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bacula_manual:supported_tape_drives [2010/02/05 00:54]
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bacula_manual:supported_tape_drives [2010/02/05 00:56] (current)
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 Below, you will find a table of DLT and LTO tape specifications that will give you some idea of the capacity and speed of modern tapes. The capacities that are listed are the native tape capacity without compression. All modern drives have hardware compression,​ and manufacturers often list compressed capacity using a compression ration of 2:1. The actual compression ratio will depend mostly on the data you have to backup, but I find that 1.5:1 is a much more reasonable number (i.e. multiply the value shown in the table by 1.5 to get a rough average of what you will probably see). The transfer rates are rounded to the nearest GB/hr. All values are provided by various manufacturers. Below, you will find a table of DLT and LTO tape specifications that will give you some idea of the capacity and speed of modern tapes. The capacities that are listed are the native tape capacity without compression. All modern drives have hardware compression,​ and manufacturers often list compressed capacity using a compression ration of 2:1. The actual compression ratio will depend mostly on the data you have to backup, but I find that 1.5:1 is a much more reasonable number (i.e. multiply the value shown in the table by 1.5 to get a rough average of what you will probably see). The transfer rates are rounded to the nearest GB/hr. All values are provided by various manufacturers.
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 +DDS/DAT tape is 4mm, Exabyte tapes are generally 8mm, Travan was the last gasp of QIC, DLT and LTO are 1/2" single reel-implementations.
  
 The Media Type is what is designated by the manufacturers and you are not required to use (but you may) the same name in your Bacula conf resources. ​ The Media Type is what is designated by the manufacturers and you are not required to use (but you may) the same name in your Bacula conf resources. ​
bacula_manual/supported_tape_drives.1265331263.txt.gz ยท Last modified: 2010/02/05 00:54 by baylink