Expanding my Synology NAS - I think i done goofed

AronChan

Reputable
Mar 3, 2014
19
0
4,510
Hi guys

I have a Synology 413j NAS.

Back when i bought the NAS i fitted it with 2x 3TB WD Red disks. I created a Raid 0 on these disks and was happy.

Now the day has come when i ran out of space and decided to upgrade - I purchased another 3tb WD Red disk and thought everything was fine.

That turned out to be not quite true - I cant seem to find any way to expand my Raid 0 disk unit with the new harddisk. I can add the disk on the side as a new disk unit but then i would have to allocate which folders are located on that disk and i would really like all the storage to be shared on all my disks.

As far as i can see my only option is to somehow backup my 6TB of data somewhere else and create a new raid and then copy back my data. Is this really true? Is there no way i can add the new disk to the current raid0 without having to move 6TB of data arround?

Hope u guys can help me out here xD
 
Solution
AFAIK you cannot expand a RAID 0 array with that unit, only SHR, RAID 5, or RAID 6.

You really should not be using RAID 0 for a storage array though, it has no fault tolerance and if one drive fails all data is lost. There is no speed advantage for RAID 0 in a separate box.

I would stretch my budget a bit and buy one more drive and use 4 drives in RAID 5, so that you will have at least one drive redundancy.

In any case the data should be backed up elsewhere as RAID of any level is not a backup solution, just a fault tolerant form of storage (although RAID 0 is not at all fault tolerant and a drive loss loses all data permanently). Of course, if the data has no importance it may not be worth the expense of protecting, but that...

RealBeast

Titan
Moderator
AFAIK you cannot expand a RAID 0 array with that unit, only SHR, RAID 5, or RAID 6.

You really should not be using RAID 0 for a storage array though, it has no fault tolerance and if one drive fails all data is lost. There is no speed advantage for RAID 0 in a separate box.

I would stretch my budget a bit and buy one more drive and use 4 drives in RAID 5, so that you will have at least one drive redundancy.

In any case the data should be backed up elsewhere as RAID of any level is not a backup solution, just a fault tolerant form of storage (although RAID 0 is not at all fault tolerant and a drive loss loses all data permanently). Of course, if the data has no importance it may not be worth the expense of protecting, but that is usually not the case.

RAID 0 was useful before SSDs to speed up OS disks, but the need for backup was clear. I used 4 disk RAID 0 on many rigs with Raptors for the speed, but now RAID 0 has no rational use IMO. With the large drives that we have today, even RAID 5 has limits due to the potential for a URE on one of the disks that does not fail making the array incapable of rebuilding.
 
Solution