Thanks so much, I have been vacillating back and forth between Raid 10 and SHR1 and now I will do SHR1 on my Syn. 920+ and use the usb copy for backups.
This didn't discuss what is required to recover data from a borked SHR system. When my Drobo (with their proprietary system) NAS wouldn't come back up after a sudden power outage, I found out how expensive it was to recover data from (or just repair) proprietary systems like theirs. The data was all there, but the organization was scrambled enough that it required specialist recovery. I'm not clear if Synology SHR has the same problem, and this video didn't address it. I've learned from this experience to use a UPS with a NAS and the associated on-site backup system. But the next time I set up a NAS, I'm considering RAID 5, 6 or 10 instead of a proprietary system because of the potential of free/open-source recovery options rather than expensive specialist recovery being the only possibility.
I had the same question coming here, found out synolgy described it faster and better; www.synology.com/en-global/knowledgebase/DSM/tutorial/Storage/How_can_I_recover_data_from_my_DiskStation_using_a_PC TLDR its mdadm raids in one lvm2 volume.
I've played with raid long ago and forgot but never was told clearly the way you explained it. With your explanation, now I know clearer what my Synology product does. Thanks!
I was going to choose RADE 6 as I would only use the same drive size but you mentioned with SHR you can move from one Synology to another. Does that mean if the NAS dies or I upgrade to a newer one SHR 2 would be easier and less painful than if I choose RADE 6. Cheers
I used SHR because it's what was recommended and I do whatever process the official people recommend because I'm good with computers but I'm not good enough to trust myself with sensitive data.
Hi I love your channel, great info! I have a question I hope you can help me with. I had a DS411 en bought a new DS920+. I transferred two HDD's from the old to the new (SHR) and it works great. I want to use virtual machine but my structure is EXT4 and it requires BTRFS. Now my plan: I want to eject disk 2 so the systems says there is a damaged disk while booting up. Then I want to erase disk 2 and make a new volume with BTRFS. Then I want to copy al the data from disk 1 to disk 2. Then I want to erase disk 1 and make a SHR pool with disk 2. Do you think this is a good plan? Or do you think I can't copy the data, because I don't know for sure with SHR if it's an exact clone or something like a blueprint. Thank you in advance for your help!
No Raid 1 is not 2 drives cloning each other it means one drive is cloned to all other drives. It depends on how save you want to be. You can also clone this first drive to 3 others in a four bay nas.
I'm pgrading from a DS218play to a DS920+. I have 2 8TB 5400RPM WD Red drives that are running out of room. Can I add a single 12TB 7200RPM WD Red drive or do I need to stick with 5400RPM?
Thanks for the support buddy. Appreciate that you took the time to donate and support content creators. As revenue is getting smaller and regardless of the amount, it's always hugely motivating when someone supports my work. Thank you for being awesome!
Say u have 4,6,8 and,8TB. With SHR, what total size u get? 4 + 4 + 4 + 4 => 12 0 + 2 + 2 + 2 => 4 0 + 0 + 2 + 2 => 2 So I have 12 + 4 + 2 = 18TB? Am I understanding SHR correctly? I actually have 3.6, 9.1, 10.9 and 10.9TB and now I see 18.2TB. Why not 23.6TB?
@@rickb9434 based on this, it should be readable: www.synology.com/en-us/knowledgebase/DSM/tutorial/Storage/How_can_I_recover_data_from_my_DiskStation_using_a_PC
How does SHR work with a simple 2 bay device like the DS216se? I started with one 3TB drive in it. Which filled up, so I just added another 3TB drive thinking I'd end up with 6TB with no redundancy (I don't need it) by telling the system I want JBOD. But when I went into Storage Manager, it appears SHR is the default config and it started expanding it. 1.5 hours later and it's still "expanding" and barely 25% done. It also says I now have 1 disk redundancy which is not what I was expecting. Do I need to turn off SHR (and if so, how?) and tell it to use JBOD (again how)? Will doing so lose whatever's on disk 1 (not a problem if yes)?
