Webinar topic: Using Zettabyte Filesystem (ZFS) Presenter: Achmad Mardiansyah In this webinar series, How Using Zettabyte Filesystem (ZFS) Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback Check our schedule for future events: https://www.glcnetworks.com/en/schedule/ Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord Recording available on Youtube https://youtu.be/or3duBUZzIs

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Using Zettabyte
Filesystem (ZFS)
GLC webinar, 13 Jan 2022
Achmad Mardiansyah
achmad@glcnetworks.com
GLC Networks, Indonesia
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Agenda
● Introduction
● Review prerequisite knowledge
● Filesystem
● Traditional File System
● Volume Manager
● ZFS
● Live practice
● Q & A
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introduction
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What is GLC?
● Garda Lintas Cakrawala (www.glcnetworks.com)
● Based in Bandung, Indonesia
● Areas: Training, IT Consulting
● Certified partner for: Mikrotik, Ubiquity, Linux foundation
● Product: GLC radius manager
● Regular event
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Trainer Introduction
● Name: Achmad Mardiansyah
● Base: bandung, Indonesia
● Linux user since 1999, mikrotik user since 2007, UBNT
2011
● Mikrotik Certified Trainer
(MTCNA/RE/WE/UME/INE/TCE/IPv6)
● Mikrotik/Linux Certified Consultant
● Website contributor: achmadjournal.com, mikrotik.tips,
asysadmin.tips
● More info:
http://au.linkedin.com/in/achmadmardiansyah
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Past experience
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● 2021 (Congo DRC, Malaysia): network support,
radius/billing integration
● 2020 (Congo DRC, Malaysia): IOT integration,
network automation
● 2019, Congo (DRC): build a wireless ISP from
ground-up
● 2018, Malaysia: network revamp, develop billing
solution and integration, setup dynamic routing
● 2017, Libya (north africa): remote wireless migration
for a new Wireless ISP
● 2016, United Kingdom: workshop for wireless ISP,
migrating a bridged to routed network

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About GLC webinar?
● First webinar: january 1, 2010 (title:
tahun baru bersama solaris - new year
with solaris OS)
● As a sharing event with various topics:
linux, networking, wireless, database,
programming, etc
● Regular schedule
● Irregular schedule: as needed
● Checking schedule:
http://www.glcnetworks.com/schedule
● You are invited to be a presenter
○ No need to be an expert
○ This is a forum for sharing: knowledge,
experiences, information
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Please introduce yourself
● Your name
● Your company/university?
● Your networking experience?
● Your mikrotik experience?
● Your expectation from this course?
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Prerequisite
● This presentation requires some prerequisite knowledge
● We assume you already know:
○ Partition, Filesystem
○ Volume manager
○ Linux administration
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Review prerequisite knowledge
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Storage (harddisk)
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Disk partition
● Disk label / partition table:
○ DOS
○ GPT
● Harddisk starts from outer cylinder
● DVDrom starts from inner cylinder
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Source: cnj.steerstangani.pw

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File system
File system
● A system that controls how data is
stored and retrieved
● Part of operating system
● Designed based storage: disk, tape,
cdrom, network,
● Example:
○ Microsoft: DOS/FAT, NTFS
○ Linux: ext2, ext3, ext4, XFS
○ BSD: UFS, ZFS
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File hierarchy standard (FHS)
● FHS defines the directory structure and directory contents in Linux
distributions
● FHS is maintained by the Linux Foundation
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Traditional partition
● Based on physical parameters (sector) → Not flexible
● Steps: Partitioning, formatting, mounting
○
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Traditional File System
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Traditional file system
● Based on physical parameters
● Not flexible
● Example: ext2, ext3, ext4, XFS, etc
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Volume Manager
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Logical Volume Manager
A flexible way to manage file system
● Benefits:
○ volume can consist of more than one disk
○ easy resize operations
○ easy replacement of failing disk
○ advanced options: snapshot
○ easy to add new volume (up to 256 LV)
● Creating LVM storage
○ physical volume (PV) -> Volume group (VG) ->
Logical volume (LV)
○ mkfs /dev/VG/LV -> create filesystem on LV
●
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Source: www.redhat.com

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Zettabyte File System (ZFS)
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ZFS features
● End-to-end data integrity
○ Checksum + copy-on-write
○ Disk scrubbing, RAIDZ protection
● Easy administration
○ Combination of FS, RAID, Volume Manager. No need /etc/fstab
○ Only 2 commands: zpool, zfs
○ ZFS Web interface
○ Snapshot, clones, export, import, migration
● Immense capacity
○ 128bit metadata
○ Compression
○ Deduplication
● High performance
○ Intelligent pre-fetch
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Copy-On-Write (COW)
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End-to-end checksum
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Self-healing data
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LIVE practice
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preparation
● SSH client
● SSH parameters
○ SSH address
○ SSH port
○ SSH username
○ SSH password
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Q & A
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Interested? Just come to our training...
● Topics are arranged in systematic and logical way
● You will learn from experienced teacher
● Not only learn the materials, but also sharing experiences, best-practices, and
networking
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End of slides
● Thank you for your attention
● Please submit your feedback: http://bit.ly/glcfeedback
● Like our facebook page: https://www.facebook.com/glcnetworks
● Slide: http://www.slideshare.net/r41nbuw
● Recording (youtube): https://goo.gl/28ABHU
● Stay tune with our schedule
● Any questions?
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