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possibilities or alternatives for backup solution?

CM_kristof
Level 2

Hi,

We currently work with backup-exec 2012. We currently backup our data (+- 1 TB) on disk and on TAPE (full and differantial).

The disk is being backuped on the LAN, the TAPES are being collected by courrier and returned after a few weeks.

We have to renew our backupserver this year due to expired warranty.

My question is this :

ATM we have a networkspeed of 8Mbits/s. At this rate it would take aprox 35h to backup 1 TB of data (on LAN !). But this is for a full backup, not a differantial backup.

I am wondering, since we have to renew our server, is it still usefull to work with tapes? Are there other ways/methods out there?

Our networkspeed will be crancked up within 2 years. But by my calculations we would need 24Mbits/s to backup our Full TB whithin a acceptable time range (12h). Is there a way to mirror your data ? 

My idea was to set up a second server somewhere in one of our remote offices and push our backup towards that location.

Then we wouldn't have to worry about the tapes etc. If our server on the LAN crashes for whatever reason, we could backup and work from the server on the remote office.

Could someone give me some info on these topics or point me towards the right direction.

Any suggestions are welcome. I'm trying to explorer on this subject to widen my knowledge.

 

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CraigV
Moderator
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...not sure why I only saw this now, but...

1. You backup FileA of 10MB once...

2. Running through folders, it comes to FileA again with a file size of 10MB. The checksum runs and BE finds this is the same file it already has, and then creates a pointer to it without backing it up again.

3. As your dedupe backup runs more often, so your dedupe savings are greater.

Thanks!

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CraigV
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Hi,

 

If this is a 1GB LAN, then your best option right now would be to go to disk first, and then to tape. You're getting the benefits of faster backups and restores, while getting the benefit of longer-term storage when backing up to tape.

In this regard, I'd suggest looking at the dedupe option for BE. Check the links below:

http://www.symantec.com/business/support/index?page=content&id=HOWTO74446

http://www.symantec.com/business/support/index?page=content&id=HOWTO73688

https://www-secure.symantec.com/connect/blogs/new-backup-exec-deduplication-assessment-tool (will indicate how dedupe will work in your environment)

http://www.symantec.com/theme.jsp?themeid=backupexec-deduplication

Dedupe is going to backup files and folders on a block level and basically edit out redundant data by putting in pointers to those files. Backups are smaller, faster and allow more restore points. Data that is sent to tape is, however, rehydrated so bear this in mind.

Thanks!

CM_kristof
Level 2
backup 1     backup 2  
file 1 10 GB   file 6 4 GB
file 2 3 GB   File 2 3,1 GB
file 3 10 MB   file 7 150 MB

file 2 in backup one is replaced by a pointer "reference" to file 2 in backup 2 hereby you'll "win" 3 GB of HDD-usage.

this is my basic interpretation of de dedupe proces. is this correct?

 

CraigV
Moderator
Moderator
Partner    VIP    Accredited

...not sure why I only saw this now, but...

1. You backup FileA of 10MB once...

2. Running through folders, it comes to FileA again with a file size of 10MB. The checksum runs and BE finds this is the same file it already has, and then creates a pointer to it without backing it up again.

3. As your dedupe backup runs more often, so your dedupe savings are greater.

Thanks!