Pawel,
Have you grown your volumes lately? If so, how many disks did you
add to the volumes when you grew them? I have seen customers who have
volumes that are at 90%-95% and they add one or two disks to increase the
disk space for the volume. What this does is creates a hot spot where any
new writes going to those volumes only gets written to the 1 or two disks
which were added = bad performance because WAFL is not able to stripe across
all the disks in the volume.
Mike
-----Original Message-----
From: Pawel Rogocz [mailto:pawel@rogocz.com]
Sent: Thursday, October 31, 2002 4:16 PM
To: Mike Ball; toasters(a)mathworks.com
Subject: RE: My F820 is slow ....
Here it is:
/vol/vol1/ 338309500 292869428 45440072 87% /vol/vol1/
/vol/vol1/.snapshot 37589944 16548736 21041208 44%
/vol/vol1/.snapshot
/vol/vol2/ 338309500 303317696 34991804 90% /vol/vol2/
/vol/vol2/.snapshot 37589944 13034816 24555128 35%
/vol/vol2/.snapshot
/vol/vol0/ 50119928 1674084 48445844 3% /vol/vol0/
/vol/vol0/.snapshot 12529980 142548 12387432 1%
/vol/vol0/.snapshot
/vol/vol3/ 112769836 63064324 49705512 56% /vol/vol3/
/vol/vol3/.snapshot 12529980 20120056 0 161%
/vol/vol3/.snapshot
/vol/vol4/ 338309500 269767512 68541988 80% /vol/vol4/
/vol/vol4/.snapshot 37589944 13586164 24003780 36%
/vol/vol4/.snapshot
-----Original Message-----
From: Mike Ball [mailto:MBall@DATALINK.com]
Sent: Thursday, October 31, 2002 12:22 PM
To: 'Pawel Rogocz'; toasters(a)mathworks.com
Subject: RE: My F820 is slow ....
Pawel,
Are your file systems becoming full (type "df" from netapp")?
Mike
-----Original Message-----
From: Pawel Rogocz [mailto:pawel@rogocz.com]
Sent: Thursday, October 31, 2002 1:24 PM
To: toasters(a)mathworks.com
Subject: My F820 is slow ....
I run 6.2.1 on F820 and I have bunch of Sun boxes ( around 60 ) who do
NFS mounts.
The filer has more than one volume and sometimes during the day the output
of systat -x shows 100% disk util for a couple of minutes.
1. Is there a way to find out which volume/disk is causing bottleneck ?
2. Is there a way to find which client is causing the load to spike ?
3. Can disk util be monitored via SNMP ? I was not able to find anything
in the MIB provided on NOW.
thanks,
Pawel
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