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- เผยแพร่เมื่อ 7 ส.ค. 2020
- When using a RAID / SHR on Synology NAS, you do not have to fill all of your drive bays at the same time. Instead you can start out small and grow over time by adding additional drives later on! In this tutorial we are going to cover how to expand a RAID Pool on Synology NAS by adding an additional drive, as well some important things to know before you expand your pool!
Adding in an additional drive to your Synology's RAID Pool is incredibly easy to do! Once you get everything set up it ends up being as easy as plugging in the additional drive into your Synology and after a couple of clicks in DSM you are off to the races! This tutorial covers everything you need to know to add in an additional drive into your dive pool!
#Tutorial #Synology #ExpandRAID
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This Tutorial in Text: www.spacerex.co/expand-raid-s...
Supported RAID Types for Drive Expansion:
JBOD, RAID 5, RAID 6, RAID F1, SHR1, SHR2
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SHR vs RAID: • SHR vs RAID for Synolo...
Using Hyper Backup to backup your NAS: • Synology HyperBackup t...
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Thank you for taking the time to make this video. It was exactly what I needed to know before building my first NAS array as I'm starting off with a single drive but planned to expand over time.
Thank you for this video - Is writing the Dummy data in addition to the extended SMART test absolutely necessary? Can you please help with the steps on what this script would entail on the synology NAS?
Great video as always. How would you expand storage space in a DS220J when there is not slots available? Thanks!
Life saver! can't thank you enough for taking the time to make this video. You are a delight, Sir!
Happy to help!
Really excellent videos - very clear and understandable! You are doing a great job! Question: I'm expanding my DS1821+ with more 16TB IronWolf drives. Currently, 4 bays (16TB each) are populated, using SHR. Should I consider switching to SHR-2 before I "Add Drives" for the next 4 bays or should I stick with SHR? And, is there any benefit (less stress) to adding one drive at a time rather than adding all 4 drives at once?
Hi Rex, I have a question. I currently have 2x WD60EFZX drives in RAID-1 in a DS420. I want to add two new drives. Can I use a different model, like WD60EFPX as example? They are both CMR.. Or is it better to have exactly the same models?
Very well done and love video quality, I am about to start 4K videos as well and hence looking for Synology for archiving all those videos
Another informative, well explained video.
Thank you.
Glad you like them! Honestly they are mostly just things that interest me and now there is an excuse to do them!
Do have a question have a 1019+ 3 months old with all filled with 8TB each, can i take one of the drives out and put in a replacement a 14TB drive as not right away but in due time they will all be 14TB drives. following your video will that work or another video or reference link i can follow using raid 6
Very good and clear explanation, one of the better ones online. Like the tips on testing speed before and after as well as setting expectations on the time invested to complete the tasks with caveats explained. Thank you so much Sir. ...p.s. just ordered an additional drive to populate one of the two empty bays.
oh nice!
Can you make a video showing how to Clone the drive on the DSM 7. I have a 2-6TB Drive and 1-14TB and I want to replace one of those 6TB for a 14TB so i can use the 6TB for a Back up! I have the DS1019+ also I'm on SHR
Thanks for the Vid Rex
That was fast lol
Hello SpaceRex,
I have a concern, did you already tried a expansion bay?
What i mean is like i have a nas example
rs1619xs+ and all bay is already 16TB
and i been thingking is to expand to put another expansion synology nas so the storage will be more bigger let me know if already tried that or tutorial video.
Thank you
In your example you have one volume, so the space from the new drive got added to the existing volume. What happens if you had multiple volumes? Will the space be evenly distributed between each volume automatically?
very good, thx bro !
Question: can you add more than one HD to the storage pool? Or do you need to add one drive at a time?
Great Video, but I have a question. I have a 4 bay NAS that's 10 years old filled with 3TB disks. Can I put two 16TB in and reduce the number of disk in preparation for my 720+ coming soon. I only see methods to increase the size of the volume but not reduce to less disks.
Would you recommend adding 2 16tb red pro drives in the DS218+?
