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Bug #16429

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zpool hot spare replacement not grabbing similar/appropriate sized drive

Added by Lee Damon 25 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
zfs - Zettabyte File System
Start date:
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
External Bug:

Description

We have a file server with two different sizes of drives in VDEVs in the same pool. Two VDEVs have 12TB drives and one has 18TB drives. We have one hot spare of each size assigned to the pool.

Lately we've noticed that when a 12TB drive fails and the pool resilvers it grabs the 18TB hotspare even though there is a 12TB hot spare right there. This means we have to re-do the resilver every time to keep our 18TB hot spare available should one of those drives fail.

It seems to me that it would be a much better practice to replace like with like, or failing that, the closest that would work as a replacement.

thanks,
nomad

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