NETWORK ATTACHED STORAGE (NAS) V2
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 Aug 11 2021, 08:08 PM
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#1501
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Elite
4,420 posts Joined: Jan 2003 
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QUOTE(mitkey06 @ Aug 11 2021, 05:53 PM) exactly. so shud i just deactivate it first before plug into the other NAS ? Its taking upto 24 hours to repair (from 4TB to 8TB). i still have another 4TB hdd to go. guess i need to deactivate first ? can I deactivate and format the NAS HDD before unplug ? iI would suggest to allow the repair to settle first before doing anything. What's your rush? in my experience, the NAS still usable during the repair process WaNaWe900 liked this post
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Aug 11 2021, 10:10 PM
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Junior Member
95 posts Joined: Dec 2016
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[4TB 3TB 3TB 3TB]
from above configuration my drive 4 is degraded and I want to replace drive 4 with 4TB. however, I understand its better to put the 2 units of 4TB side by side, right ? and how do I do it ? |
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Aug 12 2021, 01:17 AM
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Senior Member
1,397 posts Joined: Feb 2012 From: sOuL SoCiETY.. iSKaNDaRPuTeRi.. JB.. JDT  
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QUOTE(mitkey06 @ Aug 11 2021, 05:53 PM) exactly. so shud i just deactivate it first before plug into the other NAS ? Its taking upto 24 hours to repair (from 4TB to 8TB). i still have another 4TB hdd to go. guess i need to deactivate first ? can I deactivate and format the NAS HDD before unplug ? NAS 1[4TB 4TB 8TB 8TB) - Take out 4TB x2 * if this the disk you want to insert in NAS 2 it should be remove properly from NAS 1 * Deactivate, later better format as new drive before insert in NAS 2 - Plug new 8TB x2 (wait to rebuild) NAS 2 [3TB 3TB 3TB 3TB) - Remove Disk 1 & 4 (failing) "Replace disk" - Insert 4TB x2 from NAS 1 (format as new disk) into Disk 1 & 4 - Wait rebuild  |
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Aug 12 2021, 07:21 AM
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Senior Member
5,258 posts Joined: Oct 2004 From: J@Y B33
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QUOTE(mitkey06 @ Aug 11 2021, 10:10 PM) [4TB 3TB 3TB 3TB] No need put same size side by side.from above configuration my drive 4 is degraded and I want to replace drive 4 with 4TB. however, I understand its better to put the 2 units of 4TB side by side, right ? and how do I do it ? |
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Aug 12 2021, 07:24 AM
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Senior Member
5,258 posts Joined: Oct 2004 From: J@Y B33
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QUOTE(WaNaWe900 @ Aug 12 2021, 01:17 AM) NAS 1 If the 2 disk need to take out is in same pool, replace 1 only first and wait finish rebuild before replace second one.[4TB 4TB 8TB 8TB) - Take out 4TB x2 * if this the disk you want to insert in NAS 2 it should be remove properly from NAS 1 * Deactivate, later better format as new drive before insert in NAS 2 - Plug new 8TB x2 (wait to rebuild) NAS 2 [3TB 3TB 3TB 3TB) - Remove Disk 1 & 4 (failing) "Replace disk" - Insert 4TB x2 from NAS 1 (format as new disk) into Disk 1 & 4 - Wait rebuild WaNaWe900 liked this post
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Aug 12 2021, 10:04 AM
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All Stars
17,014 posts Joined: Jan 2005
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QUOTE(mitkey06 @ Aug 11 2021, 05:53 PM) exactly. so shud i just deactivate it first before plug into the other NAS ? Its taking upto 24 hours to repair (from 4TB to 8TB). i still have another 4TB hdd to go. guess i need to deactivate first ? can I deactivate and format the NAS HDD before unplug ? I have never format the old HDD before insert into the NAS.This is my current setup. [V1-16tb, 16tb, 16tb, 6tb] [V2-2tb, 2tb, 2tb, 2tb] To change the drive, switch the NAS off, swap out the drive and insert the new. ON it, Log in and follow the drive rebuilt. Let it finish rebuilt + the checking. Check the file makesure no corrupt. Than start to swap another drive. I did use the old drive to replace on the 2tb. Never format it. WaNaWe900 liked this post
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Aug 12 2021, 01:56 PM
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Junior Member
326 posts Joined: Jun 2008
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actually as long as your drive has no partitions setup for synology before you can use the drive and storage manager will be able to handle them. if they were from another volume or pool or different synology, it will be picked up, that is how they handle migrations all volume information is stored in the drive when synology preps it for volume building. if they were used before a simple diskpart and clean volume will kill it and is ready for consumption in your nas
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Aug 14 2021, 12:31 AM
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Junior Member
95 posts Joined: Dec 2016
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can I know what is the recommended backup of windows OS/system volume inc application (office and other software that comes with license keys). do we use microsoft system back up or synology active backup for business ?
