I am using RAID5 with 5 drives in a failed enclosure. Can I put them back in this in the same order and have all data intact?
993926
I believe so. I have a 5 drive raid at home & brought a new one home that I purchased for work & put the 5 drives in & the raid came right back. To me, this was VERY important if I ever have a failed Raid box. So in my case, it worked-but I did buy the 2 enclosures within a month of each other.
993927
No, it will initialize the array when you put the drives in. You will have to move the data first.
993928
Update-I did have to put in 5 old, dummy drives to setup the Raid 5 on the new box & then put in my 5 drives, in order of course, & the Raid came right back up. I just happened to have 5 old drives to use. Otherwise, I don't think you can do it any other way.
750550
The documentation is a bit unclear on this. In one place it says to use the same size drive, but in the "Replacing a Drive" section is says that you should use the same size or larger, but the extra capacity would be unused. Assuming you are using RAID1 then you should use the same size drives. The drives are SATA interface. I used two identical (same manufacturer, model and probably the same lot) 2TB drives in my configuration.
647148
yes can put any size drive in the bays that you'd like, but if you want them to be part of a raid, they have to be all of a matching gb size. I have 3 2tb drives set up as a raid, and a couple of randomly size drives as backups that aren't included in the raid. overall it's a very versatile piece of equipment.
608436
It's a single disk hard drive. You could format it to have two partitions, but that won't give you physical redundancy. If you need the redundancy of a raid system you're going to have to move up to one.
1372202
use the Synology setup software and let it configure your raid (in this case it will likely use RAID5) ... if you are in need of extra redundancy due to high data security, switch to the manual setup and use RAID6 ... this configuration will use 2 spare drives and will reduce the amount of disk available significantly (the price to pay for very high data availability)DLLD
1787153
I agree with David, you can set it to Raid 0 for full storage space use. I prefer using Raid 1 for protection even though you drop the usable space in half. I like having my data replicated in case of failure.
399563
Yes, you can have any number of hard drives installed (from 1 to 5), you will be limited to certain Raid configurations depending on the number of drives installed. Synology website is very useful in helping to determine the proper configuration.
558270
RAID 0,1 and SHR (Synology Hybrid Raid). With only 2 drives you can't get 5.
327902
No add them as you need them. You do need at least 2 or 3 (I don't remember which) for their flavor of RAID to work for data protection. Drives will be reformatted when inserted!
2156759
Using 5 drives without redundancy is just asking for problems... I would venture to say that one of those drives is going to fail within a year. I have a 2x 2GB RAID1 system for the past 4 years, and had to re-sync them once. In the last 15 years I've had ~5 drives crash or get corrupted. Never again will I leave valuable data in only one drive.
733723
We have over 15 of these and they are very dependable. Use RAID 5 to keep your data if a drive fails. Tech support is excellent in responding and getting a replacement drive out to you.
1737914
I asked Oyen Digital Tech Support this question (they are very responsive). This was their reply: "If a 3-drive RAID 5 set is created, and a 4th drive is added later, it will be a hot-spare drive. The Mobius does not have the ability to add the 4th drive to the original 3-drive set. The only way to accomplish this is to clear the original RAID and recreate a new 4-drive RAID 5 set." Back to me. Another option is to use software RAID. You would put the enclosure in JBOD ("Just a bunch of Disks") mode, and create your 3-drive RAID set with the software. Then when you add a 4th or a 5th drive it will either be treated as an independent drive, or can be part of yet another RAID set.
1052675
All switches are down for clear RAID, or JBOD ("Just a Bunch Of Disks"). That should be how the enclosure arrives. If the disks you are installing were not previously part of a RAID, then your original data will remain intact.
2235683
Using X-RAID is the only way to make that work. But you are limited to 1 volume, if you want more than 1 volume you would turn off X-RAID but you cant go back without reformatting your drives. X-RAID will manage your redundancy
619203
Yes. As long as you have the correct number of drives for the RAID type, you can have as many as you want.
43198
Not sure why you would want to do it that way. With mirrored drives you already have drive redundancy. If a drive goes bad, pull it out and put in the new drive. There are better ways to provide for offsite backup than to keep pulling a drive and having the raid rebuild itself.
889483
No. All existing data is lost and the drives are reformatted in creating the RAID.