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bacula_manual:supported_tape_drives [2010/02/05 00:52]
baylink Clean, expand, and FIXME: QIC tape user
bacula_manual:supported_tape_drives [2010/02/05 00:56] (current)
baylink
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 If you want to know what tape drive to buy that will work with Bacula, we really cannot tell you. However, we can say that if you are going to buy a drive, you should try to avoid DDS drives. The technology is rather old and DDS tape drives need frequent cleaning. DLT drives are generally much better (newer technology) and do not need frequent cleaning. If you want to know what tape drive to buy that will work with Bacula, we really cannot tell you. However, we can say that if you are going to buy a drive, you should try to avoid DDS drives. The technology is rather old and DDS tape drives need frequent cleaning. DLT drives are generally much better (newer technology) and do not need frequent cleaning.
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 +In short: if you need Bacula, don't scrimp on your tape hardware. ​ Newer, more rugged and reliable tape systems like DLT and LTO have come down in price, particularly used, and the wider the tape, the better.
  
 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.1265331125.txt.gz ยท Last modified: 2010/02/05 00:52 by baylink