e.g. if one of the client SSD burnt, then it wud be nightmare right ? |
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Aug 14 2021, 05:11 PM
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Junior Member
95 posts Joined: Dec 2016
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I detected bad sector on ironwolf drive which is under warranty, can i send for RMA ?
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Aug 14 2021, 11:29 PM
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Senior Member
5,258 posts Joined: Oct 2004 From: J@Y B33
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QUOTE(mitkey06 @ Aug 14 2021, 12:31 AM) can I know what is the recommended backup of windows OS/system volume inc application (office and other software that comes with license keys). do we use microsoft system back up or synology active backup for business ? Try both see which one suitable for you.e.g. if one of the client SSD burnt, then it wud be nightmare right ? Having OS/system backup is not good enough, more importantly is will it restore back correctly without issue? If you got device can use for test, try to backup and wipe the OS, then restore. QUOTE(mitkey06 @ Aug 14 2021, 05:11 PM) I detected bad sector on ironwolf drive which is under warranty, can i send for RMA ? Check with Seagate if can send RMA. WaNaWe900 liked this post
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Aug 16 2021, 03:31 PM
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Junior Member
326 posts Joined: Jun 2008
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QUOTE(mitkey06 @ Aug 14 2021, 05:11 PM) I detected bad sector on ironwolf drive which is under warranty, can i send for RMA ? if you have only a few bad sectors and does not increase over time I suggest you keep it. RMA DOES NOT guarantees you a good drive, most of the time they are not new drives rather repaired or refurbished ones. Synology already allocated 10% of your drive in case bad sectors occurred so that can be mapped as bad and not to write on it. Bad sectors will tend to happen over time but as long it does increase in an alarming rate your drive should be fine. |
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Aug 18 2021, 11:37 AM
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Junior Member
95 posts Joined: Dec 2016
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After all the Hoohaa, I rerun the SMART test on the HDD that reported bad sector and crash my pool. guess what, it says healthy. so I dont believe, rerun SMART overnight, still report healthy. the HDD is a WD 7years. how do I really check ? this HDD just screw up my entire NAS.
I run WINDOWS chkdsk /F also. surface scan. all ok. isnt that when there is bad sector, it will be reported ? This post has been edited by mitkey06: Aug 18 2021, 11:38 AM |
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Aug 18 2021, 05:41 PM
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Senior Member
5,258 posts Joined: Oct 2004 From: J@Y B33
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QUOTE(mitkey06 @ Aug 18 2021, 11:37 AM) After all the Hoohaa, I rerun the SMART test on the HDD that reported bad sector and crash my pool. guess what, it says healthy. so I dont believe, rerun SMART overnight, still report healthy. the HDD is a WD 7years. how do I really check ? this HDD just screw up my entire NAS. Try use CrystalDiskInfo to see if the HDD is healthy and see if got any of theseI run WINDOWS chkdsk /F also. surface scan. all ok. isnt that when there is bad sector, it will be reported ? QUOTE Reallocated sector counts. Reallocation happens when the drive's logic remaps a damaged sector, as a result of recurring soft or hard errors, to a new physical sector from its spare ones. This attribute reflects the number of times a remapping has happened. If its value increases, it's an indication of HDD or SSD wear. Current Pending Sector Count. This counts the "unstable" sectors, meaning the damaged ones with read errors that are waiting for a remapping, a kind of "probation" system. S.M.A.R.T. algorithms have mixed understandings about this particular attribute, as it is sometimes unconvincing. Still, it can provide an earlier warning of possible problems. Reported Uncorrectable Errors. It is the count of errors that are impossible to recover, and it is useful because it seems to have the same meaning for all manufacturers. https://www.digitalcitizen.life/simple-ques...hat-does-it-do/ WaNaWe900 liked this post
