ZFS on Ubuntu 20.04 LTS
$15.00
Minimum price
$25.00
Suggested price
ZFS on Ubuntu 20.04 LTS
Working with ZFS 0.7 and 0.8.3 on Ubuntu Linux
About the Book
It covers installing it on Ubuntu 20.04 LTS, and operating and troubleshooting it with different hardware:
- SAS SSD
- Typical SATA onboard controller and LSI SAS IO HBA controller.
- SATA3 SSD
- SATA3 HDD
- 2.5" and 3.5"
It explains advantages and disadvantages of each choice, and expected speed.
It covers troubleshooting at Linux level, Kernel, and with ZFS pools.
Offers advanced tricks and tips from my experience leading ZFS projects.
Feel free to register with your email, and get any future updates for free, and to provide me feedback on what you would like to be added to the book.
About the Author
Bundles that include this book
4 Books
Suggested Price
$35.00
Bundle Price
Table of Contents
- Dedication.............................................................................................................................................5
- Introduction..........................................................................................................................................6
- Key aspects of ZFS...............................................................................................................................7
- Hardware choices.................................................................................................................................9
- Choosing the Server.........................................................................................................................9
- Practical case: a ZFS Server, AMD Based................................................................................10
- Practical case: a ZFS Server, Intel Based..................................................................................12
- Choosing SAS or SATA, SSD or Spinning, 2.5” or 3.5” drives....................................................14
- Drives die..................................................................................................................................16
- The value of your Data..............................................................................................................17
- Testing the infrastructure...........................................................................................................17
- Assembling the UPS......................................................................................................................17
- Adding an internal hot swap drives case.......................................................................................20
- Icy Dock MB326SP-B SATA Rack (1U) Black disk array - disk arrays (HDD, SSD, Serial
- ATA III, Serial Attached SCSI, SATA, Rack (1U), Black, HDD, Power)................................20
- Planning your Architecture.................................................................................................................22
- Erasure Coding, RAID, redundancy..............................................................................................22
- SAS Controller or SATA Controller..............................................................................................22
- Useful Linux Operations on Drives....................................................................................................22
- Seeing your drives in Linux...........................................................................................................22
- Seeing your drives by Id...........................................................................................................22
- lsblk...........................................................................................................................................23
- Don’t relay in device names, use ids.........................................................................................24
- See the partitions.......................................................................................................................26
- Know the sequential read speed of a drive................................................................................26
- Wipe a drive..............................................................................................................................28
- Using ZFS Software...........................................................................................................................29
- Installing ZFS................................................................................................................................29
- ZFS Commands..................................................................................................................................30
- Man zfs..........................................................................................................................................30
- zfs gell all.......................................................................................................................................31
- zfs set.............................................................................................................................................31
- zfs create -V (Create Volume)........................................................................................................31
- Create a partition.......................................................................................................................32
- Format the partitioned Volume..................................................................................................34
- Mount the Volume.....................................................................................................................34
- About the speed of the ZVOL...................................................................................................34
- Zpool Commands...............................................................................................................................35
- zpool create raidz1 (first part)........................................................................................................35
- zpool list.........................................................................................................................................37
- zfs list.............................................................................................................................................37
- zpool destroy..................................................................................................................................37
- zpool create raidz1 (second part)...................................................................................................38
- Creating a pool with drives of different size and nature...........................................................39
- Errors on the drives...................................................................................................................40
- zpool status -v................................................................................................................................41
- Creating a pool with 2 mirror vdevs from different type, but compatible.....................................42
- Attempting to create a pool with drives in use for another pool...............................................42
- 2 / 140Creating a pool when a drive is falsely detected by in use in another pool..............................42
