On Fri, 2004-04-09 at 20:12, Adrian Midgley wrote: > On Friday 09 April 2004 08:18, Nandalal Gunaratne wrote: > > > I do not think it is possible to setup a cron job to > > backup to a CDRW or DVDRW device in Linux systems yet. > > It maybe possible when Linux supports writing to UDF > > file systems. Now it just supports reading these file > > systems. > > The only hard part is getting someone to put the CD in and remove the finished > object later. > > one would use tar to collect the material to be backed up into one place, > bzip2 to compress it to the maximum extent, mkisofs to make the compressed > file/s into a CD-ROM image and then cdrecord to write that image to the CD > > Using the archiving and compression software removes the problme of having to > add Joliet or Rock Ridge extensions to the CD FS to accomodate long file > names and the like, but mkisofs can handle those. (man mkisofs). > > Indeed, you can miss out the filesystem step, and just write data straight to > the CD with cdrecord, then dd it back to the hard drive when needed.
If the data contains identified or re-identifiable patient inormation (probably does), then don't forget to strongly encrypt the data before writing it to the CD. Any identified patient information which is not stored in a physically secure facility (eg a large data centre) should of course be encrypted on whatever medium is used to store it. This applies particularly to CD, back-up tapes, USB memory keys, laptops and removable hard drives, because they are readily portable, but also to the hard discs of servers located in insecure places eg. many GP surgeries/family practice clinics, where the server is vulnerable to theft. -- Tim C PGP/GnuPG Key 1024D/EAF993D0 available from keyservers everywhere or at http://members.optushome.com.au/tchur/pubkey.asc Key fingerprint = 8C22 BF76 33BA B3B5 1D5B EB37 7891 46A9 EAF9 93D0
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