ONTAP Hardware

RAID rebuid time for 144GB disks with RG size 27

naing_lin
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Please let me ask a question here. There was a disk failed in the Filer and spare low. The reconstruction time was long about 7 hours and performance impact while rebuild. The option raid.recon struct.perf_impact is set to medium. There is a single Raid Group and formed as Raid_DP with 144GBx27 disks within a Raid Group size of 27.

There is one KB (Solution ID# 18300) in NetApp that mentioned about roughly rebuild time for 500GB or 1TB ATA disks is about 10hrs.

May I know how long does it take to complete the RAID reconstruction for 144GB disks with RG size 27, and why does performace was seriously impact?

Please kindly help me an answer and your help is really appreciated.

Thanks and Regards,

Naing

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