Backup -- to disk instead of tape ?

What "backup to disk" APPLIANCE
vendors offer something like below
"Desired Steps" since I am trying
to get away from TAPE so I can easily
GROW into BIGGER hard drives if/when needed ?

Also, I assume you can reuse
backup TAPES more times then
you can reuse backup HARD DRIVES ?
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Current Steps
 1. Norton Backup Exec software
    Saturday NIGHT full backup (10TB) and
    Weekday NIGHTLY differential backup (~1TB)
    run on main Windows 2012 R2 server, backing up
    three PHYSICAL servers, each with 2 HyperV VMs
 2. every morning
      ** eject tapes
      ** insert new tapes
 3. every night
      ** take tapes offsite
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Desired Steps
 1. Norton Backup Exec software
    Saturday NIGHT full backup (10TB) and
    Weekday NIGHTLY differential backup (~1TB)
    run on main Windows 2012 R2 server, backing up
    three PHYSICAL servers, each with 2 HyperV VMs
 2. every morning
      ** eject hard drive
      ** insert new hard drive
 3. every night
      ** take hard drive offsite
finance_teacherAsked:
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JohnBusiness Consultant (Owner)Commented:
It would seem to me that backup to disk would need to be on a different server (not the same one). Tape backup is still very much alive. With Symantec Backup Exec V2015 and a modern LTO tape drive, you can back up about a terabyte and with tape, you can then move the tapes off site for better overall security. We do the latter for clients.

However with separate servers you could use back up to disk (removable disks on the separate server).

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Thomas RushCommented:
There is a disk-based appliance that will do what you want, it's the HP RDX drive -- an internal or external exclosure with hot-pluggable ruggedized hard drives, and automatic backup software that gives you near-continuous backups... full system recovery is possible at checkpoints set every 4-6 hours, and recovery of individual files is possible with greater granularity.   See www.hp.com/go/rdx .
Best practice would be to have one device for each server, and three data cartridges for each server.   Label the three cartridges for each server, and then for server A, label one cartridge "Rock", one "Paper", and the last "Scissors".   You start backing up to "Rock", at the end of the day, you remove Rock and replace it with Paper (Paper beats Rock, in the old choosing game).   Rock gets taken offsite.  At the end of day 2, you remove Paper, replace it with Scissors, and Scissors goes offsite.  When you're offsite looking at Rock and Scissors, Rock beats Scissors, so Rock goes back to the data center, and Scissors stays offsite.   And so on....

The RDX come with built-in backup software, so you won't have to use Backup Exec except for your month-end backups to tape for archiving/audit.

Notes:
1) DON'T think you can do long-term storage on disk that's not powered on -- you risk bit rot that will silently corrupt your data.  Tape, on the other hand, will last for decades with only minimal HVAC.
2) LTO-6 tapes store 2.5TB native (more if your data is compressible), and cost less than $100.  You don't get disks of the same quality for that price.
3) LTO-4, -5, -6 drives can perform secure encryption without loss of performance.  I believe you can encrypt the RDX, but there will be some performance hit.
4) Yes, you can re-use tapes many, many times.  You can append until a tape is full, and format at any time to make the entire original capacity available again.
5) Depending on how much data you have, you can use a backup server that has the tape drive attached to it, and put multiple servers' data on a single tape (which you could not do with the RDX drives mentioned above).
6) Be careful about enclosures with removable drives -- many of them are only built for a few dozen disk swaps (i.e., they're made to be used as a disk array, with replacements only for disk failures, not for daily rotational disk pulls as you seem to want).
7) Most backup appliances use replication for giving you the off-site copy.  This is a great technology (particularly when the appliance uses deduplication)... but does require the purchase of two appliances.
8) Oh, for completeness' sake, if you have a second site you could use for replication, and you're up to buying a couple of inexpensive disk arrays, consider HP's StoreOnce VSA.   The StoreOnce VSA is a software implementation of their StoreOnce product that runs under VMware or Hyper-V.   It presents the storage you give it as a Virtual Tape Library or a NAS share, deduplicating the data as it's written, and able to replicate only the changed/new data to a second VSA (or even physical StoreOnce appliance).  You'd still use Backup Exec as your backup application if you chose, you'd just change the backup target.   And, you'd still want to keep tape for your monthly and yearly archive/audit copies.   It's about $1400 for a 4TB license, if I recall correctly... and can be expanded to a 10- or 50TB license.    It's really pretty cool technology.    www.hp.com/go/storeoncevsa

If you're happy with your current backup scheme (other than tape size, I have to ask which tape drive model do you have?, and how much data do you have to back up for a full backup?   It's entirely possible that the simplest, most comprehensive data protection scheme will be to simply get a larger capacity tape drive.
JohnBusiness Consultant (Owner)Commented:
@finance_teacher - Thanks and I was happy to help.
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