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I have read the manual on how to do this, however there is a key detail left out... do I hot swap the drive? or do I shut down the unit, change the drive, then turn it back on?

Thanks!
I have read the manual on how to do this, however there is a key detail left out... do I hot swap the drive? or do I shut down the unit, change the drive, then turn it back on?

Thanks!
Hi Ceraq,

You can hot swap the HDD.

Before you swap your HDD, please check all HDD in your NAS.
If there still other HDD show [Reallocated Sectors Count] or [Current Pending Sector Count] error, please backup your data before your rebuild your RAID.
Cause if another HDD error and leave raid when you rebuilding raid, it means 2 HDD left RAID1, and might make RAID damage.

About the HDD Smart info:
<!-- m --><a class="postlink" href="http://esupport.thecus.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=50">http://esupport.thecus.com/support/inde ... ticleid=50</a><!-- m -->

Please refer to [How to rebuild a degraded RAID?]
<!-- m --><a class="postlink" href="http://esupport.thecus.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=28">http://esupport.thecus.com/support/inde ... ticleid=28</a><!-- m -->
Hi Ceraq,

You can hot swap the HDD.

Before you swap your HDD, please check all HDD in your NAS.
If there still other HDD show [Reallocated Sectors Count] or [Current Pending Sector Count] error, please backup your data before your rebuild your RAID.
Cause if another HDD error and leave raid when you rebuilding raid, it means 2 HDD left RAID1, and might make RAID damage.

About the HDD Smart info:
<!-- m --><a class="postlink" href="http://esupport.thecus.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=50">http://esupport.thecus.com/support/inde ... ticleid=50</a><!-- m -->

Please refer to [How to rebuild a degraded RAID?]
<!-- m --><a class="postlink" href="http://esupport.thecus.com/support/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=28">http://esupport.thecus.com/support/inde ... ticleid=28</a><!-- m -->
Thanks Bertha. My new disks should arrive today or tomorrow and I'll re-build it then. I'll have to see if I have enough free space around to back it up... Thanks again.
Hi Bertha,

Bad bad news... When I went to look at the system it no longer recognizes that there is a RAID 1 setup! Here are the 3 logs in no particular order:

Code:
315: 2013/03/13 17:03:10 RHOD-N4100PRO : Hard Disk 3 on RHOD-N4100PRO has an I/O error.
681: 2013/03/13 17:09:22 RHOD-N4100PRO : NTP server connected fail.
2013/03/13 17:02:53 RHOD-N4100PRO : [Disk sdc] UUID[raid1;7279dc67:1e9f843c:1fb8ea51:a64a7d6b;Fri Dec 12 13:03:08 2008]
2013/03/13 17:02:53 RHOD-N4100PRO : [Disk sda] UUID[raid1;7279dc67:1e9f843c:1fb8ea51:a64a7d6b;Fri Dec 12 13:03:08 2008]
2013/03/13 17:03:07 RHOD-N4100PRO : RHOD-N4100PRO boot
2013/03/13 18:07:59 RHOD-N4100PRO : User admin logged in from 192.168.1.204
2013/03/13 17:03:02 RHOD-N4100PRO : Assemble RAID warning, try to force assemble RAID

It looks to me like the raid is recognized, btu there is certainly a disk failure. My NAS is set to turn off at 2 am every night and then re-start at 5 pm. I suppose the logs get wiped with that Sad
Hi Bertha,

Bad bad news... When I went to look at the system it no longer recognizes that there is a RAID 1 setup! Here are the 3 logs in no particular order:

Code:
315: 2013/03/13 17:03:10 RHOD-N4100PRO : Hard Disk 3 on RHOD-N4100PRO has an I/O error.
681: 2013/03/13 17:09:22 RHOD-N4100PRO : NTP server connected fail.
2013/03/13 17:02:53 RHOD-N4100PRO : [Disk sdc] UUID[raid1;7279dc67:1e9f843c:1fb8ea51:a64a7d6b;Fri Dec 12 13:03:08 2008]
2013/03/13 17:02:53 RHOD-N4100PRO : [Disk sda] UUID[raid1;7279dc67:1e9f843c:1fb8ea51:a64a7d6b;Fri Dec 12 13:03:08 2008]
2013/03/13 17:03:07 RHOD-N4100PRO : RHOD-N4100PRO boot
2013/03/13 18:07:59 RHOD-N4100PRO : User admin logged in from 192.168.1.204
2013/03/13 17:03:02 RHOD-N4100PRO : Assemble RAID warning, try to force assemble RAID

It looks to me like the raid is recognized, btu there is certainly a disk failure. My NAS is set to turn off at 2 am every night and then re-start at 5 pm. I suppose the logs get wiped with that Sad
Ceraq Wrote:Hi Bertha,

Bad bad news... When I went to look at the system it no longer recognizes that there is a RAID 1 setup! Here are the 3 logs in no particular order:

It looks to me like the raid is recognized, btu there is certainly a disk failure. My NAS is set to turn off at 2 am every night and then re-start at 5 pm. I suppose the logs get wiped with that Sad

Hi Ceraq,

For the RAID issue, please submit the "conf.bin" to Thecus support team at: <!-- m --><a class="postlink" href="http://esupport.thecus.com/support/index.php">http://esupport.thecus.com/support/index.php</a><!-- m -->
"conf.bin" can be downloaded from system UI: [System Management] --> [Config Mgmt] and then press [Download] button.
Thank you for posting this information!)
Thank you for posting this information!)