Название: Troubleshooting Linux Storage : a systems administrator guide
Автор: Erwin van Londen
Издательство: Leanpub
Год: 2022-10-04
Страниц: 231
Язык: английский
Формат: pdf (true)
Размер: 10.2 MB

There are hundreds of way to troubleshoot storage related issues, and this book is not a silver bullet to solve all your problems!. What this book will attempt is to provide you a methodology into troubleshooting a range of storage problems and try to recover from these as soon as possible.

What this book will do is provide you a methodology into troubleshooting scenario’s that as a result of storage relate infrastructure problem either connected to local or SAN attached storage. I will not touch on a few things like for example FCoE from a technology side, as these may divert into a rabbit hole. I may give these technologies more attention in later articles or updated versions of the book. I’m not saying these are bad technologies but I have to make a start somewhere. Another topic that is not covered in-depth is performance. There are tips and tricks throughout the book that will or may improve your overall storage infrastructure and therefore also performance. Although I do understand that performance is always a hot topic it would go too far to incorporate it in this book at this stage.

The Linux ecosystem is so diverse and there are so many brands, flavours, colours etc. that it is impossible to touch on each and every single one. From an enterprise perspective there are basically two major players Redhat and SUSE. Yes, yes, I know there is also OEL, Ubuntu, Debian etc etc but I’ll cut off at the first one Redhat or a derivative Centos as well as SUSE. Reason is that the underlying technology is not that different between each of them and the methodology remains the same. Thing that may differ are naming conventions, file locations and some tools that may be present in one distro and not the other. I’ll leave it up the reader to determine which tools and methods are applicable to his/her environment. As the above already shows it would be impossible to write a book that covers everything related to storage in a Linux environment. Mainly if that would be the goal you would have to pick a point in time on a Linux kernel version related to one or two distributions and go with that.

Prerequisites:
There is some knowledge required of storage and storage infrastructures so knowing what a storage array, fibre-channel switch, lun and disks are is assumed. Also some familiarity of the linux command-line interface is required as most tools for troubleshooting purposes are cli based.