workstations connected to JuNet by the program product ISP (IBM Spectrum Protect) which was formerly known as TSM (Tivoli Storage Manager).

From January 2013, almost 20 years later, the data backup service for user data on PCs, workstations, and file servers at the FZJ campus will be offered by ITS. JSC continues to host the server- and storage-hardware as well as the basic ISP server software for ITS. Data at the HPC-systems, the JSC cluster systems and the JSC workstation group are still backed up by ISP at JSC.

Backup function

After an initial full backup only the changed or new data are copied daily to magnetic tapes in robot systems. By default the four most recent copies of a dataset are kept. This automatic process protects against loss of data due to disk failures, software errors or inadvertent deletion of data.

Data that was accidentally deleted from disk can be restored interactivly by the user (owner) within four weeks without intervention of the administrator of the system.

If confidential or sensitive data has to be backed up the user has to take reponsibility for data encryption (IT Security Rules for Baseline Protection, Rule D4).

Registration, download and install

Users on the HPC systems, the JSC cluster systems, and the JSC workstation group don't need to register and install any client software to use ISP backup functions.

All other users have to register for ISP data backup service at

After registration the appropriate ISP client must be downloaded and installed on the system before the ISP functions can be used. Please refer to