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Issues Testing NFS mount with IOMeter

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Issues Testing NFS mount with IOMeter

bremma
Hello all,

I am working on testing IO performance on a NFS mount in a system I work with. As some background, this NAS is working with an inline hardware encryption, and the mount on the system is able to be read/written to by the root user, which Dynamo is being ran as.

In attempting to test this system, when I click the start test button, I see the following:

Preparing disks
  /enc preparing
***Could not open disk
  /enc done

I've attempted adjusting the folder permissions with no change in operation, as well as simply doing a 'touch' to make an iobw.tst file, and then chmod 777 on it. I do notice that after getting the same error, the permissions on the file change to 600. I've also try changing dynamo's owner to root (from 500).

Regardless, I keep getting this error. I am able to access / on this sever with iometer/dynamo without issue, but I do see the same issue with another NFS mount that is not encrypted.

I am open to any suggestions on things to try, and if more information is needed, I can try to get it. Thanks!

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Re: Issues Testing NFS mount with IOMeter

Neto, Antonio Jose Rodrigues
Hi,

This is neto from Brazil

How are you?

Please try this:

close IOmeter and Dynamo

cd /enc

dd if=/dev/zero of=/enc/iobw.tst bs=32768 count=1638400

1638400 * 32768 = 50Gb (assuming you want 50GB)

After that, make sure you have permission inside the directory

cd /enc
chmod 777 .

Start IOmeter and Dynamo - please check that /enc won't have the red flag.

Try :-) and please let us know the results.

All the best

neto
-----Original Message-----
From: bremma [mailto:[hidden email]]
Sent: Thursday, August 23, 2012 11:41 AM
To: [hidden email]
Subject: [Iometer-user] Issues Testing NFS mount with IOMeter


Hello all,

I am working on testing IO performance on a NFS mount in a system I work with. As some background, this NAS is working with an inline hardware encryption, and the mount on the system is able to be read/written to by the root user, which Dynamo is being ran as.

In attempting to test this system, when I click the start test button, I see the following:

Preparing disks
  /enc preparing
***Could not open disk
  /enc done

I've attempted adjusting the folder permissions with no change in operation, as well as simply doing a 'touch' to make an iobw.tst file, and then chmod
777 on it. I do notice that after getting the same error, the permissions on the file change to 600. I've also try changing dynamo's owner to root (from 500).

Regardless, I keep getting this error. I am able to access / on this sever with iometer/dynamo without issue, but I do see the same issue with another NFS mount that is not encrypted.

I am open to any suggestions on things to try, and if more information is needed, I can try to get it. Thanks!


--
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Re: Issues Testing NFS mount with IOMeter

Neto, Antonio Jose Rodrigues
In reply to this post by bremma
Hello Heather,

This is neto from Brazil

How are you?

Glad to see that I could help. I am very happy.

Please count on me for any help

All the best

neto
NetApp - I love this company!
-----Original Message-----
From: Selbe, Heather [mailto:[hidden email]]
Sent: Thursday, August 23, 2012 12:39 PM
To: Neto, Antonio Jose Rodrigues; [hidden email]
Subject: RE: [Iometer-user] Issues Testing NFS mount with IOMeter

neto,

Thank you! Those directions did the trick. I now feel silly for not making the file a size beyond zero, but at least testing now runs.

-----Original Message-----
From: Neto, Antonio Jose Rodrigues
[mailto:[hidden email]]
Sent: Thursday, August 23, 2012 11:56 AM
To: Selbe, Heather; [hidden email]
Subject: RE: [Iometer-user] Issues Testing NFS mount with IOMeter

Hi,

This is neto from Brazil

How are you?

Please try this:

close IOmeter and Dynamo

cd /enc

dd if=/dev/zero of=/enc/iobw.tst bs=32768 count=1638400

1638400 * 32768 = 50Gb (assuming you want 50GB)

After that, make sure you have permission inside the directory

cd /enc
chmod 777 .

Start IOmeter and Dynamo - please check that /enc won't have the red flag.

Try :-) and please let us know the results.

All the best

neto
-----Original Message-----
From: bremma [mailto:[hidden email]]
Sent: Thursday, August 23, 2012 11:41 AM
To: [hidden email]
Subject: [Iometer-user] Issues Testing NFS mount with IOMeter


Hello all,

I am working on testing IO performance on a NFS mount in a system I work
with. As some background, this NAS is working with an inline hardware
encryption, and the mount on the system is able to be read/written to by
the root user, which Dynamo is being ran as.

In attempting to test this system, when I click the start test button, I
see the following:

Preparing disks
  /enc preparing
***Could not open disk
  /enc done

I've attempted adjusting the folder permissions with no change in
operation, as well as simply doing a 'touch' to make an iobw.tst file,
and then chmod
777 on it. I do notice that after getting the same error, the
permissions on the file change to 600. I've also try changing dynamo's
owner to root (from 500).

Regardless, I keep getting this error. I am able to access / on this
sever with iometer/dynamo without issue, but I do see the same issue
with another NFS mount that is not encrypted.

I am open to any suggestions on things to try, and if more information
is needed, I can try to get it. Thanks!


--
View this message in context:
http://old.nabble.com/Issues-Testing-NFS-mount-with-IOMeter-tp34340100p3
4340100.html
Sent from the iometer-user mailing list archive at Nabble.com.


------------------------------------------------------------------------
------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond.
Discussions
will include endpoint security, mobile security and the latest in
malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Iometer-user mailing list
[hidden email]
https://lists.sourceforge.net/lists/listinfo/iometer-user

------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Iometer-user mailing list
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