- Enabling compression in a pool................................................................................................43
- zpool status....................................................................................................................................44
- zpool iostat.....................................................................................................................................45
- zpool create mirror (second part)...................................................................................................45
- Creating a simple mirror...........................................................................................................45
- Creating 6 drives mirroring the same information....................................................................45
- Dealing with errors in the mirroring.........................................................................................46
- zpool detach...................................................................................................................................47
- Zpool scrub....................................................................................................................................48
- Stop ongoing Scrub...................................................................................................................49
- Watch the status of the pool during Scrub................................................................................49
- Growing (expanding) the pool once the drives are bigger.............................................................51
- Zpool online..............................................................................................................................51
- Zpool replace.................................................................................................................................52
- Zpool replace using a spare drive..............................................................................................52
- Zpool replace removing the drive and inserting a new one......................................................55
- Speed Resilvering / Replacing a drive......................................................................................58
- Throttling..................................................................................................................................59
- zpool clear......................................................................................................................................60
- If you physically pull one drive.....................................................................................................61
- Troubleshooting the IO errors........................................................................................................65
- Removing the mirror causing errors..............................................................................................67
- Creating a pool using partitions.....................................................................................................71
- Using fdisk to create partitions.................................................................................................72
- Cloning the partition table.........................................................................................................75
- Creating the pool with the second partition..............................................................................76
- zpool export...................................................................................................................................77
- zpool import...................................................................................................................................77
- The mistery is solved................................................................................................................81
- Compatible enclosures..............................................................................................................82
- Verifying the drives and cables by creating a new pool................................................................83
- Destroy the pools......................................................................................................................83
- Creating the pool.......................................................................................................................84
- zpool status, in deep.......................................................................................................................87
- Adding a Hot Spare........................................................................................................................88
- The Zed Service.............................................................................................................................89
- Creating a Pool for home, all the steps...............................................................................................93
- Sharing the Dataset via NFS..........................................................................................................99
- Advanced tricks................................................................................................................................100
- Using ZVOLs for providing Block Device Storage to Virtual Machines....................................100
- Improving iSCSI performance for Block Devices (ZVOL Volumes)..........................................100
- Adding a RAMDISK as SLOG ZIL to ZFS................................................................................100
- Creating a VM for compiling ZFS sources with RHEL6.10.......................................................104
- This trick describes how to compile and install ZFS 7.x for RHEL6..........................................104
- Steps to compile the code:...........................................................................................................104
- Make sure the ZFS file exists under zfs/contrib/initramfs/scripts/local-top/..........................104
- Inside root source folder, execute the following commands...................................................106
- Execute Auto generate script:......................................................................................................106
- Execute configuration script:.......................................................................................................106
- Please note we use this specific configuration for bettter results and you may not need it:........106
- Create rpms:.................................................................................................................................106
- Remove all test rpms. Those will generate conflicts, and as they are for running the tests, can be
- removed from the final release....................................................................................................106
- Install all created rpms on the desired RHEL6.10 Server.......................................................106
- Verify that zfs is been installed:...................................................................................................106
- This command will display zfs help............................................................................................106
- Optional: Adding a custom version name for your compiled ZFS version.............................106
- Another interesting trick I instructed my Team to do is to add a version number to zfs, with a