Hello! First, thanks for producing great informative videos. I have a question, I have a 5-bay Synology Disk Station and it's 86% full I'm using 8TB hard drives. I want to upgrade to an 8 Bay Dish Station, I want to use the existing 8TB hard drives and add 12 TB hard drives without losing data. Is this possible? and if so what's the best way of doing so? Eventually I would like to upgrade allod my existing hard drives to 12 TB. Thanks for taking the time to read this and hopefully answer.
Thanks for the info. Do you have a video for upgrading from RAID 5 to 6? I followed this video and it expanded the pool but even with 4 drives it says I don't have enough to go from RAID 5 > 6.
currently added my expansion unit as a combined pool without really looking into it before. Does anyone use them as one giant pool and have any issues?
Nice tip for creating separate volumes, thanks.
Glad it was helpful!
Hi, I’m stuck! I’m in the process of adding a new drive, but just before the Confirm Settings window, I have an option to “Expand the volume by using unallocated capacity”.
I’m unsure if I should check this or not, don’t quite understand what it means.
Haven’t seen this mentioned anywhere online yet.
Really enjoy your videos. I have used to safely update my 1621+ with 2 12 Tb drives - IronWolfPro ST12000NE0008-2YW101. i did the smart test and all is fine for both drives. I tried to add them to the pool or 2 WD 12 Tb drives and get an error message that they are not tested for compatibility. I updated the list as recommended and found this discrepancy IronWolfPro ST12000NE0008 - 2PK103 is approved (last 6 characters are different) Any idea what those characters represent and /or the significance? how safe to use drives and add them to the pool? Thanks in advance.
Can expanding times change during the process? And does SHR2 make things take longer? I have 4 6TB 5400RPM drives set up as a SHR2. Only 5.5 TBs used. I'm adding a 5th 6TB 5400RPM to the RAID. It was about 20% after day 1. About 40% after day 2. And now I'm getting only 4-5% a day all of a sudden. All drives show to be healthy. I only run PLEX and Home Assistant locally on the server. Is this normal or is something wrong?
Im ordering now DS1522+ and im planning to start with 3x 12Tb ironwolf and in a month or two Im planning to add another 12TB identical drive and so on just for budget reasons I was wondering if theres an update on the information in this video i will be using single volume single pool SHR after checking health for all the drive the process should go just as straightforward as add drive > expand
Is there any tips Im little worried about it specially what i learn in this video about stressing the drives could affect their life span or performance
Hello I have a DS7 and in the Storege Manager the hot spare is missing. Can you help? I have a DS720+
Thanks for the video can't find how to test the drives before putting then on synology
Open Storage Manager then Go to the HDD/SSD Tab. select the drive you want to test and select Health Info button in top left. In the new Window select the SMARTS tab and select the test you want and hit start. You will need to run these steps for each drive if you are doing it by hand and can run them on all if you wish. If you want to test the drives on set dates and times you can set that under Test Schedule. I have Iron Wolf Drives so I run a Quick SMARTS and the IRON Wolf Self Test set to run nightly with an Extended set Monthly.
Thank you, awesome as always!
I increased my 6TB SHR pool that was full with another 6TB, it's going to take forever. Do I benefit from a volume capacity increase whilst the rebuilding is in progress? I don't know if I should pause my Google Drive backup syncing or not.
Thanks man! So you only get the data at the end unfortunately :(
"Multiple-Volume Storage Pool" needs to be enabled if I want 20TB in a 5, 5, 10, 10TB SHR setup? What is I did not enable? I have to add drive to give me a chance to enable?
If I have no bays free but I have SHR, how do I expand my storage pool? Do I need to just take one HDD out first to create a free bay? That sounds scary! Will it be able to rebuild my volume on the new (bigger) drive?
Can we expand the storage by connectin Synology device with an external hard drive or external hard drive racks? Like server racks
You can use usb drives as usb drives. If you want disk shelves / expansions you have to get synologys proprietary expansion shelves
Will you lose speed when creating multiple volumes?
