Need Advice on Backup strategy

Hi,
Database version:10.2.0.
Database Size:60GB.
Daily Updation Approximately :2GB.
I need some advice on my backup strategy.
My backup startegy:
Monthly Once, Date: 1 Full backup (Incremental level 0).
Daily Incremental level 2 backup from Date: 2 to 6.
Weekly Once Incremental leve 1 backup on Date:7.
Daily Incremental level 2 backup from Date:8 to 13.
Weekly Incremental level 1 backup on Date:14.
Daily Incremental level 2 backup from Date:15 to 21.
Weekly Incremental level 1 backup on Date:22.
Daily Incremental level 2 backup from Date:23 to 28.
Weekly Incremental level 1 backup on Date:29.
My system requirments are i have only 70GB disk to store the backups, i can store only the full backup in it.So what i am doing is, Am storing the full backup in my disk and am transfering the Incrmental level 1(weekly Once backup) to the Tape and deleting the Daily level 2 backups, after taking that weekly backup.
Is my strategy correct or should i do anything different plz give me some advice.
TIA,

This backup strategy doesn't look bad. However the 70G of free space will be a pain in the neck. I suggest you to increase storage. Have you considered archivelog too? This average 2G daily transaction rate will increase storage requirements, sooner or later, so backup storage requirements.
~ Madrid

Similar Messages

Need help with backup strategy

So my 2 TB backup drive failed this morning. I'm using a Seagate drive in an OWC external enclosure. I plugged it in and the drive didn't pop-up on the desktop, nor is it visible in Disk Utility.
I know that all drives eventually fail, but it seems like I've had more than my fair share of problems lately. This is of course making me think hard about my backup strategy. Here's what I'm doing now - I'd appreciate your thoughts on how to make it even more "bulletproof".
> TimeMachine back-up of boot drive and media drive (with photos, documents, movies, etc.)
> External clone of boot drive and media drive (on two partitions) - this is the one that failed
I suppose I could add a third external clone for redundancy, but an offsite backup would probably be even better. Not quite sure what the best option is there, though. Any ideas?

I too love automation. However, an automated backup requires the backup drive to be always connected (and maybe powered) in order to perform the backup. Also, the computer you speak of must remain on (by the sounds of it) 24/7 in order to do a nightly back up at midnight.
First of all, it probably is not the best to leave your puter on 24/7. I won't go into all the OS reasons why. But here are 2 other reasons to think about:
1) Your internal HD will always be powered, bad on drives
2) You are constantly using power to run your system. Not good for your power bill or the greater environment
As for the always connected Backup HD- I only connect, and power on my backup when I go to do a backup. This leaves it disconnected in case of virus infection. And powered down/disconnected removes some of the risk of damage from power surges/spikes (yes I use a UPS, but these can/have failed)
So to sum up: I back up everyday. What I do is after I am done working in LR for the day I shut it down, and than start it back up (ugh) so that I can back up my Library with all the work I just did (wish Adobe would do a back up upon closing!!!)
Than I close down LR AGAIN..... Than I connect my Back up HD. Via usb, once connected it automatically powers up and fires up the back up software. All I do is hit start. Since this is an incremental back up it only takes a short while. I go use the "John" grab a drink, and come back unplug the Back up HD, and turn off the system for the day.