- parameter -v or –version..............................................................................................................106
- In my code is line 7926, then add:...............................................................................................107
- You can check the Kernel Module info by using modinfo zfs, but I found it handy to allow to just
- do:................................................................................................................................................107
- Creating a compressed filesystem with Linux and ZFS..............................................................108
- Benchmark the speed of a pool....................................................................................................111
- Generate the Random file........................................................................................................111
- Read the Random file..............................................................................................................111
- Creating a partition bigger than 2TiB..........................................................................................111
- ZFS is unable to use a disk..........................................................................................................113
- Filling a half Petabyte pool as fast as possible............................................................................113
- Creating a Sparse file that you can partition or create a loopback on it......................................116
- Troubleshooting upgrading and loading a ZFS module in RHEL7.4..........................................117
- Create a small partition on the drives for tests.............................................................................119
- Get the list of drives in the system..........................................................................................119
- Do the loop with for DRIVE in $DRIVES or manually........................................................119
- Forcing a Kernel Panic in CentOS or RHEL...............................................................................120
- Simulating a SAS physical pull out of a drive.............................................................................120
- To delete a disk (Linux stop seeing it until next reboot/power cycle)....................................120
- Set a disk offline......................................................................................................................120
- Online the disk........................................................................................................................120
- Scan all hosts, rescan..............................................................................................................121
- Disabling the port in the expander..........................................................................................121
- Kill one drive, indicating the wwn...............................................................................................121
- Extend existing Single ZFS disk with a mirror without losing the Data on the existing HDD...122
- Seeing which drives are available for ZFS on a zoning on a multi-IOC, multi-motherboard,
- system like NDS-4600.................................................................................................................125
- Troubleshooting................................................................................................................................127
- Bibliography and Resources.............................................................................................................140
- Introducing ZFS on Linux...........................................................................................................140
- ZFS on Linux...............................................................................................................................140
- Zfs-discuss...................................................................................................................................140
The Leanpub 60-day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$11,193,725writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
500 QUIZ MMG COMMENTATI (parte 2)
ALS Medicina Generale400 quiz dei concorsi degli anni precedenti + 100 quiz inediti
Suddivisi per area (cardio, gastro, endocrino etc.)
Griglia risposte vuote per esercitazioni e correttore ministeriale
Commento alla risposta con link alla fonte per facilitare lo studio
- #2
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
- #3
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #4
500 QUIZ MMG COMMENTATI (parte 1)
ALS Medicina Generale500 Quiz degli ULTIMI Concorsi di Medicina Generale (2014/2016/2017/2018/2019)
Riassunti e suddivisi per area con Griglia risposte vuota e Griglia risposte esatte Ministeriale
Commentati con link alla fonte per approfondimento e ausilio allo studio
- #5
NetSuite Development With SuiteScript 2.0
Alien Torres and Matt DahseThis book is packed with real-world use cases detailing how to use SuiteScript 2.0, Workflows, Searches, Advanced PDF templates and more to customize NetSuite to your business needs and master your ERP! It includes downloadable SuiteScript samples, and hundreds of index entries to put all the tips, tricks and snippets at your fingertips.
- #6
Understanding JavaScript Promises
Nicholas C. ZakasLearn all about JavaScript promises from veteran JavaScript author Nicholas C. Zakas.
- #7
C++20 - The Complete Guide
Nicolai M. JosuttisAll the new language and library features of C++20 (for those who know previous versions).
The book presents all new language and library features of C++20. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps.
Buy early, pay less, free updates.
Other books:
- #8
Cloud Strategy
Gregor Hohpe“Strategy is the difference between making a wish and making it come true.” A successful migration to the cloud can transform your organization, but it shouldn’t be driven by wishes. This book tells you how to develop a sound strategy guided by frameworks and decision models without being overly abstract nor getting lost in product details.
- #9
Algebra-Driven Design
Sandy MaguireA how-to field guide on building leak-free abstractions and algebraically designing real-world applications.
- #10
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
Top Bundles
- #1
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #2
Software Architecture for Developers: Volumes 1 & 2 - Technical leadership and communication
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #4
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming... - #6
Modern C++ Collection
3 Books
Get All about Modern C++C++ Standard Library, including C++20Concurrency with Modern C++, including C++20C++20Each book has about 200 complete code examples. Updates are included. When I update one of the books, you immediately get the updated bundle. You can expect significant updates to each new C++ standard (C++23, C++26, .. ) and also... - #8
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible... - #10
10 Books Bundle - A New Career in Tech 🚀
10 Books
Do you want to create yourself a new and profitable skillset - in one year or less? Do you want to position yourself on the right side of change finally? Do you want to work from home and set your own work schedule while choosing fun and interesting coding projects? Software developers and freelance developersearn six figuresin the US, according...
