Technics to backup 150 servers

I am working with legato Networker version 7.1 and LTO2 tapes . I have been in charge to develop a system to backup all these servers. this backup is from client-to-tape. I tested the system and during a full backup it takes about 10 tapes. Management wants to have a such system in place that they can restore any file from the last six months, so basicaly there will be a retention period of six months. So my question is, do I take every week a full backup and keep it for six months? or I take a granfather schema? or there any other schema that i can use  with these type of tapes ?  Any comment will be appreciated
Jorge-123Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

RobinHumanCommented:
Suggest you take a weekly full backup (over a weekend) and during the week an incremental backup if your data changes frequently;
work in a 2-week cycle for these tapes and store off-site (that would be best-practice, but not essential)
(I assume you are using an autoloader if it's taking 10 tapes)
Hope this helps you
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
SysExpertCommented:
I agree in principle, but you may want to add a Monthly full backup set as well.

After you have 2 or 3 full sets, you could go to a incremental or differential backup to save on tapes ( theoretically ).

Otherwise you are talking about 10 x 26 weeks of tapes.


I hope this helps !

0
Jorge-123Author Commented:

Hi
From your comments I got this options:
 
Option  1. -  26 weeks x 10 = 260 tapes for full backups (no differential backups)
 
Option  2.-  2-week cycles will be , one full backup and two weeks of  differential backups   5 x26 = 130 tapes for full backups  and  one tape for differential per week so it will be 2 x 26 = 52 tapes for differential, so it will be a total of  180 tapes
 
Option 3.-   1 full backup and  four weeks of  differential  backups, 10 x 6 months = 60 tapes for full backups and
 1 x 26 weeks = 26 tapes for differential backups.  Therefore I will have 60 + 26 =  86 tapes
 
Option 4.-  3 full sets  means to me 10 x 3 weeks -30 tapes for full backups and the rest of the time differential backups only ? This one I really did not understand very well.
 
Option 5.- will be , three week of full backup with incremetal during the week, the last weekend of the month take a full backupo and that tape wiil be off-site and  the followin month reuse the previos tapes for other three week and at the end of the month , or the last week take a full backup and then thake it off-site and at the end of the six month take a full bakup and that it off-site.
So this will be  10 x 3 week = 30 tapes with full backup and resusable and  10 x 1 week= 10 tapes to full backup and stored off-site
So in total I wil have  10 x 6 months = 60 tapes with full
10 x 1 months  10 tapes for the six month
10 x 3 weeks = 30 tapes resusable every month
So in total I will have  60 tapes + 10 tapes + 30 tapes = 100 tapes
 
Did I understand your comments correctly? Or I was missing something? with these options can I restore any data for the last six monts?  
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Storage Software

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.