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Forum Discussion
Readynas Duo & Swapping out Disk 1
Hi
I have an old Readynas Duo V1 (2 bay) with 2 2TB drives in them. For some time I have noticed the errors creeping up on Disk 1 and ATA errors occuring. When I power down and power up sometimes the NAS when powering up just sits with the blue light flashing and I can't access it at all. I turn off and leave for 1/2 hour then reboot and it seems to be ok. I assume this to be a problem with Disk 1. I have had some issues reading and writing to this disk on occasion and as explained above there are errors on the Health checks. For the drive I thought I would just replace it with a new model Barracuda 2TB model ST2000DM001 which is compatible - question is can I just take Disk 1 out and replace it with this new disk as a hot swap? I believe the normal process is replacing Disk 2 first allowing it to be Redundant then swapping out Disk 1 however Disk 2 is ok. No errors at all.
If I do swap out Disk 1 will everything be ok? Just would like to know if there is anything I need to before hand as pre-steps.
Also, I have some some posts about power failures - would the above blue flashing issue be a power problem instead of a disk problem? If power problem can anyone recommend a new power board for my Readynas Duo v1?
Many thanks!
Pjcools
I have an old Readynas Duo V1 (2 bay) with 2 2TB drives in them. For some time I have noticed the errors creeping up on Disk 1 and ATA errors occuring. When I power down and power up sometimes the NAS when powering up just sits with the blue light flashing and I can't access it at all. I turn off and leave for 1/2 hour then reboot and it seems to be ok. I assume this to be a problem with Disk 1. I have had some issues reading and writing to this disk on occasion and as explained above there are errors on the Health checks. For the drive I thought I would just replace it with a new model Barracuda 2TB model ST2000DM001 which is compatible - question is can I just take Disk 1 out and replace it with this new disk as a hot swap? I believe the normal process is replacing Disk 2 first allowing it to be Redundant then swapping out Disk 1 however Disk 2 is ok. No errors at all.
If I do swap out Disk 1 will everything be ok? Just would like to know if there is anything I need to before hand as pre-steps.
Also, I have some some posts about power failures - would the above blue flashing issue be a power problem instead of a disk problem? If power problem can anyone recommend a new power board for my Readynas Duo v1?
Many thanks!
Pjcools
5 Replies
Replies have been turned off for this discussion
- You can hot-swap disk 1 with another 2 TB drive. There is no need to replace disk 2.
What errors are you seeing in the SMART+ stats? - So I can just take the disk out of slot 1 and replace with new drive. Will the contents of Disk 2 replicate over to Disk 1 for Redundancy?
Here is the SMART+ stats.
Model: ST32000542AS
Serial: 9XW0F323
Firmware: CC34
SMART Attribute
Spin Up Time 0
Start Stop Count 1288
Reallocated Sector Count 2423
Power On Hours 20374
Spin Retry Count 0
Power Cycle Count 1277
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 4
Command Timeout 0
High Fly Writes 1
Airflow Temperature Cel 42
Temperature Celsius 42
Current Pending Sector 682
Offline Uncorrectable 682
UDMA CRC Error Count 0
Head Flying Hours 228754253176284
Total LBAs Written 4012443717
Total LBAs Read 2606630131
ATA Error Count 4
Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 9
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0
The main concern is the reallocated sector count and ATA error count.
The SMART+ stats for Disk 2 are as follows. I do see that the Reallocated sector count on this is also 9 - must have just started as perviously this drive was 0.
SMART Information for Disk 2
Model: ST32000542AS
Serial: 9XW0EVFA
Firmware: CC34
SMART Attribute
Spin Up Time 0
Start Stop Count 0
Reallocated Sector Count 9
Power On Hours 20443
Spin Retry Count 0
Power Cycle Count 1278
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 0
High Fly Writes 5
Airflow Temperature Cel 40
Temperature Celsius 40
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Head Flying Hours 199329432231392
Total LBAs Written 2380022397
Total LBAs Read 975174830
ATA Error Count 0
Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 0
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0
Any help would be appreciated.
thanks!
pjcools - Do you have a backup of the data on the nas? This is really important.
The reallocated sector count on disk 1 is huge, most users would advise replacing disks when this reaches about 50.
You need to replace disk 1. There is one risk here that, as the volume rebuilds (the data will be synchronised from disk 2 to disk 1), the additional workload on disk 2 may cause it to fail. If this occurs during the rebuild you will lose all your data.
I would suggest doing a backup before you replace the disk if you can.
You need to do this now. - Your data is at risk, so I agree that a backup is important, and that you should act promptly.
- I have backed up my data - I did have some of it backed up already but good idea to back the entire NAS up to another external drive.
I will now just swap out Disk 1 and replace it and see how I go.
thanks!
pjcools
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