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Date: Sat, 14 Jul 2012 22:21:29 GMT
From: "Vladislav V. Prodan" <universite@ukr.net>
To: freebsd-gnats-submit@FreeBSD.org
Subject: zpool iostat shows 0 activity, although the pool is transferred the data
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>Number:         169865
>Category:       bin
>Synopsis:       zpool(8): zpool iostat shows 0 activity, although the pool is transferred the data
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jul 14 22:30:12 UTC 2012
>Closed-Date:    
>Last-Modified:  Sun Jul 15 00:46:40 UTC 2012
>Originator:     Vladislav V. Prodan
>Release:        9.0
>Organization:
support.od.ua
>Environment:
FreeBSD mary-teresa.XXX 9.0-STABLE FreeBSD 9.0-STABLE #0: Tue Jul 10 14:42:34 EEST 2012     root@mary-teresa.XXX:/usr/obj/usr/src/sys/XXX.20  amd64

>Description:

zpool iostat shows 0 activity, although the pool is transferred the data

zfs v5, zpool v28

[1:13]mary-teresa:root->/root# zpool iostat tank2 4
               capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
tank2       41,7G  2,68T      0      0      0     66
tank2       42,2G  2,68T      0      0      0      0
tank2       42,5G  2,68T      0      0      0      0
tank2       43,0G  2,68T      0      0      0      0
tank2       43,5G  2,68T      0      0      0      0
tank2       43,9G  2,68T      0      0      0      0
tank2       44,3G  2,68T      0      0      0      0
tank2       44,8G  2,67T      0      0      0      0
tank2       45,3G  2,67T      0      0      0      0
tank2       45,7G  2,67T      0      0      0      0
tank2       46,1G  2,67T      0      0      0      0
tank2       46,5G  2,67T      0      0      0      0
tank2       47,0G  2,67T      0      0      0      0
tank2       47,5G  2,67T      0      0      0      0
tank2       47,8G  2,67T      0      0      0      0
tank2       48,2G  2,67T      0      0      0      0
tank2       48,6G  2,67T      0      0      0      0
tank2       49,0G  2,67T      0      0      0      0
tank2       49,3G  2,67T      0      0      0      0
tank2       49,8G  2,67T      0      0      0      0
tank2       50,3G  2,67T      0      0      0      0
tank2       50,8G  2,67T      0      0      0      0
tank2       51,1G  2,67T      0      0      0      0
tank2       51,5G  2,67T      0      0      0      0
tank2       52,0G  2,67T      0      0      0      0
tank2       52,4G  2,67T      0      0      0      0
tank2       52,8G  2,67T      0      0      0      0
tank2       53,3G  2,67T      0      0      0      0
tank2       53,7G  2,67T      0      0      0      0
tank2       54,1G  2,67T      0      0      0      0
tank2       54,3G  2,67T      0      0      0      0
tank2       54,6G  2,67T      0      0      0      0
tank2       54,8G  2,67T      0      0      0      0
tank2       55,3G  2,66T      0      0      0      0
tank2       55,8G  2,66T      0      0      0      0
tank2       56,1G  2,66T      0      0      0      0
tank2       56,6G  2,66T      0      0      0      0
tank2       57,1G  2,66T      0      0      0      0
tank2       57,4G  2,66T      0      0      0      0
tank2       57,9G  2,66T      0      0      0      0
tank2       58,4G  2,66T      0      0      0      0
tank2       58,9G  2,66T      0      0      0      0
tank2       59,2G  2,66T      0      0      0      0
tank2       59,7G  2,66T      0      0      0      0
^C

>How-To-Repeat:
Create two zpool.
In the first a few zfs volume.
Start data transfer through the zfs snapshots
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:
