On Thu, 23 Jan 2003 Ambrose_Earle@shamrockfoods.com wrote:

Does anyone have any (good) experience with the wafl scan commands?

I'd like to hear more about this `wafl scan` command...

Until next time...

The MathWorks, Inc. 508-647-7000 x7792 3 Apple Hill Drive, Natick, MA 01760-2098 508-647-7001 FAX tmerrill@mathworks.com http://www.mathworks.com ---

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The mem_scrub_stats is 68% complete and the disk write activity has ceased. So I can only assume that when the memory scrub is first started it does some disk writing of some sort. Didn't see anything in /vol/vol0/etc growing so I am at a loss to explain it.

Thanks for all the responses.

art hebert

-----Original Message----- From: Art Hebert [mailto:art@arzoon.com] Sent: Thursday, March 06, 2003 8:24 AM To: 'Borders, Rich'; Art Hebert; toasters@mathworks.com Subject: RE: Disk writes occuring when no network activity?

What I did was completely wipe out the netapp and reinstall 6.1.2R3. We are reracking our qa lab so I figured it would be a good time to let our Microsoft admin get to learn how to install a netapp, etc. So its a fresh install and before we put our databases back on it I did a sysstat and noticed the activity. I've let it run overnight so maybe the memory scrubs are finished and that was the activity.

I am hoping at some point we can upgrade the netapps we have to the 960's and I can maybe get to attend Netapp training to get some inside knowledge of the boxes.

We are running on a nonexistant budget and its tough supporting all this gear without maintenance contracts.

art

-----Original Message----- From: Borders, Rich [mailto:Rich.Borders@netapp.com] Sent: Thursday, March 06, 2003 2:52 AM To: Art Hebert; toasters@mathworks.com Subject: RE: Disk writes occuring when no network activity?

Disk Scrubs? Did you just upgrade?

-----Original Message----- From: Art Hebert [mailto:art@arzoon.com] Sent: Wednesday, March 05, 2003 11:02 PM To: toasters@mathworks.com

Would anybody know why I have disk writes occurring on my netapp when it is completely disconnected from the network. It is doing memory scrubs, but would this cause writes to the disk?

Here is what sysstat looks like. As you can see there isn't any nfs, cifs or http activity. On my other filers that are hooked up to a network the Disk writes go to zero when there isn't any activity.

smf760-01*> sysstat 1 CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache in out read write read write age 2% 0 0 0 0 0 0 762 0 0 59 1% 0 0 0 0 0 0 740 0 0 59 2% 0 0 0 0 0 0 752 0 0 59 1% 0 0 0 0 0 0 764 0 0 59 2% 0 0 0 0 0 0 788 0 0 59 1% 0 0 0 0 0 0 788 0 0 59 2% 0 0 0 0 0 0 784 0 0 59 1% 0 0 0 0 0 0 808 0 0 59 2% 0 0 0 0 0 0 804 0 0 59 3% 0 0 0 0 0 156 1108 0 0 59 2% 0 0 0 0 0 0 824 0 0 60 1% 0 0 0 0 0 0 868 0 0 60 2% 0 0 0 0 0 0 888 0 0 60 4% 0 0 0 0 0 0 880 0 0 60 2% 0 0 0 0 0 0 844 0 0 60 2% 0 0 0 0 0 0 892 0 0 60 2% 0 0 0 0 0 0 872 0 0 60 1% 0 0 0 0 0 0 880 0 0 60 2% 0 0 0 0 0 0 884 0 0 60 CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache in out read write read write age 1% 0 0 0 0 0 0 852 0 0 60 4% 0 0 0 0 0 164 1148 0 0 60

Thanks

art