Interesting. I bought a ds1821+ and was planning to get 8 - Seagate exos 16tb drives all at once which would be well over $2k but judging by this I can just buy 2 drives and create an SHR volume and expand over time. thank you.
Yes you absolutely should start small and grow over time!
Thanks a lot. But what if we need to remove one drive from array what should we do? How can we shrink our system from 5 to 4 drive?
You have to format and rebuild
Thank you for all the explanation! Quick question, say I buy 4x8TB drives: that results in 24 GB and 8 for Redundancy (protection), how does the NAS know which files to backup? If I fill up the entire 24 TB but there's only 8 for data protection? I'm planning on using the NAS for my music/movies mainly (which I dont care if they get lost), but also I'd like to add photos/important documents in it as well, can I point out specific folders that would go in that 8 TB protection drive?
So that redundancy is based off of math called parity math. a calculation was done on every one of the bits across all the drives with data and the result is stored in the parity drive. Then any one drive you loose can be reconstructed based off of that math.
This is ultra simplified, in reality the parity is stored on every one of the drives
@@SpaceRexWill ohhh didn’t know that was posible to recover data with much less space, thanks for the explanation! So basically i can have 20 tb and only 6 of redundancy?
If you have say 3 free bays, could you add 3 drives at one time or do you have to insert 1, wait for it to rebuild then add the 2nd drive etc
You can add as many disks at the same time (you just tick as many disks you want to add) at or past disks(or if the disks are over 4tb in size each) really should use RAID6 or SHR2 so you can survive more. Then 1 disk failure, its also significantly more safe to expand/replace a disk in raod6/SHR2 because you Still have redundancy when a disk has failed or been replaced or added (raid1/5 you don't have any redundancy while a disks is been replaced or added)
First thanks for your video. I am planing to add more for my synology drive. My current synology nas Raid5 with 5 Hard Disk already and my data nearly full. So plan add more 3 slot Hard Disk the same size before. But do like you is our old data that store in old Raid5 still safe right ? and when initial 3 disk more it will erase only 3 new disk right ? Thanks advance!
Yes! As long as you are not removing the old disks. I would still make sure to have a UPS just in case
Thanks so much
Probably a daft question, but if you have SHR is the process essentially the same? I don’t have a NAS yet but seriously looking at picking up a DS920+ so trying to learn as much about it all as I can up front :-)
Exactly the same!
i just added a new 4TB exos to my ds213.. but no way i can expand the storage either SHR OR JOBD X_X
What does it show you?
I just got my first Synology DS2415+. I got 3TB in eight bays. it's on SHR now. I am thinking of adding Two more drives (6TB each). Can I expand my current SHR or Do I have to format it to RAID 5 first? NOTE: I don't have any files on the unit yet so I don't have issue reformatting it. Thanks
Do you have any videos covering replacing ALL of the drives in a synology? I have a new 6 bay unit. I tossed in a spare HDD so I could play around with it while I waited for UPS to deliver my 6 drives for it. When those come in, whats the fastest method to get all the new drives in it and migrate whatever it needs from that one existing drive/volume so that can be removed?
The fastest thing to do would be just to redo what you did on the single drive.
Otherwise you can set it up as SHR1 and just keep expanding the storage out, then replace the drive. But this could take weeks
@@SpaceRexWill What are the downsides of starting front scratch like that? Will I lose the super awesome name I picked for my quickconnect.to access? I wasn't sure if that was tied to the MAC of the machine or some configuration that was generated during the setup phase that I would lose by just yanking out the drive.
the quick connect name should be tied to your Synology login, which means you can just switch it over. If you want general control panel stuff to stay what you can do is put in the 5 drives and create them as volume 2 and SHR1. Then eject volume 1 (the single drive) and add in the 6th drive and click "expand". This will keep all of your general settings and can allow you to copy the data from the first hard drive to the second
Very helpful vid, just followed it and worked great. Thanks. Maybe the webcam view could be a bit smaller in future vids (nothing personal!) as it feels like it's cutting off a lot of the NAS screen
Haha I try to make sure that it doesn’t cover anything important. Though I probably need to find a good size for it
Does expanding SHR drives erases the files in the current pool?
