Hi FPS France, :)
You're probably experiencing bug 18560 http://now.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=18560.
The destination volume displays the default snap reserve of 20%. This is fixed in DataONTAP 6.0 and above, whereby the snap reserve set on the source volume is propagated to the destination.
See NOW for current GA release - 6.0.1R3 at the time of writing.
Regards,
Matt.
________________________________________________________________
Matthew Brookes mailto:mbrookes@netapp.com
Systems Engineer http://www.netapp.com
Network Appliance Tel: +353 1 4064600
Unit 36, Rathfarnham Gate Fax: +353 1 4064601
Dublin 14, IRELAND Mob: +353 87 8575127
-----Original Message-----
From: FPS France [mailto:fpsfrance@fps.fr]
Sent: 03 July 2001 17:10
To: toasters@mathworks.com
Subject: Snapmirror, Snapshots and DF output
FPS France
Hi,
We had installed a snapmirror configuration with the following
particular trick : snap reserve volX 5 as the costumer would limit the
snapshot space consuption.
Now the snapmirror service works fine, the costumer
outlined something
strange in the DF output from each Filers.
Each Filer has a root volume mirrored on the other Filer.
As u can see
below, sources volumes are vol0 and mirrors volumes are mir_vol0.
From my calculation (less or more), I can check that for
vol0's volumes,
we had a snapshots reserved space around 5%, but in mir_vol0's we have
roughtly four times the snap space consuption more than the
source volume
(31.8 vs 7.9 and 15.6 vs 3.9 : 5% vs 20%). Before making those volumes
snapmirror destinations we took care to modify the snap
reserve to 5%. So
why do we got those outputs ? Any idea ? Any experience with
the df command
snap reserve 5 and snapmirror ?
All of this run on 5.3.7R3, F740.
Netapp 1 :
<<
===== DF =====
Filesystem kbytes used avail capacity
Mounted on
/vol/vol0/ 150937460 137664288 13273172 91%
/vol/vol0/
/vol/vol0/.snapshot 7944076 1473572 6470504 19%
/vol/vol0/.snapshot
/vol/mir_vol0/ 62593232 155988 62437244 0%
/vol/mir_vol0/
/vol/mir_vol0/.snapshot 15648304 510236 15138068 3%
/vol/mir_vol0/.snapshot
Netapp2 :
<<
===== DF =====
Filesystem kbytes used avail capacity
Mounted on
/vol/vol0/ 74329460 155988 74173472 0%
/vol/vol0/
/vol/vol0/.snapshot 3912076 510236 3401840 13%
/vol/vol0/.snapshot
/vol/mir_vol0/ 127105232 137664288 0 108%
/vol/mir_vol0/
/vol/mir_vol0/.snapshot 31776304 1473572 30302732 5%
/vol/mir_vol0/.snapshot
Brookes, Matt