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The Integrated Simple ARchive (ISAR) Cloud Storage allows partial administrators of the MWN-ADS to move data from the cloud storage nas.mwn.de to an online archiving area. The data on the ISAR cloud storage is kept online for ten years and additionally backed up in the archive and backup system of the LRZ. After the retention period of 10 years, an automatic sliding deletion of the files from the file system of the ISAR Cloud Storage takes place. After such a deletion, the data is available for another 10 years from the archive and backup system of the LRZ for a restore. Thus, ISAR Cloud Storage provides a convenient way for institutions in the MWN to offload data worthy of retention to a disk system at the LRZ for the long term without having to deal with an archiving system itself.
ISAR Cloud Storage is not a substitute for server or file storage backup! For this purpose, please use the archive and backup system of the LRZ.
The ISAR Cloud Storage is accessible via the "Fully Qualified Domain Name" (FQDN) isar.mwn.de. The folder structure on the ISAR Cloud Storage is based on the faculty and chair structure on the cloud storage nas.mwn.de. A dedicated folder 01_ISAR is set up below each chair to store files for online archiving and cannot be modified. Only folders and files below the 01_ISAR folder are backed up through the archive and backup system and retained for an additional 10 years.
Partial administrator:s cannot customize NTFS permissions. Permission to access ISAR Cloud Storage is controlled by the respective institution's MNFKLS1GM-ISAR Admins group in MWN-ADS. The authorization for the ISAR Cloud Storage must be requested via the IT support of the TUM or the LRZ.
Write access for the ISAR Cloud Storage is exclusively reserved for partial administrators and cannot be delegated further.
A reading access for members of the respective institution can be set up via the respective group MWNFKLS1GM-ISAR-READERS in the subarea of the institution in MWN-ADS. The membership in the "readers" group can be managed by the partial administrators themselves.
Partial administrators can currently access the ISAR Cloud Storage storage area from throughout MWN. We recommend accessing ISAR Cloud Storage and filing data via the management server mgmt.ads.mwn.de. All conventional methods under Windows are supported. However, please note the restrictions on path length with Windows Explorer. Please do not store many millions of single small files, but pack these files accordingly, as the maximum number of files is limited for performance reasons.
After transferring the data to the ISAR Cloud Storage, the files are automatically written to the archive and backup system of the LRZ on tape with a time delay. It is recommended to keep the files online for at least another four weeks until the data is written to tape. When naming the storage folder on the ISAR Cloud Storage, partial administrators should ensure that the names are unique in order to make it easier to find files again and to prevent files from being accidentally overwritten in the backup system.
You can copy the files to be archived to the ISAR Cloud Storage as usual using the Windows Explorer. However, you should consider the limitation for the path length of 255 characters with Windows Explorer. The path length can lead to problems, which is why we do not recommend using Windows Explorer for deeper folder structures.
File manager Totalcommander
As a replacement for Windows Explorer for transferring files, we recommend the file manager Totalcommander preinstalled on mgmt.ads.mwn.de. The tool can be found as a desktop shortcut on the management server mgmt.ads.mwn.de. Totalcommander can handle long paths (no limitation of path length to 255 characters like Windows Explorer). The user will be notified if the path length exceeds 255 characters, but the file manager will copy the files anyway.
Easy copying of files with drag and drop:
Compare folder structures via "Commands - Synchronize directory ...":
Command line - Robocopy
For experienced partial administrators who are familiar with the use of command lines, the use of Robocopy is recommended. With this tool, folder structures can be transferred easily. A detailed summary is provided at the end of the process.
Transferring the Project Data folder and its contents to ISAR Cloud Storage into a Project Data folder:
Mirror the Project Data folder and its contents, deleting all files that are too much on the target system:
Verification that all files have been transferred from the Project Data folder without transferring any files:
Below the directory 00_LOGS of each facility there is information about the last TSM backup runs of the facility and an extract of all data backed up for the area in the respective TSM node. The log files and extracts are also backed up to the respective TSM node of the facility. The logs will be available as of 4/1/2019. Prior to this date, only limited backup logs exist.
In the directory \\isar.ads.mwn.de\MNFK\LS1\00_LOGS\ISAR_Archived an extract of all files backed up in the TSM node of your institution is created and stored once a week. You will find information when the file was backed up and the exact path to the file.
A scheduler on the ISAR starts a backup of the data twice a day. The volumes are backed up one after the other. Depending on the load due to the newly added data the single volumes are processed. The log about the last TSM backup runs is stored in the directory \\isar.ads.mwn.de\MNFK\LS1\00_LOGS\ISAR_BackupLogs. The backup logs are named with the timestamp and can be found online in the directory for seven days.