So if Im running synology raid from a 4 bay which is a 4x3tb configuration then want to expand gradually to 4x6tb drive configuration can in put in the two 3tb then the 2 6tb. Will it build then eventually I can add later the other 2 6tb?
nice video... but how to react when you get this message Dear user, Storage pool 1 (SHR) on ***server has crashed. Information of the drives in abnormal status is shown below: Drive 1 Model: WD20EFRX-68E**** Serial number: ......... Several reasons may result in storage pool crash. Please refer to this FAQ to troubleshoot the issue, or contact Synology Online Support for further assistance. Sincerely, Synology DiskStation
The truth is he’s a genuine British native speaker with a genuine clear English, but on the contrary, it’s so obvious that English is not your first language! That’s not wrong or a bad thing by any mean. What’s shameful is that, you throw such a disrespectful comment instead of thanking the man for his time, expertise and the brilliant unique efforts he’s put to bring up this comparison. For FREE! Others make you pay for a course or two, or a subscription, he’s doing it for free!!! And you’re not even a native English speaker. Your punctuation is miserable if you’ve ever heard that word! My advise to you is: Come here everyday with a pen and paper, sit calmly, and shshsh, listen, repeat and learn the true English from a British native speaker, along with all other tech. things you would learn on top of that. Be grateful or STFU and stop humiliating yourself. Seriously, how old are you?!!!
![30 ชั่วโมงคนเดียว บนรถไฟชั้น 3 โซเวียต [Around The World Ep. 2]](http://i.ytimg.com/vi/MlE9boAVqDA/mqdefault.jpg)
Incredibly Helpful - You're knowledge demands respect, and your delivery is easy to follow, charming thorough yet succinct. Thankyou and well done.
Thanks so much, I have been vacillating back and forth between Raid 10 and SHR1 and now I will do SHR1 on my Syn. 920+ and use the usb copy for backups.
Finaly a good explaination of RAID. I already understood SHR, but not the blueprintstory. Thank you!
This didn't discuss what is required to recover data from a borked SHR system. When my Drobo (with their proprietary system) NAS wouldn't come back up after a sudden power outage, I found out how expensive it was to recover data from (or just repair) proprietary systems like theirs. The data was all there, but the organization was scrambled enough that it required specialist recovery. I'm not clear if Synology SHR has the same problem, and this video didn't address it. I've learned from this experience to use a UPS with a NAS and the associated on-site backup system. But the next time I set up a NAS, I'm considering RAID 5, 6 or 10 instead of a proprietary system because of the potential of free/open-source recovery options rather than expensive specialist recovery being the only possibility.
I had the same question coming here, found out synolgy described it faster and better; www.synology.com/en-global/knowledgebase/DSM/tutorial/Storage/How_can_I_recover_data_from_my_DiskStation_using_a_PC
TLDR its mdadm raids in one lvm2 volume.
So basically Synology is useless?
was always wondering about SHR technology. well explained, thank you very much!
I just got my new drive, completely clueless! this helps me big time. thank you
thank you so much for this guide, been searching all over to find exactly this :)
I've played with raid long ago and forgot but never was told clearly the way you explained it. With your explanation, now I know clearer what my Synology product does. Thanks!
Thank you, even watching this in 2021 still useful to me.
This was exactly the info I needed. Thank you for the post. Well done.
Thanks for the video. Well done, simply and precisely explained.
I like this channel...Keep up the good work!
I love your wallpaper
In theory SHR is good but is anyone tested failure management ?
I was going to choose RADE 6 as I would only use the same drive size but you mentioned with SHR you can move from one Synology to another. Does that mean if the NAS dies or I upgrade to a newer one SHR 2 would be easier and less painful than if I choose RADE 6. Cheers
I used SHR because it's what was recommended and I do whatever process the official people recommend because I'm good with computers but I'm not good enough to trust myself with sensitive data.
Love it. Great expleanation.