Need advice on backup hardware

I am using an Xserve for a disk-to-disk backup, and as our data has expanded, we need more backup room. The Xserve is connected to a RAID, and we need to back up about 1.5 TB from that RAID once a week for offsite storage.
Each night, the backups go to the RAID. All is well there. But the weekly offsite storage is the issue.
This will be rotated weekly, so there would be two offsite drives or modules -- one offsite at all times.
Up to now, we have been using Firewire connected drives, and rotating them offsite has worked OK. Now we are evaluating three ideas to accomplish this task on a more professional level, and I would welcome feedback on these ideas. Tape is not an option.
Options proposed are:
1. Using "raw" drives (1.5 or 2 TB mechanisms) in a simple hard-drive docking station. The drives would be placed in these each week, then stored in a case of some sort when offsite.
2. Using standard desktop drive/case units (i.e. LaCie, Iomega, etc.).
3. Using a rack-mounted solution (OWC, Sonnet, etc) that has FireWire/eSATA connectivity and hot-swap drives in sleds. These, too, would be in a case of sorts when offsite.
4. Using a drive module on the Xserve -- buy, say, two 80GB ADMs and the replace the mechanisms with a 1.5 or 2 TB mechanisms. These, too, would be in a case of sorts when offsite. Since the Xserve is connected to a RAID, one other drive would be the boot/backup software drive and remain in place at all times.
My initial thoughts:
Option 1 leaves the drive too vulnerable, and the units allow the drives to get hot when used for long periods of time. Drives also are spinning down as they are removed, which could be risky. I don't like this idea.
Option 2 works (and has worked) but it involves unplugging FW800 and power cables from the drives, and then these heavy units must be dealt with. An OK solution, but not ideal.
Option 3 appeals to me because it offers some security for the drive (sleds, ability for the drive to spin down once unmounted and before transport) yet without the bulk of an external drive such as a LaCie. Also, being rack mounted, no power or data cables must be touched.
Option 4 is, like Option 3, simple (no power/data to deal with), and offers some security for the drives. But it involves placing unapproved drives into the Xserve as well as putting lots of insertion/removal cycles on the Xserve drive bays (which may or may not be designed for this use).
Any thoughts? I'd really like to get some feedback...
Thanks,
Pete

To clarify:
The data we'd take off site would be a duplicate of what's on the RAID. So in this scenario, nightly backups are done to the RAID, which keeps a week's worth of snapshots. Then, on Sunday, the RAID's content is simply duplicated to an individual drive -- let's say 'Drive A' -- which is taken off site Monday and swapped with 'Drive B.' The following Sunday, the RAID's content is duplicated to Drive B, and the process repeats itself. These offsite drives could/would/are any of the options suggested.
The purpose of the duplicated data is to provide protection in case of a fire or other disaster.
Because of the amount of data -- and the fact that this company only keeps data for a week or so (there is no need for massive long-term archiving; what is archived is done by a different means) -- tape is a costly solution, and it is slow. Tape was used at one time, but the company has moved away from it. Speed, frankly, was a major problem with tape (we still have a Quantum DLT device that holds up to 600 gb (compressed -- reality was about 350gb) data, but it is not being used at present.)
I agree: Your points are valid about the sleds, and the "options." These are the options on the table, and I'm trying to get feedback on these or different options to propose.
Agreed, too: None of these may be ideal. Maybe we should go back to dumping these weekly offsites to the DLT or another tape unit.
Thank you for the input, and any other ideas would be helpful!
Pete

Need Advice on Backups (w/wo Time Machine)

Just purchased a Mac Mini with Snow Leopard Server. Setup is in a small office with two users, with expansion in the future. The mac mini, as most of you know, has two hard drives, one with the system files on it and an empty one for use as you deem. I have an external 1TB hard drive as well, that I was using for backing up my laptop. Now that I have a server, I am wondering how I should run my backups. I was thinking about hosting all files on the main hard drive, using Time machine to back up to the secondary hard drive, and maybe use the external to backup the laptops to. What do you think? I am also familiar with Carbon Copy Cloner for backups, and wouldn't mind using that either, to run backups. Thanks in advance for the input.

TM is not your best bet for backing up OS X Server. It will not fully backup some files.
You can use CCC to backup the Server if you boot the server from another source - for example the install DVD.
You might also consider using one HD for the OS and one HD for the data. You can then backup the data without taking the server offline, and backup the OS as often as is needed, which tends to be less often than the data needs to be backed up.
A Time Capsule might be a good bet for backing up the laptops.
You may also want to consider a service like carbonite for the laptops. Not sure if it would work for a server, but it would give you automatic offsite backups for your laptops.
You're definitely on the right track to think about backups as a priority - just make sure you decide what you need for backups, and go from there.

Advice on backup strategy.

I have a small network of less than 10 macs, all on ethernet connected to a centrally located switch. We have a Snow Leopard Server for storing and sharing about 300 GB of documents amongs the users and I currently have it setup to let all the macs backup to an external drive connected to it and enabled for Time Machine. We have a fiberoptic line connecting our building to another building about 500 m away. Initially, this line was used to access a router but now we are going to move the router into our building. But, the fiber line will still be available and we would like to use it to send an offsite backup over. What should we do?
We could purchase a Time Capsule and put it in the other building but would we then disable the Time Machine on the server and have all the clients AND the server backup over the fiber line to the Time Capsule? Can I backup the Time Machine backups to the Time Capsule? What I mean is, leave all the clients backing up to the server and then backup the server to a remote time capsule? Would that even work? If the main building burnt could I restore the Time Machine backups to a drive and then from there restore them to client?
Any advice will be appreciated.