No
@@SpaceRexWill thanks!
Not sure if I have asked this before or not. I see you have this as a Raid 5, is this better than just having it be a SHR volume?
I personally started off with RAID5 because I originally though there would be a greater speed difference between SHR and RAID5. However now I have not really been able to see any difference in my own testing: th-cam.com/video/5e-6fPTZw9w/w-d-xo.html
went from a 2 bay raid 1 array to a 4 bay. I migrated my two drives over and they remained raid 1 I assume. I added two more drives but could not add them. It was grayed out. I went in and changed raid to raid 5 and that seemed to start the process. I hope I did this correctly. It seems to be taking a very long time but it is progressing.
That is what you want! RAID5 will give you one disk of redundancy
Great video. But I would say if your NAS is new and you are setting it up, expanding it, having backups, to chose the option to STRESS it more - better to know early...trial by fire!
Haha I would say most people with a new NAS are not going to be expanding as they will just natively have the data on there
I have a storage pool of 3HD in raid 1 and i would like to add another hard drive in the same pool in order to change it in to raid 10. In the storage pool i see only raid 1,5 and 6 not 10. How can i do it?
You cannot expand to raid 10
What happens when ur rebuilding a raid and u lose power and u have a ups and that runs out and synology shuts down when the power comes back would it just continue
So the expansion processes is by design resume-able. I have clients who have had the exact same case as you laid out and when the NAS booted back up everything was fine.
Its higher risk then normal, but your data should be safe. I would take a backup before just to be safe!
My storage manager looks all different. The storage pool is under storage. Could you re-do the video, please? Thanks! Recommendation: If you shrink your video to square and smaller we could see more of the windows...
after i expanded the pool, can i expand now my volume?
in my case, i allocated the entire capacity of pool to a single volume. Thank you :)
btw, very helpful video this is what im looking actually
Oh yes! Totally forgot that some people configured multiple volumes on a single pool. But yes yes you can
Just curious as I'm shortly going to be setting up my new Synology. From previous videos, you've strongly recommended using SHR over conventional RAID, so just puzzled over your choice of RAID 5 on the NAS in this video.
Part of the reason I push it is I regret not doing it on my NAS. I don’t have the time to totally redo it either, so I am stuck with RAID5
@@SpaceRexWill Thank you for responding so promptly. I understand and will be setting up my first Synology using SHR 1.
Great video, thank you. Let's say I have Raid5 (three 4TB drives). Then I want to add additional drive. To fully utilize Raid5 it should be 4TB too. But what about 8TB drive? In the calculator (www.synology.com/en-global/support/RAID_calculator?hdds=4%20TB|4%20TB|4%20TB|8%20TB) 4TB is displayed as "unused". But could it be actually utilized in Synology DS (without redundancy of course) for things I don't care much - like downloads?
You unfortunately cannot. DSM has no way of utilizing this space
11:10 are you sure raid6 would take longer? Adding second parity disk seems to be easier job than merging new disk into shr/raid5 pool
The parity math of RAID6 is much more complex than that of RAID5
I have 2 storage pools existing. 1 is raid 10. 1 is raid 5. I've installed 2 additional drives into the empty drive bays. my drives are healthy and initialized. I cant add the drives to the raid 10 storage pool. The add drive button is greyed out. The button isn't greyed out on the raid5 storage pool. I need to add to the raid 10 storage pool as we're running out of space. HELP.
Unfortunately you are unable to expand a raid10 pool on synology
I know this is an older video but only a little over a year old. I got as far as 7:34 and most of the menu items you selected never showed up for me with my version (I just got this drive yesterday). Do you have an updated video or can you point me to one with the latest software update?
