Notifications
Clear all
SoftRAID Volumes
9
Posts
3
Users
0
Reactions
9,744
Views
Topic starter
So I'm wondering if this is possible
I have two 2-drive enclosures. Can I create a RAID 1+0 using those two enclosures?
Note: I'm starting out with single 2-drive enclosure configured as RAID 0. I want to add a second enclosure (same size drives) and turn the two enclosures into RAID 1+0. Can I do that?
Posted : 10/04/2019 9:44 am
Yes. I recommend you set both as RAID 0 and then Mirror them. that will effectively be a RAID 1+0. Its better to do that this way with most of these enclosures, as they may not work 100% reliably in raw disk mode with RAID.
Posted : 10/04/2019 10:20 am
Topic starter
Yes. I recommend you set both as RAID 0 and then Mirror them. that will effectively be a RAID 1+0. Its better to do that this way with most of these enclosures, as they may not work 100% reliably in raw disk mode with RAID.
awesome. I'll try it soon after I flesh out the hardware.
Posted : 10/04/2019 11:30 am
Topic starter
One quick clarification. The 2-bay enclosure now which has data and is running RAID 0. Can I add the second enclosure to the first without erasing the first one?
Posted : 10/04/2019 3:35 pm
Yes, SoftRAID will see each enclosure as a "LUN" or single device.
Initialize the second enclosure, then:
"Convert" to SoftRAID.
"Convert to Mirror"
It will rebuild in the background and all data preserved per month.
Posted : 10/04/2019 11:04 pm
This is very similar to what I plan to do, with one caveat -- I'd like to start with one drive per enclosure and add capacity as needed.
The question is : What would be the workflow? Can Softraid recognize and expand volume(s) as drives are added, or will it require something like: (notation is enclosures A and B, drives A1 A2 A3 A4 B1 B2 B3 B4, starting with A1 B1 and adding storage as needed)
1. delete volume B
2. add drive B2 and set B1+B2 as RAID0
3. copy A1 to B1+B2
4. delete volume A
5. add A2 and set A1 + A2 as RAID 0
6. copy B1 + B2 to A1 + A2
7. set A & B as RAID 1
thanks
Posted : 27/04/2019 4:50 pm
Best is just plan on deleting volumes and starting over each time.
We do not allow increasing volume capacity when adding disks to a volume. that is the simple way to think about this. So you cannot add disks to a stripe for example.
Posted : 27/04/2019 8:10 pm
Thanks for your prompt reply.
Posted : 27/04/2019 10:17 pm
This is not the correct process. You can start with a stripe volume, yes. But you then need to Convert to RAID 1+0 with two freshly initialized disks.
It appears your disks are currently in Apple format, so lets simplify this.
I prefer if you Do this clean.
Back up your data. Initialize all 4 disks.
Create a RAID 1+0 volume.
You can create 2 RAID 1+0 volumes if you want.
Copy the data over.
Otherwise you have a lot of steps, and more complicated than you may want to do.
Posted : 12/11/2019 11:41 am