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Aug 19 2021, 10:00 AM
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All Stars
17,014 posts Joined: Jan 2005
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QUOTE(mitkey06 @ Aug 18 2021, 11:37 AM) After all the Hoohaa, I rerun the SMART test on the HDD that reported bad sector and crash my pool. guess what, it says healthy. so I dont believe, rerun SMART overnight, still report healthy. the HDD is a WD 7years. how do I really check ? this HDD just screw up my entire NAS. Here my same case scenario just happen.I run WINDOWS chkdsk /F also. surface scan. all ok. isnt that when there is bad sector, it will be reported ? Monday suddenly pop up alarm Hdd4 have an I/O error. Might be bad sector.  Log in and check.. But said healthy.  So I run an extensive SMART test. But the result comeback is no problem and no bad sector.  After monitor few day, nothing happen. Anyway decide to change it as I know this WD HDD is almost end of lifespan. It is the last 4 WD HDD to wait for change. OFF the power, take out the old and replace the new.   ON back and wait for the alarm out. Beep and orange light on Alert.  Log in and check the new HDD is confirm inside.  Go to storage pool, show info below.  This post has been edited by ozak: Aug 19 2021, 10:45 AM |
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Aug 19 2021, 10:03 AM
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All Stars
17,014 posts Joined: Jan 2005
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Than choose Action and Repair.    Wait for it to repair. It might take hr to few day. Depend the HDD size.  This post has been edited by ozak: Aug 19 2021, 10:46 AM WaNaWe900 liked this post
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Aug 19 2021, 10:23 AM
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Junior Member
95 posts Joined: Dec 2016
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I will never go back to WD. not sure who owns it now. never thot its so expensive to own storage pool. every 8 years change. question now, can we trust synology SMART hdd check ?
This post has been edited by mitkey06: Aug 19 2021, 10:29 AM |
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Aug 19 2021, 10:53 AM
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All Stars
17,014 posts Joined: Jan 2005
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QUOTE(mitkey06 @ Aug 19 2021, 10:23 AM) I will never go back to WD. not sure who owns it now. never thot its so expensive to own storage pool. every 8 years change. question now, can we trust synology SMART hdd check ? It is not the smart test problem. The HDD do have bad sector and increasing. But manageable and between the drive limit percentage. If the bad sector getting more it will alert time to replace. The average HDD lifespan is 5yrs. My 3 WD HDD die between 5yrs. and this wan last yrs 7. The longest can last and still running is Samsung HDD for 11yrs. Left 3 and die 1. Having NAS is not cheap. With the choice of cloud now, think twice before get 1. |
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Aug 19 2021, 05:11 PM
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Junior Member
95 posts Joined: Dec 2016
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why my system do not start with storage pool 1 since my last crash ? after the crash, i delete all the pools and restart creating new storage pool. yet it always remain pool 2.
This post has been edited by mitkey06: Aug 20 2021, 12:08 PM |
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Aug 30 2021, 09:33 AM
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Junior Member
95 posts Joined: Dec 2016
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QUOTE(xxboxx @ Aug 18 2021, 05:41 PM) Try use CrystalDiskInfo to see if the HDD is healthy and see if got any of these yes crystaldiskinfo is good. it shows my nas hdd health info with CAUTION. there are more than 200 remap bad sectors and growing. time to discard the hdd ? |
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Aug 30 2021, 12:40 PM
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Senior Member
5,258 posts Joined: Oct 2004 From: J@Y B33
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QUOTE(mitkey06 @ Aug 30 2021, 09:33 AM) yes crystaldiskinfo is good. it shows my nas hdd health info with CAUTION. there are more than 200 remap bad sectors and growing. time to discard the hdd ? Ya, the HDD going to die. |
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