All the same logic still applies, but now you just go under "storage pool" and there should be three dots to the right. Thats where you should find the expand raid option
kb.synology.com/en-us/DSM/help/DSM/StorageManager/storage_pool_expand_add_disk?version=7
@@SpaceRexWill Thanks so much for responding. I don't mean to be an idiot but this is my first time setting up a RAID. The Info under the Storage Pool (in the Storage Manager), says RAID type: Synology Hybrid RAID (SHR) (With data protection for 1-drive fault tolerance) Does this mean that all the data on the 1st drive is automatically duplicated on the 2nd? I think it does but I just want to be sure before I delete the files off my computer.
Guys, I have 3TB in syno and I'd like to expand it to 8TB using two 8TB drives BUT remove that old 3TB drive because it's too old. What should I do?
If you just have one 3TB drive add the first 8 TB drive and set it as SHR1 (you will have 3TB usable after) then backup your important data, confirm you are on SHR 1 or RAID1 with the 8 and the 3 drive.
Then shut down the NAS and replace the 3 with the second 8 and rebuild. If anything goes wrong the 3TB will still have all of the data
@@SpaceRexWill Thanks a lot!! The only difference is that I have already backed up data from 3TB drive.
i have 4 using 18Tb. and have 4 spare 12TB drives. can I use these?? or do they have to be bigger??
They have to be bigger
@@SpaceRexWill really oh no on the DS1821+ with SHR?? so what will happen if I put four of these 12TBs in. Wouldnt they work?
@@focusandcreatenow I tried to put a 12 TB with my 18 TB NAS. It wouldn't let me use it at all.
10:20 Haha! 😂 😂
Could you consider re-doing this video? I found the settings you mention but they were all in different places. Would be easier for others to follow in the future if you could update for DSM 7.
Thanks for all your videos! I just set you a email with a technical question about swapping several drives at once. I would love to know your thoughts if you have the time. Thanks in Advance...
Replies!
Me: *sitting here, thinking I can just slot in the new drive and add it in minutes*
S.Rex: 2:10
Me: Fuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
(Thank you for helping us Noobs out Rex :-) )
Add drive is missing from my NAS. What else I can do ?
You can only do this with SHR1/2 or RAID5/6. otherwise you just need to make a new volume
@@SpaceRexWill Thanks for a tip. I manage to create another volume but it is not showing up in File station. Any other setting to play around ?
Without UPS, expanding drive pool is high risk. The whole volume is vulnerable during expansion, isn't it?
While it is safer to use a UPS the process of expanding a drive is resumable
I have DSM7 and I'm not seeing of these settings.
It moved to the volume settings
@@SpaceRexWill as in the three dots in the upper right, in volume? All I see is "change raid type". I'm a 100% noob and I may not even know how to go about doing what I'd like to do/have happen.
I bought a bigger HDD hoping to add storage. I have a 10t HDD and it's full of my media. I bought a 18t HDD hoping that would make my usable space increase. But it isn't. I can see the second drive but it's not utilizing the extra space.
Loved the video but I noticed you missed a critical step, you only added it to the disk pool but did not make it available for use for storing extra data. AKA after adding it to the pool if you look at available storage space if you are connected to the File share you will notice it is unchanged. After the drive finishes adding to the Storage Pool you have to go to Volume tab and select configure on the Volume. In this window you can now select to allocate all or some the space of the drive then press OK and it will start expanding the Volume. This step takes far less time on my NAS with 8x4TB drives it took less than an hour if I remember right about 10-15mins.
Interesting. What volume type are you running. For me I did not have to do this at all, but I set mine up as a single volume
@@SpaceRexWill running on an older DS1817 base original model not the newer DS1817+. Base original model only supports EXT4 partition. It also does not support btrfs sadly. Is this perhaps a new vs old NAS difference in steps? Might be worth testing. I only have one Volume as well. Also noticed defrag option is grayed out as well on mine...
the nas is a ds414 with 6.2
I don't know about you guy's but everytime @SpaceRex talks, it's almost like he's making romance with me. 😅
You start with telling what to do and then after a few sentrncrs you say..... what I forget to say or what you have to do first... that very anoying. Just tell everything in the right order
I have a 4TB drive and I want to add a 2TB SSD, is that possible?