Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Basic backup question.

26 Mar 2013   #1
zzpack

x86
 
 
Basic backup question.

Im pretty new to backup in general.

In theory, what will happen in the following scenario? If using the grandfather-father-son strategy,
i.e monthly-weekly-daily.

One weekly backup job has failed. The next day and the following working days, the daily backup runs fine. Then, the next weekend the weekly job runs fine.

Will I simply loose one whole week backup, when the monthly backup job is run at the end of the month?
(I know, I can re-run the weekly job, but Im curious to the answer anyway).


My System SpecsSystem Spec
.
26 Mar 2013   #2
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

The Grandfather - Father - Son strategy is more related to the number of backups you retain rather than the frequency of backups, The Grandfather - Father - Son refers to copies, (or more precisely off line media, containing the backups) of the last three backups. This stratagy allows you to go back up to three data-sets for any backup you run. In your example this would mean you could go back to a state as it was, up to, three days ago, Three Weeks ago, or Three Months ago. it comes from the use of tape backups where three tapes were used for backups and the oldest tape in the set was used for the current backup

The result of your failure scenario would depend on the nature of your backups

if the daily backups are incrementally linked to your weekly backup, ie. they backup changes from the last weekly backup then you could loose the first days changes (when the weekly was run but not the daily ), if the Daily backups are run every day, and re-set weekly, you should be able to reconstruct all data as long as each daily backup includes all changes from the reset point, rather than just the daily changes.
My System SpecsSystem Spec
26 Mar 2013   #3
zzpack

x86
 
 

Quote   Quote: Originally Posted by Barman58 View Post
...

The result of your failure scenario would depend on the nature of your backups

if the daily backups are incrementally linked to your weekly backup, ie. they backup changes from the last weekly backup then you could loose the first days changes (when the weekly was run but not the daily ), if the Daily backups are run every day, and re-set weekly, you should be able to reconstruct all data as long as each daily backup includes all changes from the reset point, rather than just the daily changes.
Thanks for your answer. The daily backups are incremental.
But the part in bold. Do you actually mean "when the daily was run but not the weekly"?
My System SpecsSystem Spec
.

26 Mar 2013   #4
Barman58

Windows 10 Pro x64 x2 Windows 10 Enterprise x64, Ubuntu
 
 

Sorry for any confusion, In a daily / Weekly backup set it is possible that the running of a weekly means that the daily is not actually run on that day.

When running backups on a large database system I would always use 24 tapes! - seven daily tapes, five weekly tapes, ( to cover the five week months), and twelve monthly tapes - the monthly tape was always a new one with the old one being placed into long term storage, on a regular basis a daily tape replaced and was recycled to a weekly tapes and a weekly tape to a monthly so that no tape was used beyond a certain age this was due to the mission critical nature of the data, and the legal requirement to retain business data for seven years and would likely be overkill for most purposes
My System SpecsSystem Spec
Reply

 Basic backup question.




Thread Tools




Similar help and support threads
Thread Forum
Need help with basic network wi fi question
I have Comcast as my ISP and use their modem for cable TV, internet and phone service. I have a Netgear router with wired connections to two Dell Win 7 desktop pcs and a wireless connection to a Win 7 laptop. I recently installed a small app called "Who is on my wifi"and on running its scan it...
Network & Sharing
Basic security question
Hi all, My Win7 desktop has admin plus user accounts for myself (Keith) and wife (Jean). The HDD is partitioned with all progs on C: and data on D: I recently lost a file and dont remember deleting it, so thought I would check if it were possible for Jean to delete it. (Yes I have backup, so...
System Security
Basic questions on Windows 7 native backup and restore
I have some basic Win 7 Home Premium questions re creating/restoring IMAGES of my C drive ( and hidden partitions) using native Windows backup and restore. Never really used it before as I use other software instead, but wanted to explore this option a bit further: QUESTIONS: 1) When I...
Backup and Restore
(windows Backup) deleting old backup states simple question
I got a simple question, let me explain it like an example: Let's say I backup 100GB of data with Windows Backup and over the time where I do all my backups there is like only 30GB of data which changed from those 100GB and also new files were added. Now my external drive is full. When I now delete...
Backup and Restore
Basic Question on Easy US todo Backup-- how to create image
OK I have the Free Easy ToDo Backup, I think version 4.0. I have W7 64-bit Home I recently bought a new external HD. I back up crucial files as needed (copy it to a different HD) But I want to B/U my Toshiba Laptop. I want to get a complete system image so that if I get a crash I can...
Backup and Restore
Basic driver question
Biostar does not supply drivers for the TF-7025 mb for Win 7. I assume the mb drivers for Vista will work. Correct? I do have an Win 7 Nvidia driver for the onboard video. That being the case, should I skip the installation of the Vista onboard VGA driver and go straight to the installation...
Drivers


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 16:03.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App