Berkeley CSUA MOTD:Entry 30833
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2025/05/25 [General] UID:1000 Activity:popular
5/25    

2004/6/16 [Computer/HW/Drives] UID:30833 Activity:insanely high
6/16    I have about 500 Gigs of stuff that I need to backup on a monthly
        basis. I anticipate that our content will grow to 1000Gig in the
        next year or two. Should I just get 2-4 big HDs or should I get
        tape backup device? Opinions?                   -newbie admin
        \_ Do you need to back up the entire 500g each month or just an
           initial cut and a small amount of data changing each month?  500g
           per month is an insane amount of tapes.  500g every 6 months plus
           5-10 gigs a month is fine for tapes.
        \_ Get hard drives and a fast network.
        \_ TAPE BACKUP IS DEAD! External 250 Gig drive costs $250. Two
           would be $500, which is still much cheaper (and faster) than
           any tape backup system out there. Get more as you need them.
        \_ Just curious, I know the lifespan of a hard drive is 2-6 years.
           How is it with tape?  Is it about the same schedule for both
           media when copying the old backups to new hardware?
           \_ No, MTBF for a single ATA HD is about 68 years.  Much higher
              for a quality Seagate SCSI or FC drive.
              \_ My personal experience suggests that number is wildly
                 optimistic.
                 \_ You aren't supposed to play soccer with them.
        \_ 640K is all anybody should ever need.
           \_ Sigh, just like Gore/internet and ketchup/vegetables.
        \_ The new marketing buzzword is D2D2T, which stands for "Disk to
           disk to tape."  You setup a big raid unit to backup to as fast
           as you can, then backup that onto a tape at a more leisurely rate
           and then send the tapes offsite.  The middle disk will provide
           fast and easy restore to recent stuff while the offsite tape
           will provide long term archive.
           \_ But will D2D2T leverage B2B and B2C strategies to increase
              OEM market share at high levels?
              \_ Yes.  It is called the Netapp Rxxx series of NAS appliances.
2025/05/25 [General] UID:1000 Activity:popular
5/25    

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