Hi all! I have a running Amanda config that runs on 20 DLT tapes and a changer. I would like to make Amanda go on disk storage rather than tape storage (the "file:" driver). But I have a security problem. What if my disks crash? A Raid 5 is of course the first thing I would do, but if my server gets a power overload, all of my disks would burn, and so the backup data... I like the tapes because when the data is written, only fire or water could make me loose this data. And this list of breakdown causes is bigger if I use hard disks instead of tapes.
Why the hell do I want to unplug my brilliant DLT changer? Mainly because of its performances: Amanda tells me it uses 1000ko/s writing a tape, and about 6500ko/s writing a disk. And I like this speed very much, because of the time needed to back up data, and mainly because of the time needed to restore them... But I am quite afraid of some hardware security issues. Could you help me imagine a new backup security policy? Maybe 2 Amandas, one daily incremental going on disk, and one weekly always full going on tape? But that's weird, because one day per week I will have 2 Amandas getting the same data from the same clients, and the clients do not really like that 2 different Amandas run on them in the same time... Any ideas? Thanks! ----------------------------------------------------------------------- Jean-Christian SIMONETTI email: [EMAIL PROTECTED] SysAdmin Wanadoo Portails phone: (+33)493004911 Sophia Antipolis, France -----------------------------------------------------------------------
