Starting with only one HD [merged thread]

[skwakk]

Yes, you can have two SHR 1-disk volumes, there is no advantage/disadvantage compared to 'basic' volumes during usage, and if you later decide to expand it should make it easy to add a mirroring disk.

thanks maxxfi! when I do move them in a four bay disk with two additional drives would I be able to expand them to a full SHR setup with 1 disk redundancy..or only mirror each disk with the two new drives since they are both separate volumes to begin with…meaning would they just be like two Raid 1 setups?

[maxxfi]

thanks maxxfi! when I do move them in a four bay disk with two additional drives would I be able to expand them to a full SHR setup with 1 disk redundancy..or only mirror each disk with the two new drives since they are both separate volumes to begin with…meaning would they just be like two Raid 1 setups?

Hmm... I'm not sure I understand your question, sorry.
Anyway, adding a disk to a 1-disk SHR is the same as saying "adding a mirror" or "expand to a full SHR with 1-disk redundancy" or "making it a RAID 1 array" (as SHR with two disks is effectively a RAID 1).
Or are you talking about 'merging' the volumes?

[skwakk]

thanks maxxfi! when I do move them in a four bay disk with two additional drives would I be able to expand them to a full SHR setup with 1 disk redundancy..or only mirror each disk with the two new drives since they are both separate volumes to begin with…meaning would they just be like two Raid 1 setups?

Hmm... I'm not sure I understand your question, sorry.
Anyway, adding a disk to a 1-disk SHR is the same as saying "adding a mirror" or "expand to a full SHR with 1-disk redundancy" or "making it a RAID 1 array" (as SHR with two disks is effectively a RAID 1).
Or are you talking about 'merging' the volumes?

Hi..yeah sorry..I meant merging those two separate SHR disks and finally creating a full SHR 4 disk setup with protection. Is that possible without losing the data?

[HarryPotter]

You can not merge them keeping your data on both of course.

Remove volume2 (data on this disk will be lost)
Expand volume1 with 2nd disk (data on volume1 will be kept).

[zZarZiLLoSs]

Good take this opportunity to introduce myself and continue this great forum because I have a big problem.
I recently purchased a DS411J have two HDD ==> 1 Tera + 2 Tera TOTAL 3 Tera.
Initially got in the NAS of the capacity 1 Tera I think unity in SHR and pass all the data and my information to the.
When introduced on 2 Tera me together it in the same group of disks but he saw no additional capacity.
Then remove the Group of disks and now all the data have disappeared me.
You can retrieve data please?

Thanks and sorry for my English I'm Spanish.

https://docs.google.com/open?id=0B--P0N ... k1yMjdsbTQ
https://docs.google.com/open?id=0B--P0N ... E1vWGJ6NjA
https://docs.google.com/open?id=0B--P0N ... HQ2c2x2bEE
https://docs.google.com/open?id=0B--P0N ... HY5dHNGUWM

[KeithW]

Hello,
I am new to this and I am planning to purchase a DS212j. Due to the high prices of hard drives at the time my plan is to use an old 500GB disk for now. In the future I want to use two 2TB disks in Raid1. My question is if it is possible (and easy) to go from one 500GB disk to two 2TB disks without loosing the data I will store on the old disk?

Yes this is possible, no problem.

Hi,
I have read the full thread for this.. and not seen the detail yet , for the above scenario,

Similar plan from me going from single 1TB to SHR/mirrored 2*3TB without data loss - preferably .

Can you please explain how this works e.g. 1 * 1TB (SHR) , then add 3TB , let it do its stuff - 1TB Mirrored. remove 1TB (degraded 1TB SHR?) , then Add new final 3TB, (rebuilds SHR to 1TB) , then expand volume/storage to the full 3TB SHR is that how it works

Many thanks.

[maxxfi]

Can you please explain how this works e.g. 1 * 1TB (SHR) , then add 3TB , let it do its stuff - 1TB Mirrored. remove 1TB (degraded 1TB SHR?) , then Add new final 3TB, (rebuilds SHR to 1TB) , then expand volume/storage to the full 3TB SHR is that how it works

Just like that.

[Mirax]

Hi
I am thinking of buying the 411j, but only add one disk a Western Digital 2TB at first. From what I can read it would be a good idea to use SHR, is this something I need to configure the first disk with? or is it something i do when i add the second disk? and would it result in loss of data? (planning on adding the same type of disk, or the 3TB version)

How much storage would I have access to, if I add 4 x 2TB and set it up with SHR?

[HarryPotter]

Hi
I am thinking of buying the 411j, but only add one disk a Western Digital 2TB at first. From what I can read it would be a good idea to use SHR, is this something I need to configure the first disk with? or is it something i do when i add the second disk? and would it result in loss of data? (planning on adding the same type of disk, or the 3TB version)
How much storage would I have access to, if I add 4 x 2TB and set it up with SHR?

- nothing special to configure with first disk
- ading 2nd disk by expanding first volume
- no data loss in this case

As long as all HD are of same size, SHR is nothing else than RAID1 (2 disks) or RAID5 (> 2 disks).

=> 4 x 2 TB = 6 TB

[AlterB]

Hi, I'm new and need a little guidance.

I just recieved a 411j.

My plan (based on this)

http://forum.synology.com/wiki/index.ph ... id_RAID%3F

is as follows:

slot 1 slot 2 slot 3 slot 4
1.00 1.50 2.00 3.00

total space 7.50
redundency 3.00
available 4.50

My first action was to install the 1.0TB in slot one and create Volume 1. It seemed to work fine.

Next I added the other 3 drives. Disk Manager shows...

Name: Volume 1
Type: SHR with data protection of 1 disk fault-tolerance
Status: expanding (adding disk 30.87%)
Capacity: 912.45GB
Used: 26.87GB
Available: 855.58GB

Disk info
DS411j disk 1 931gb normal
DS411j disk 2 1.36tb normal
DS411j disk 2 1.82tb normal
DS411j disk 2 2.73tb normal

Will the available space expand to the 4.5 I expected? If no, why not? What are the steps I need to take to get the max SHR space out of my config?

[HarryPotter]

Yes, when expanding is finished you should have ~4.5 TB

[Fieldserv]

I have 2 drives on my DS212j.
1. 2TB SHR showing as Volume 1 in my 'Storage Manager'.
2. 1TB SHR showing as Volume 2 in my 'Storage Manager'. (installed 3 months later)

From what I've read here these are 2 independent volumes of each other, although they are SHR. Am I understanding this correctly, and would data on each of those drives be accessible if taken out and plugged into a Linux box(ext4)?

2nd question...
In my DSM 'File Browser' I can only see what is stored on Vol1. How do I get access to Vol2?

Thanks.
The "Manage" button on both Volumes is grayed out.

[HarryPotter]

From what I've read here these are 2 independent volumes of each other, although they are SHR. Am I understanding this correctly, and would data on each of those drives be accessible if taken out and plugged into a Linux box(ext4)?

Yes

How do I get access to Vol2?

Create shares on the 2nd volume....

The "Manage" button on both Volumes is grayed out.

Because there IS nothing to manage.

[AlterB]

Yes, when expanding is finished you should have ~4.5 TB

Thank you. Yes, it took about a day and a half, but it did expand to the 4.x TB as expected.

[torflo]

Hi,

I have two 1TB disk in my synology nas, they where not installed at the same time. But both where configured with SHR. Now i have to volumes, one half full and one all free. in filemanager it says that i only hav 430GB free space. From what i understand, the SHR works like a raid 1 in this setup, right? But when im at storage management, it says that both my volumes are in SHR (without data protection), what does that mean?

Best regards