Larry Jorgenson wrote:
We could purchase a Time Capsule and put it in the other building but would we then disable the Time Machine on the server and have all the clients AND the server backup over the fiber line to the Time Capsule?
Yes, that's an option (probably the best).
Can I backup the Time Machine backups to the Time Capsule? What I mean is, leave all the clients backing up to the server and then backup the server to a remote time capsule?
I'm not familiar enough with the Server product, but I don't think so. The client backups will be on separate sparse bundle disk images, and the client version of OSX won't back up a disk image that's mounted. Plus, the client version of OSX won't back up Time Machine backups -- they're excluded automatically.
I've never been able to find anything definitive in the Server Manual. Now I see the large Snow Leopard server manual seems to have disappeared, so don't even know where to tell you to look. And Lion server may be different, anyway.
You might want to try the Server forums, at: https://discussions.apple.com/community/servers_enterprise_software

I just exchanged a faulty iPhone 4 for a new one, when I got home to restore it, iCloud says "cannot restore backup". Can somebody please help provide much needed advice? Thanks in advance!

I just exchanged a faulty iPhone 4 for a new one, when I got home to restore it, iCloud says "cannot restore backup". Can somebody please help provide much needed advice? Thanks in advance!

Yep, that's the only message that popped out. Nothing else. Yes, it's running on the latest ios and I still can't restore it. I called apple and they told me it's probably something wrong with their servers. Anyway thanks for the advice.

RMAN Backup Strategy Comment Needed

Hi,
Currently I'm trying to implement a backup strategy with RMAN.
Scenario: My side we're 5 days operational (Monday to Friday). I'm planning my backup as follow:
Mon – Incremental level 1 differential
Tue – Incremental level 1 differential
Wed – Incremental level 1 cumulative
Thurs – Incremental level 1 differential
Fri – Incremental level 0 (aka full database backup)
I planned Mon,Tues and Thurs as an incremental differential, while Wed as an incremental cumulative. With Wed as a cumulative backup, my thinking is that if my db is to fail on Thurs/Fri, my recovery will need to apply fewer backups but at the expense of storage.
Any comment or view about the strategy will be greatly appreciated.
Thanks and Regards
Eugene (ET)

hi,
there is Oracle suggested backup strategy
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/bkup004.htm
other
http://books.google.cz/books?id=3aEIIqRHkY8C&pg=RA1-PA326&lpg=RA1-PA326&dq=oracle+rman+backup+stratery&source=bl&ots=DrnVZ3tZPs&sig=QajKM0SXbpoa3eWZgl5kmwmSUPI&hl=cs&ei=o6xcSvSaCpKwsAbmu8yVDA&sa=X&oi=book_result&ct=result&resnum=4
Regards,
Tom

IPhoto file and backup strategy

I am new to iPhoto in last 9 months, but before I get in too deep, would love some advice about how I am structuring the library and about my backup strategy.
Spent many years on Windows where I would use a typical file Windows file structure. Broke my pics down into years, then events, then pics. Some pictures I would rename "Ella Bday 2006" and others are simply "jpeg-10006". When I moved to the Mac, I've started to use events "Ella Bday 2008" or else "Jan-Mar 2009". I've read that many prefer to create albums and not rely so much on the events. I am not there yet, but that's my next goal.
My questions are multiple. First, what is the best way to backup all this data so that if I crash, I can easily recreate? I backup the windows files in the same file structure as they existed on my HD, but with photos, events, albums, etc I am not sure the best way on the Mac.
I did import all the windows pics into iPhoto -- so now I have a single app for all photos dating back to 2004. I am not using Time Machine (remember I am a newbie) at the moment, and my initial plan is to back up each year to a separate DVD for off-site storage. Once this is done, I will look for a more permanent and recurring backup strategy - Time Machine I suppose - that will use an external HD.
Sorry if my post is convoluted, or if my questions are ignorant, but I was a lifetime Windows guy who is just exploring all the features/functions of Mac -- so any advice or redirection would be fantastic!
Thanks in advance