Hi I love your channel, great info! I have a question I hope you can help me with. I had a DS411 en bought a new DS920+. I transferred two HDD's from the old to the new (SHR) and it works great. I want to use virtual machine but my structure is EXT4 and it requires BTRFS. Now my plan: I want to eject disk 2 so the systems says there is a damaged disk while booting up. Then I want to erase disk 2 and make a new volume with BTRFS. Then I want to copy al the data from disk 1 to disk 2. Then I want to erase disk 1 and make a SHR pool with disk 2. Do you think this is a good plan? Or do you think I can't copy the data, because I don't know for sure with SHR if it's an exact clone or something like a blueprint. Thank you in advance for your help!
No Raid 1 is not 2 drives cloning each other it means one drive is cloned to all other drives. It depends on how save you want to be. You can also clone this first drive to 3 others in a four bay nas.
I'm pgrading from a DS218play to a DS920+. I have 2 8TB 5400RPM WD Red drives that are running out of room. Can I add a single 12TB 7200RPM WD Red drive or do I need to stick with 5400RPM?
Thanks!
Thanks for the support buddy. Appreciate that you took the time to donate and support content creators. As revenue is getting smaller and regardless of the amount, it's always hugely motivating when someone supports my work. Thank you for being awesome!
Say u have 4,6,8 and,8TB. With SHR, what total size u get?
4 + 4 + 4 + 4 => 12
0 + 2 + 2 + 2 => 4
0 + 0 + 2 + 2 => 2
So I have 12 + 4 + 2 = 18TB? Am I understanding SHR correctly?
I actually have 3.6, 9.1, 10.9 and 10.9TB and now I see 18.2TB. Why not 23.6TB?
Thank you, good info!
I'm missing something. When larger drives are added all the parties are installed on the largest drive or is it like normal?
Question, if you use SHR RAID 1, can that drive be read on any computer or only through a synology NAS box?
SHR is only accessible through a Synology NAS, if you want the drives accessible in an external unit choose BASIC.
@@rickb9434 based on this, it should be readable: www.synology.com/en-us/knowledgebase/DSM/tutorial/Storage/How_can_I_recover_data_from_my_DiskStation_using_a_PC
Why don't people talk about RAID 10? I was told that was better than a RAID 5/6 setup?
How does SHR work with a simple 2 bay device like the DS216se? I started with one 3TB drive in it. Which filled up, so I just added another 3TB drive thinking I'd end up with 6TB with no redundancy (I don't need it) by telling the system I want JBOD. But when I went into Storage Manager, it appears SHR is the default config and it started expanding it. 1.5 hours later and it's still "expanding" and barely 25% done. It also says I now have 1 disk redundancy which is not what I was expecting. Do I need to turn off SHR (and if so, how?) and tell it to use JBOD (again how)? Will doing so lose whatever's on disk 1 (not a problem if yes)?
So if Im running synology raid from a 4 bay which is a 4x3tb configuration then want to expand gradually to 4x6tb drive configuration can in put in the two 3tb then the 2 6tb. Will it build then eventually I can add later the other 2 6tb?
nice video... but how to react when you get this message
Dear user,
Storage pool 1 (SHR) on ***server has crashed.
Information of the drives in abnormal status is shown below:
Drive 1
Model: WD20EFRX-68E****
Serial number: .........
Several reasons may result in storage pool crash. Please refer to this FAQ to troubleshoot the issue, or contact Synology Online Support for further assistance.
Sincerely,
Synology DiskStation
😻
srividyabushanaswami
can you do it in english, or at least put subtitles ??
The truth is he’s a genuine British native speaker with a genuine clear English, but on the contrary, it’s so obvious that English is not your first language! That’s not wrong or a bad thing by any mean. What’s shameful is that, you throw such a disrespectful comment instead of thanking the man for his time, expertise and the brilliant unique efforts he’s put to bring up this comparison. For FREE!
Others make you pay for a course or two, or a subscription, he’s doing it for free!!!
And you’re not even a native English speaker. Your punctuation is miserable if you’ve ever heard that word!
My advise to you is: Come here everyday with a pen and paper, sit calmly, and shshsh, listen, repeat and learn the true English from a British native speaker, along with all other tech. things you would learn on top of that.
Be grateful or STFU and stop humiliating yourself. Seriously, how old are you?!!!
srividyabushanaswami