07-31-2013 01:52 AM
Hi Guys, i was wondering if anyone can help. I have inheritated a Dell PowerVault TL2000 which i intend to use for backup through Backup Exec. Can anyone help me out with what tapes to buy and how many? What backup routine would best suit etc?
I have about 800gb to backup. I was thinking a full back up held for 2 weeks along with daily incrementals. Any help would be appreicated. Thanks
07-31-2013 02:08 AM
Do you have a LTO 6 tape drive with this? but tapes which are compatible for this format
Native capacity of a LTO 6 drive is 2.5 TB so make calculate how much you need for saving 2 weekly backups and 10 daily incrementals
Backup setup which best suits is
Weekly full
Daily incremental
Protect the tapes for 2 weeks
Overwrite the tapes in the 3rd week
07-31-2013 02:14 AM
Thanks for the quick reply. I think the tapes are lto4.
07-31-2013 02:26 AM
Native capacity of an LTO 4 is 800 GB
07-31-2013 02:33 AM
thanks how many tapes would i require in the library? to hold a full backup every week for 2 weeks and a daily incrementle.
I really appreciate your help.
07-31-2013 02:39 AM
This need testing
You can test it to a disk storage
You need to test how much data is backed up in full lets say 100 GB
You need to test how much data incremental backup backs up daily , lets say 10 GB per day = 50 GB in a week
so in a week you need 100 + 50 = 150 GB and for 2 week you will need 300 GB of tape storage
so if you have an LTO 4 1 800 GB Tape is enough
if the data is 3000 GB then 4 tapes approx (3000/800=3.75)
07-31-2013 02:43 AM
How long will you hold your daily INCR? Will they run 6 days a week, or only work days (4 days)?
You'd need 2 Daily Full tapes. Your INCR tape requirements would depend on how many times you run the INCR job. If 6x, then 12 tapes. If 5x, then 10 tapes etc.
I honestly never left tapes in the autoloaders/libraries unless they were going to be used for a specific backup. I always removed them. If your library can take the # of tapes you require, and you want to leave them in, then do so.
Thanks!