Knowledgebase: Using tape drives
Presstore & TAR?
Posted by Andre Kuehnemund, Last modified by Andre Kuehnemund on 18 April 2012 16:28


"I am interested in your PresSTORE archive system, however, i’d like to know what is the archival format. Is it an open format such as TAR? Or is it a proprietary format?"


"We are planning on implementing a very long term archival process (~30 years). We use PresStore for our normal backup and archival needs, but when planning a really long term process, I would prefer to make the backups in a format that any system can access. Is it possible to use Presstore to write archives an a standard TAR-format?"



"It is not possible to make PresSTORE use the tar format. Tar has deficiencies and is not capable of storing long file names and special and extended attributes of the file. You'll also need a driver in order to be able to use the tar utility with tapes - and not all OSes come with one. By default, neither Mac nor Windows include a method with which tar can access the tape drive and the tape.

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Comments (2)
Malcom Sanders
10 November 2012 0:52
I understand PresStore does not use the TAR format on LTO tapes. But what about restoring data on another system that does not have PresStore installed? Is there a "recover only" utility available if I send tapes to another person/business?
Sven Koester
31 December 2012 10:35
Using PresSTORE Backup or archive tapes is not foreseen for data transfers to other hosts. We are aware of that request and will provide in the coming PresSTORE 5 release a mechanism to support LTFS formatted LTO-5 and LTO-6 tapes for data transport.
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