First, what is the best way to backup all this data so that if I crash, I can easily recreate?
Make a copy of the iPhoto Library in your Pictures Folder. That gets all the photos and database files which contain your organisation.
If you want to burn a copy of the Library to DVD use the Share => Burn command.
FWIW here's my back up system. I used to use DVDs but it was too tedious and a bit expensive too. Remember, if you burn, say 2005 to DVD ths year, you will be burning it again in a couple of years as DVDs to degrade over time.
My Library lives on my iMac.It’s Backed up to two external hard disks every day. These disks are permanently attached to the iMac. These back ups run automatically. One is done by Time Machine, one is a bootable back up done by SuperDuper
It’s also backed up to a portable hard disk when ever new photos are added. This hard disk lives in my car. For security, this disk is password protected. For this job I use DejaVu because it makes a simple back up that is clear and can be tested easily without doing an full restore.
I have a second off-site back up at a relative’s house across town. That’s updated every 3 or 4 months.
My Photos are backed up online. Personally I use SmugMug but there are many options including flickr. However, check the terms of your account carefully. While most sites have free uploading, you will often find that these uploads are limited in terms of the file size, or the bandwidth you can use per month. For access that allows you to upload full size pics with no restrictions you will need to pay.
Every couple of months I test the back ups to make sure they are working correctly. It’s very easy to mis-configure a back up application, and the only way to protect against that is to do a restore.
Regards
TD

Time Capsule backup strategy for multiple drives and OS

I'd like a backup strategy based on Time Capsule but have a few twists from a straightforward situation and would appreciate any guidance with setting it up. My hardware situation is:
- Two MacBooks, on 10.5, one with an 80 gb drive, the other with a 120 gb drive.
- One G4 iMac, on 10.4, with a 60 gb drive
- One LaCie NAS drive, used primarily as the storage space for music and video, and currently not backed up anywhere (making me nervous!)
Ideally I'd like each of these four units to be backed up on Time Capsule; and my configuration questions are in two areas:
1) Backup software: I'll use Time Machine to backup the MacBooks, but not sure about the G4 and NAS drive. These could be backed up on a more ad hoc basis (I don't need hourly updates). Is this best handled with a third party app like SuperDuper to allow for incremental backups?
2) Partition/disk image: is it wise (or indeed necessary) to create partitions for each of the above sources (I gather from reading other posts is seems the best way to achieve a partition is to create a disk image). I'm not sure if there would be any unintended consequences by doing so (or not),and if so if a sparse image disk image is better than a sparse bundle disk image given the above, so any guidance to help make sure it's set up as flexibly as possible from the outset would be greatly appreciated.
Thanks in advance for any advice.

G'day Michael,
Sounds like it is time to buy OS X Server!!!!
I think you are on the right track. As a "left field" suggestion, why not get two big drives, and use one of them as a file server. Get everyone to use the file server for any critical documents that they want backed up centrally/continuously. Then back the file server system up onto the other big drive using TM.
This reduces administration somewhat, and privacy can be retained with careful username management across the network.
Assuming that the three MacBooks are similarly configured from a system perspective, there is not a lot of point in having full bootable clone's of each one. Perhaps create a bootable clone from one of them each week - and clone the other two into disk images (which are not bootable, but are restorable) as frequently as needed.
Cheers,
Rodney

Regarding an External HD Backup Strategy...

I have tried some of the suggestions for a backup strategy and need more help. I partitioned the external drive (LaCie 250 GB via Firewire 800) into three volumes: one volume large enough for a clone of my internal HD, one volume for Mac OS X and TechTool Pro, and one for data.
1. When partitioning using Apple's Disk Utility, I could only choose one "option" for all volumes: the best options included "GUID Partition Table" (If I want to use that disk to start up an Intel-based Mac) or Apple Partition Map (If I want to use that drive as a non-startup disk with any Mac). I checked the box for Mac OS 9 drivers to be installed and chose the Apple Partition Map. I did this because I used SuperDuper! to clone my HD and checked the option to make that backup bootable (which is an option in SuperDuper). Is it still bootable on a non-GUID formatted drive? Are the Mac OS 9 drivers necessary? Does it hurt to have them?
2. When I install Mac OS X and TechTool Pro on the other volume, how do I make that volume bootable? When this is done, do I have to boot from this volume to update to 10.4.9? Will the Mac OS 9 drivers hinder this volume when I try to boot from it?
3. In case I do need to reformat using the GUID Partition Table, can I still store data on a volume that I don't intend to boot from? Should I still install the Mac OS 9 drivers if I am installing Mac OS X?
4. Is there a way to safely test these bootable volumes and the backup?
Thank you for your time and advice.

