Sometimes you need to completely wipe the “cifs setup” configuration. For example, I’m currently writing some documentation and need a clean cifs setup to start from scratch.

Steps

cylon> cifs terminate
cylon> priv set advanced
cylon*> mv /etc/cifsconfig_setup.cfg /etc/cifsconfig_setup.cfg.bak
cylon*> priv set
cylon> cifs restart
CIFS not configured. Use "cifs setup" to configure
cylon> cifs setup

I found the steps via a search on NetApp’s forums. Here’s the thread for more background: How to Remove CIFS from a Filer?

User aborzenkov‘s post has the answer I was looking for :)

Abstract

This blog post covers how I tracked down when SMB 2.1 support was re-enabled in ONTAP 8.1.x 7-mode, having been disabled in the initial release of 8.1.2.

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Scope

This guide is written for fixing a corrupt or broken RLM firmware. It is applicable to both 4.x and 3.x versions of the RLM firmware. Although this may help with other corrupt or broken RLM issues, the most common error this fixes is

[rlm.firmware.update.failed:warning]: RLM firmware update failed, Error Flashing linux.

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Last week, via a tweet from Frank Denneman, I discovered a whitepaper that covers the differences between storage IOPS and storage throughput, as well as best practises for performance benchmarking.

As someone relatively new to the inner workings of storage, I found it very enlightening. Particularly the fact that there’s a clear difference between IOPS and throughput, and you need to decide what you want from a storage system before you benchmark it. Well worth a read, even if it’s the first 9 pages which covers the different types of workload (IOPS vs Storage).

The whitepaper from EMC is here: Elements Of Performance And Testing Best Practices Defined
Frank’s post, with a summary of the white paper is here: Awesome read: Storage Performance And Testing Best Practices

Share and enjoy

This post covers how to check the current firmware version of your disk shelves in a NetApp FAS storage system

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