EF & E-Series, SANtricity, and Related Plug-ins

e5760 -failure ppd pool and volumes

Dmirti_Mayorov
357 Views

Hi

In e5760 (120 hdd - 2 dpp pool -11 volumes
we do not understand  the reason  -at this moment all - ddp pool and volumes failed

in HW -only 1 hdd failed

Is it possible to recover data in this case? 

 

DISK POOLS------------------------------

SUMMARY

Total Disk Pools: 2
Total Capacity: 1,293.070 TB Usable, 1,276.445 TB Used
Total Free Capacity: 16.625 TB
Status: 0 Optimal, 2 Non Optimal

Name Status Usable Capacity Used Capacity Free Capacity Preservation Capacity Drive/Media Type Volumes DA Capable
vidanl_ddp1 Failed 646.535 TB 630.000 TB (97%) 16.535 TB 42.748 TB(3 Drives) SAS, Hard Disk Drive 6 Yes
vidanl_ddp2 Failed 646.535 TB 646.445 TB (100%) 92.000 GB 42.748 TB(3 Drives) SAS, Hard Disk Drive 5 Yes

 

SUMMARY

Number of volumes: 11


Name Thin Provisioned SSD Cache Status Capacity Accessible by Source
ddp1-vid3301_0 No No Failed 10.000 TB Host srv-vid3301 Disk Pool vidanl_ddp1
ddp1-vid3302 No No Failed 200.000 TB Host srv-vid3302 Disk Pool vidanl_ddp1
ddp1-vid3302_1 No No Failed 140.000 TB Host srv-vid3302 Disk Pool vidanl_ddp1
ddp1-vid3302_2 No No Failed 40.000 TB Host srv-vid3302 Disk Pool vidanl_ddp1
ddp1-vid3303 No No Failed 200.000 TB Host srv-vid3303 Disk Pool vidanl_ddp1
ddp1-vid3303_2 No No Failed 40.000 TB Host srv-vid3303 Disk Pool vidanl_ddp1
ddp1-vid3304 No No Failed 6,600.000 GB Host srv-vid3304 Disk Pool vidanl_ddp2
ddp2-anl3303 No No Failed 100.000 TB Host srv-anl3303 Disk Pool vidanl_ddp2
ddp2-vid3302 No No Failed 200.000 TB Host srv-vid3302 Disk Pool vidanl_ddp2
ddp2-vid3303 No No Failed 200.000 TB Host srv-vid3303 Disk Pool vidanl_ddp2
ddp2-vid3303_1 No No Failed 140.000 TB Host srv-vid3303 Disk Pool vidanl_ddp2

4 REPLIES 4

elementx
312 Views

DDP can tolerate 2 or 3 disks failures depending on config, assuming you have reserve capacity to "restripe" in case of a failure.

 

I don't often look at CLI output but are these DDPs full (97%, 100%)?

 

> vidanl_ddp1 Failed 646.535 TB 630.000 TB (97%) 16.535 TB 42.748 TB(3 Drives) SAS, Hard Disk Drive 6 Yes
> vidanl_ddp2 Failed 646.535 TB 646.445 TB (100%) 92.000 GB 42.748 TB(3 Drives) SAS, Hard Disk Drive 5 Yes

 

I wouldn't reboot controllers or touch anything - get Support to call you and let them figure it out for yu!

Dmirti_Mayorov
302 Views

Yes -  DDPs full (97%, 100%) - but user used only thick volumes and no used snapshot

I don't think it's the biggest problem right now.

 

Unfortunately the system does not have an active contract  - may be you have any idea how to recover pool?

 

elementx
298 Views

Well, not all forum members have access to Support KBs, so suggestions may not be based on facts...

If you follow recommendations from the forums you can make things worse - that's why I suggested it's best to not touch anything if you can't know for sure that it will help.

 

I  found a similar case here, no resolution, but a response said it can be quite complicated to recover:

https://community.netapp.com/t5/EF-E-Series-SANtricity-and-Related-Plug-ins/DDP-FAILED/m-p/145875

 

You could try random things such as rolling controller restart, but I don't now if that would help or make things worse.

 

Dmirti_Mayorov
297 Views

Yes - i read this case - but - it's have not solution(

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