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[rjarl]

Hello all,

I recently own a DNS-320, I just put a brand new 2Tb WD Caviar Green drive inside, the NAS formated it and everything is going perfect.
Now, some days later I have a total of 1,5Tb used so just bought another new 2Tb WD Caviar Green (Same exact model).

I shutdown the NAS, plug it inside and started the NAS again.
Now I can see new buttons at the disk settings section that allows me to Grow the volume by selecting JBOD at the HDD Setting section (Raid1 is mirror and I just want to grow it, and RAID1 for sure will format it because data is stripped)

Because I don't want to lose my data I ask: Doing a JBOD now will erase both disks and results in a new 4Tb empty disk?

I guess it will!!!, So what can I do?? (buy another disk is discarted, not enought money)

1)-Try to make the JBOD - (Will it erase my 1,5Tb files inside the old disk???)
2)-Just add the new one as standard new volume (So I'll have 2 separate volumes) -- żBest option?
3)-Do RAID0 (As it claims to don't erase the old disk, but It wont grow the NAS capacity)

I think that option 2 is the best one, but I prefer a 4Tb Drive Of Course ... any suggestion?

Thanks!
rjarl.

[ivan]

You do have a backup of the data on your drive don't you, in which case it it won't matter which option you use.

A lot depends on what you are using the NAS for.  If you don't have a backup you are risking all your data with JBOD should one drive go down.  With two disks you still get the 4 GB but would only lose what is on one disk if there is a problem with a disk.  If you use RAID 1 you don't loose any data should a disk fail but you don't extend the capacity - just remember RAID is not a backup, it only protects against disk failure.

To sum up, a) you need some form of backup of your data no matter what you do.
b) what is most important, disk capacity or total disk capacity.

[JavaLawyer]

RAID 1 does not stripe the data as you suggested, but rather creates a mirror of the data between both HDDs. There is a procedure to convert a HDD configured as a Standard Volume to a RAID 1 array by adding a second HDD.

Please read the following thread on the pros and cons of different HDD configurations to help you determine which scenario best suits your needs: http://forums.dlink.com/index.php?topic=42033.0

[rjarl]

Thanks for your oppinions guys. Really helpful.

I don't have a backup, that's the thing...

So, I will opt for the Option 2. Just because I don't want to lose my data. And also need those 2Tb to copy data, music and other files.

Thanks for your answers!!
Rjarl

[ivan]

If you don't have a backup then you are asking for trouble in the future should a disk fail - and they do.

[JavaLawyer]

I don't have a backup, that's the thing...

So, I will opt for the Option 2. Just because I don't want to lose my data. And also need those 2Tb to copy data, music and other files.

I presume that "option 2" is configuring both HDDs as Standard Volumes. If you use this route, you can log into the through the DNS-320 web interface and schedule a recurring incremental backup from HDD1 to HDD2 to ensure you data is copies on a regular basis.

[piloo]

Hello
I use my share center DBS320 with the "raid1" solution ( 2x 1Tb)
Is it possible to extend the storage capacity capacity  with one 1Tb HDD using the JBOD solution and, if it is, how to do that?
Thanks
Piloo

 

[rjarl]

I presume that "option 2" is configuring both HDDs as Standard Volumes. If you use this route, you can log into the through the DNS-320 web interface and schedule a recurring incremental backup from HDD1 to HDD2 to ensure you data is copies on a regular basis.

Yeah, that's brilliant! Sure I will.
Thanks
rjarl

[JavaLawyer]

Glad I could help. Post back and let us know how things work out.