Audit of SAN and Storage Infractructure. Part 1 — Gathering information

Автор: | 3 июня, 2018

The first step of any audition IT infrastructure is a gathering information about it. What information you really need and how it can be recieved you should discuss with customer — this is the main purpose of audition. If customer has any problems (hardware failures, software or microcodes bugs which impact perfomance) in SAN and storage part you can use:

  • SAN Health — this is must have. Even in case of Cisco-based SAN you can imagine the scope of your audit and realize how much time, people resourses and so on you will need.
  • Native (embedeed) tools in each storage. The most of them (like Hitachi, Huawei, DellEMC, Netapp) has pretty simple configuration files or uses API or additional tools for gathering perfomance too.
  • Third part tools, like XORUX.

Below I want to share some expirience with gathering configurations and perfomance metric via XORUX. This is official web site — http://www.stor2rrd.com/

This partitially free product consist of stor2rrd and lpar2rrd. The first one need for SAN and storage performance and capacity monitoring. The second one — for VMware host and IBM LPAR.

Installation part is simple — there is .ovf template which you need to deploy in your VMware environment, change IP address (via nmtui utillity) and go to web browser. Then you add switches and storages as specified in the instructions. Waiting for suitable time, usually it the end of the mouth or any time interval with the highest activity.

In my case customer already has 3 virtual machines — two VM with stor2rrd for monitoring storages and one VM for monitoring all type of switches (TOR, blade switches, directors).

As official forum doesn`t have information about how you can migrate data from one stor2rrd to another, I found to chooses:

  1.  Export VM to template and deploy it in local sandbox (or VM Workstation). It is not an option in some companies who cares about security.
  2. Using tar utillity make an archive of home folder (/home/stor2rrd/) and just copy it on new VM from scratch (in my case in VM Workstation). This is how it looks like:

Content of home folder /home/stor2rrd/:

After copying folder to target VM you can go to web browser and start application:

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