1. GUID is fine, but you don't need an OS9 drivers on an Intel Mac, no harm if they are on there.
2. At start up you hold down [option] and it will list all possible Boot volumes, select the one you wish to use.
3. Yes you can store data on any format, the main impact the format has in that case is whether the volume is read/write capable from Mac OS and/or Windows.
4. Once you've made your clone of the main hard drive onto the external volume, reboot holding down [option] and try booting from it ...

Need advice on on a Mac Pro 1,1 Media Center

I currently have a 2009 Mac Mini running as my home media center, but I recently came by a FREE Mac Pro 1,1 and have decided to repurpose it as my media center so I can migrate my Mac Mini to my bedroom TV where it will live an easy life doing nothing but run Plex Home Theater, Netflix, and EyeTV. This machine falling into my lap was also quite timely because my 4-bay Drobo is running low on available expansion and another Drobo isn't in the budget at the moment.
This vintage mac pro is running Lion 10.7.5, has 1 old and crusty 500GB hardrive, dual x5160 processors, 4GB RAM (one stick i'm pretty sure is toast judging by the red light and the kernel panics), and the standard NVIDIA GeForce 7300 GT 256MB graphics card. It will be used primarily for the following: network storage for iphoto and itunes libraries, streaming video, Plex Media Server & Plex Home Theater, and Handbrake encoding. I also have a goal of safety of data for my movies, photos and music as this machine will supplement my current Drobo storage.
My plans are for a 128GB SSD boot drive installed in one of the PCIe slots and then to load up all 4 of the 3.5" drive bays with WD Green hard drives. I have also ordered 4GB of replacement RAM, so upon removal of the faulty unit I will have 7GB.
Here is where I need advice because I am not very familiar with RAID and the differences between hardware or software raid. Am I better off getting four drives of the same size and setting them up as RAID 5 (I think) using Apple's RAID utility or should I throw in three 1TB drives and then install a fourth 3TB or 4TB drive as a Time Machine backup for the other three?
Should I upgrade the OSX to the technically unsupported latest version? Or is it not worth the trouble for this application?
Also, is there any benefit to upgrading the graphics card to the ATI Radeon 5770? Would this yield an improved image quality? I am outputting to a Denon AV Reciever and subsequently to a 100" projection screen, if that makes a difference. I also noticed the 5770 has an HDMI port, wich would be nice, but not necessary since I can use a DVI converter and woud still need to use the optical audio out anyway.
Much obliged for any input

My plans are for a 128GB SSD boot drive installed in one of the PCIe slots and then to load up all 4 of the 3.5" drive bays with WD Green hard drives. I have also ordered 4GB of replacement RAM, so upon removal of the faulty unit I will have 7GB.
PCIe cards that use or support SSD are not bootable until you get to 2008 (and that is limited too).
Green are not suited for any form of array unless say NAS and WD RED. Better option would be 3 x 2TB WD Blacks in a mirror, and too many people only use two drives, well 3 is much easier safer and works better. Might want to invest in www.SoftRAID.com product even.
Best price and quality, got my 1,1 with 8 x 2GB (ideal is 4 or 8 DIMMs)
2x2GB FBDIMM DDR2 667MHz @ $25
http://www.amazon.com/BUFFERED-PC2-5300-FB-DIMM-APPLE-Memory/dp/B002ORUUAC/
With price of 250GB SSD $155 I'd go with that or stick with $89 for 128GB .

