Re: [MooseFS-Users] Disk has "damaged" status, but SMART test result passed?

[David M. <dav...@pr...>]

Hi Piotr,

Thank you for the prompt response - here are some details on the disk:

Via $ smartctl -a /dev/sdb1:

Raw_Read_Error_Rate: 0
Throughput_Performance: 150
Spin_Up_Time: 591 (Average 665)
Start_Stop_Count: 40
Reallocated_Sector_Ct: 0
Seek_Error_Rate: 0
Seek_Time_Performance: 33
Power_On_Hours: 32285
Spin_Retry_Count: 0
Power_Cycle_Count: 40
Power-Off_Retract_Count: 695
Load_Cycle_Count: 695
Temperature_Celsius: 38 (Min/Max 21/46)
Reallocated_Event_Count: 0
Current_Pending_Sector: 0
Offline_Uncorrectable: 0
UDMA_CRC_Error_Count: 0

Via $ cat /proc/mounts:
/dev/sdb1 /disk3 ext4 rw,seclabel,relatime,data=ordered 0 0

Would you recommend reformatting as xfs rather than ext4?

Thanks,
Dave

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Monday, February 18, 2019 4:55 PM, Piotr Robert Konopelko <pio...@ge...> wrote:

> Hi Dave,
> Thank you for your e-mail.
>
> Are there any "reallocated sectors" of this HDD? If no, it should be fine to reformat it (just in case) and add to Chunkserver configuration then (as empty). If the issue will persist (i.e. MooseFS will mark it as damaged soon again), you should look for H/W issue (HDD itself / controller / SATA cable etc.).
>
> What file system are you using? Does it have compression enabled? If compression is enabled, MooseFS may incorrectly consider such a disk as damaged, as number of blocks can change on compressed file systems. Then for such a compressed underlying filesystem you should consider using "~" before path to mounted partition (see more in man mfshdd.cfg and comments directly in this file).
>
> Hope it helps.
>
> Best regards,
> Piotr
>
> Piotr Robert Konopelko | m: +48 601 476 440 | e: pio...@mo...
> Business & Technical Support Manager
> MooseFS Client Support Team
>
> [WWW](http://moosefs.com/) | [GitHub](https://github.com/moosefs/moosefs) | [Twitter](https://twitter.com/moosefs) | [Facebook](https://www.facebook.com/moosefs) | [LinkedIn](https://www.linkedin.com/company/moosefs)
>
>> On 19 Feb 2019, at 1:22 AM, David Myer via moosefs-users <moo...@li...> wrote:
>>
>> Dear MooseFS Users,
>>
>> I had a 1TB disk in my cluster that had the "damaged" status. I followed the removal steps and took it out of the cluster. I then performed a SMART long test which passed.
>>
>> Should I continue with replacement of the disk, or should I just reformat it and re-add it to the cluster? If there's nothing wrong with the disk I would rather avoid the time and potential risks of hot swapping it from a live chunkserver.
>>
>> Any advice would be appreciated.
>>
>> Thanks,
>> Dave