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Storage

I have spent a lot of time with various vendors support departments; and I have to say, Netapp has one of the best support departments.  If I call Netapp at 2:00 AM on a Sunday morning, I can get someone on the phone right away.  My one complaint is that I cannot open a ticket via E-Mail.  Fortunately that is not a big hurdle to cross.

When you are working with Netapp support you can either open a ticket over the phone or via the Now website.  If you do not have a NOW login, I would recommend getting one.  The NOW site is what will give you access to Netapp Documentation, Updates for your Filer, performance metrics from your Filer, and access to the support Portal.

In today's video I will cover how to configure Open Filer; including authentication, creating volumes and several connection protocols.  For information on how to install Open Filer, please see my tutorial on installing open filer.  That can be found at the following link:

http://www.everythingvm.com/content/openfiler-version-23-install-tutorial

*Note* Written instructions are at the bottom of the page

Today's video shows how to install Open Filer in a Virtual Machine. I will be including more videos soon on how to configure the various parts of Open Filer.

Open Filer is a very easy to use storage system which integrates with Active Directory and LDAP. It supports NFS, iSCSI, SMB, etc... It has many features including Snapshots, Replication, and High Availability. There is a both a Community Version (Free) and a Commercial Version (Not Free).

When troubleshooting performance issues on a Netapp storage system, Perfstat is a very useful utility.  There are other ways to get performance statistics, but they are not quite as detailed.

The perfstat file at first glance can be rather daunting.  Perfstat files get very large, very fast, and may scare away the faint at heart.  But, if you spend a little time looking them over, they start to make some sense.

For the purpose of this article I am going to focus on three areas which will help you to pinpoint the performance problem you be experiencing on your SAN; these areas are Disk, CPU, and Network.
 

In the field of storage, you used to be able to simply buy enough hard drives to fill your space needs and you would end up with sufficient disks to fulfill your performance needs.  Unfortunately with hard disks getting so large, this is no longer the case.

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