Long-term retention backup strategy for Oracle 10g

Hello,
I need design a Archivelog, Level 0 and Level 1 long-term retention backup strategy for Oracle 10g, It must be based in Rman with tapes.
¿Somebody could tell me what it's the best option to configure long-term retention backups in Oracle?, "CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 1825 DAYS;" It's posibble ?
Regards and thanks in advance

Hello;
RECOVERY WINDOW is an integer so yes its possible. Does it make sense?
Later My bad, this is Oracle 11 only ( the gavinsoorma link ) . Getting harder and harder to think about 10. Don't think I would use RECOVERY WINDOW.
I would let the tape backup system handle the retention of your rman backups.
Using crosscheck and delete expired commands you can keep the catalog current with the available backups on tape.
Oracle 10
Keeping a Long-Term Backup: Example
http://docs.oracle.com/cd/B19306_01/backup.102/b14191/rcmbackp.htm#i1006840
http://web.njit.edu/info/oracle/DOC/backup.102/b14191/advmaint005.htm
Oracle 11
If you want to keep 5 years worth of backups I might just use KEEP specific date using the UNTIL TIME clause :
keep until time 'sysdate+1825'More info :
RMAN KEEP FOREVER, KEEP UNTIL TIME and FORCE commands
http://gavinsoorma.com/2010/04/rman-keep-forever-keep-until-time-and-force-commands/
Best Regards
mseberg
Edited by: mseberg on Dec 4, 2012 7:20 AM

HT4113 My screen in broken and I need to sync/backup my phone. Please help!!!

My iphone 5 screen went out on me (it is blacked out) and I need to sync/backup my phone before I get it serviced for a new screen. Unfortuantely, I am unable to sync my device to my itunes on my macbook, because it is asking me to enter my passcode to unlock my phone. The only problem is my screen doesn't work so I am unable to do so! I am able to call Siri on my phone, but even she is saying she cannot unlock my phone even if I verbally told her my password. I already have an apple appointment set up, but I didn't realize this question until I got home. I understand my itunes purchases are retrievable- it's my personal photos, notes, videos etc that I am trying to save. My cloud backup is already maxed out, but there is still more stuff on my phone to salvage. I would like to have my phone info backed up before they fix/restore my screen. I risk losing everything! (disclaimer: My previous laptop has been broken so I was unable to do a recent backup, hence my frustration). Please, if you can offer me any constructive advice on how to sync my disabled screen and passcode-locked phone, that would be greatly appreciated!

I am connected to a Mac with OS 10.4. Thank you!

InfoProviders backup Strategy in SAP BW

Hello;
Does any one experienced a backup issue with BW especially when you would like to perform a risky modification. Is there any backup strategy that is supported by SAP for any modifcation senario, if it is a small modification or also a big one affecting one or more infoproviders. if there is any document please share with us.
Regards
Anis

Hi,
After the modification if you want original cube structure mean you need to roll back your transports with help of basis team. About roll back you cross check with basis team
Before doing the changes first have exact informations from your client or users.
If you think like that as need original cube structure then you can on copy cube structure at prod and move to dev thru transport.
When you need same or old cube structure, from dev you can move to prod or roll back option.
Thanks

Best backup strategy

Time Machine is brilliant. It's saved me many times.
But recently, the backup drive with a year's worth of backups, died.
I therefore lost ALL my backups.
Not a major problem as I still have my current data and having re-formatted the Time Machine drive it's merrily backing it all up again. (I just hope I don't need to recover to last week's backup ... as I no longer have it.)
But until that's finished I have NO backups! Eeek!
So what is the best backup strategy, bearing in mind drives can fail, houses can burn down, etc. Should I have two or three Time Machine backup discs and keep swapping them every day so if one dies I've still got a one-day-old version?
Making DVD backups and storing them elsewhere is very time consuming and while my data is really important to me, it defeats the object if I can get on with any work on that data as I'm constantly burning to lotsof DVDs!
Your views would be appreciated!

I pretty much do a similar thing, but my offsite backup goes to a locked cabinet in my office (easier to get to weekly to bring home and update then using a bank - I honestly cannot remember when I last physically went to my bank, its been years).
TM makes a great source for restoring single files or being able to go back to an earlier version of a file. And the clones are easier for full restoration, or even for booting from temporarily if the machines boot drive dies and you just want to get in to deauthorize it before sending in for repairs or such. Always good to have a bootable clone around, for many reasons.
My external clones are on firewire 800 bus powered portable drives, again for simplicity (no power cables or bricks to go with them).
I also still burn to optical disc for specific things like filed tax returns, and other financial documents I need to keep around in the fire safe for some period of time.

Need Advice on Backup strategy

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