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Message-Id: <201211021903.qA2J3CoU099663@red.freebsd.org>
Date: Fri, 2 Nov 2012 19:03:12 GMT
From: Dmitry Afanasiev <KOT@MATPOCKuH.Ru>
To: freebsd-gnats-submit@FreeBSD.org
Subject: Splitted pool is not expandable
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>Number:         173298
>Category:       bin
>Synopsis:       zpool(8): Splitted pool is not expandable
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Nov 02 19:10:00 UTC 2012
>Closed-Date:    
>Last-Modified:  Wed Jul 03 03:20:46 UTC 2013
>Originator:     Dmitry Afanasiev
>Release:        FreeBSD 9.0-STABLE
>Organization:
>Environment:
FreeBSD green 9.0-STABLE FreeBSD 9.0-STABLE #87: Wed Jun 20 11:20:29 MSK 2012     root@green:/usr/obj/usr/src/sys/green  amd64

>Description:
No way to expand pool after zpool split
>How-To-Repeat:
# dd if=/dev/zero of=/var/tmp/tank bs=1024k count=64
# dd if=/dev/zero of=/var/tmp/tank2 bs=1024k count=128
# zpool create tank /var/tmp/tank
# zpool list tank
NAME   SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
tank  59.5M  89.5K  59.4M     0%  1.00x  ONLINE  -
# zpool attach tank /var/tmp/tank /var/tmp/tank2
Wait for resilvering to be complete
# zpool split -o autoexpand=on tank tank2 /var/tmp/tank2
# zpool import -d /var/tmp tank2
# zpool list tank2              
NAME    SIZE  ALLOC   FREE    CAP  HEALTH  ALTROOT
tank2  59,5M   196K  59,3M     0%  ONLINE  -

We have no way to expand pool tank2

Attach new device, set autoexpand property and then detach old device works properly:
# zpool attach tank /var/tmp/tank /var/tmp/tank2
# zpool set autoexpand=on tank
# zpool detach tank /var/tmp/tank
# zpool list tank
NAME   SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
tank   124M   133K   123M     0%  1.00x  ONLINE  -


>Fix:


>Release-Note:
>Audit-Trail:

From: Adam McDougall <mcdouga9@egr.msu.edu>
To: bug-followup@FreeBSD.org, KOT@MATPOCKuH.Ru
Cc:  
Subject: Re: bin/173298: Splitted pool is not expandable
Date: Fri, 02 Nov 2012 17:13:14 -0400

 I have no comment about autoexpand, but zpool online -e will do it:
 
 % zpool list
 NAME    SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
 tank   59.5M   169K  59.3M     0%  1.00x  ONLINE  -
 tank2  59.5M   172K  59.3M     0%  1.00x  ONLINE  -
 % zpool online -e tank2 /var/tmp/tank2
 % zpool list
 NAME    SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
 data    448G   266G   182G    59%  1.24x  ONLINE  -
 rpool   206G   168G  37.8G    81%  1.02x  ONLINE  -
 tank   59.5M   102K  59.4M     0%  1.00x  ONLINE  -
 tank2   124M   157K   123M     0%  1.00x  ONLINE  -

From: Andriy Gapon <avg@FreeBSD.org>
To: bug-followup@FreeBSD.org, KOT@MATPOCKuH.Ru
Cc:  
Subject: Re: bin/173298: Splitted pool is not expandable
Date: Fri, 02 Nov 2012 23:33:12 +0200

 > We have no way to expand pool tank2
 
 Have you tried zpool online -e ... ... ?
 
 -- 
 Andriy Gapon

From: Dmitry Afanasiev <KOT@MATPOCKuH.Ru>
To: Andriy Gapon <avg@FreeBSD.org>
Cc: bug-followup@FreeBSD.org
Subject: Re: bin/173298: Splitted pool is not expandable
Date: Mon, 12 Nov 2012 12:04:46 +0400

 On 03.11.2012 01:33, Andriy Gapon wrote:
 >> We have no way to expand pool tank2
 > Have you tried zpool online -e ... ... ?
 Omg. I'm confused, solaris's zpool command does not have '-e' switch.
 Yes, zpool online -e expands pool, but...
 Why autoexpand property for spitted pool have no effect?
 
>Unformatted:
