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Forum Discussion
ReadyNAS 3100 - Enlarging disks
I have a ReadyNAS 3100 with 4 2 TB HD in RAID 5.
I was told I can replace the 2 TB HD with 3 TB HDs.
marius
I was told I can replace the 2 TB HD with 3 TB HDs.
- Is it correct?
Where can I locate a list of 3TB HDs suitable to be used with the ReadyNAS3100?
Given I can replace the 2TB disks with larger ones, is there any way to replace the disks without losing the current contents of the hard disks?
marius
7 Replies
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- The drive hardware compatibility list is here: http://www.readynas.com/?page_id=82
Are you running RAID-5 or XRAID?
What firmware is the NAS running? - RAID is reported as: RAID X-RAID2
Firmware is: RAIDiator 4.2.19
The exact model is: ReadyNAS 3100 [X-RAID2]
marius - Ok.
Then you can expand to 3 TB by hot-swapping (removing a 2 TB drive, inserting the 3 TB drive in the same slot, and then waiting for the resync and expansion to complete before doing a second drive).
There is an 8 TiB growth limit. Do you know what disks were installed on the original install (or the last factory limit). You can't grow more than 8 TiB from the initial volume size.
You should make a backup first, as the expansion process does stress the disks, and can provoke or uncover disk failures.
It is possibly quicker to do a factory reset procedure and restore the disks from backup, though of course it takes the NAS out of service. StephenB wrote: There is an 8 TiB growth limit. Do you know what disks were installed on the original install (or the last factory limit). You can't grow more than 8 TiB from the initial volume size.
Thank you for the message and the information.
Do you mean that if I replace the 4 existing 2TB disks (8 TB raw disk space corresponding to about 5,4 TB available disk space in RAID) with 4 3 TB disks I will have anyway 8 TB raw disk space corresponding to about 5,4 TB available disk space?
Regards
marius- No. I mean that if you started with a volume size of X TiB then you can't expand it beyond X+8 TiB. This is unlikely to be an issue for in your case. But it is possible (for instance if you started with 2x1TB) , so I mentioned it.
- Than k you again.
So, given the raw sum of my HDs is now 8 TB, my upper limit will be 8+8 TB = 16 TB, is it correct?
Regards
marius - No, what matters is the volume size, not the raw sum. If you started with 5.4 TiB, then you could grow that volume to 13.4 TiB.
Also, the starting point is not what you have now, it is what you initially installed.
There is a second expansion limit of 16 TiB (you can't expand over the 16 TiB boundary, no matter where you start).
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