If you are concerned about your data integrity, as you clearly are, then use ZFS. Linux 5. It also recovers from power failure easily, with the journaling system. BTRFS vs EXT4 speed and compression. 15 kernel can see our dozens of articles covering this. Precisely, it seems to be 50%. The 3TB HDD are ext4. Running AIO-Stress on the Western Digital VelociRaptor was yielding speeds not technically possible for the Serial ATA 3. Ext4 is the default file system on most Linux distributions for a reason. Ext4 vs ext3. From some of the recent Linux kernel patches, it seems some of the most popular Linux file systems, Flash-Friendly File System (F2FS), B-Tree Filesystem (Btrfs), and fourth extended filesystem. 2. I've never had an issue with either, and currently run btrfs + luks. my rough draft would be to offer an advanced option for the mount points (i. In Summary, ZFS, by contrast with EXT4, offers nearly unlimited capacity for data and metadata storage. • 3 mo. On the NVMe SSD, the four-thread FS-Mark was the fastest on XFS followed by Btrfs. It was time to do my quarterly disaster recovery drill, which involves bootstrapping my entire system from scratch using my scripts and backups. In a significant data corruption, Ext2 and Ext3 file systems are more possible and easy to recover data due to their data redundancy compared with Ext4. One of the biggest differences between them is that their supported operating system. Latency for both XFS and EXT4. Per the recommendation from RedHat: Another way to characterize this is that the Ext4 file system variants tend to perform better on systems that have limited I/O capability. It is backward-compatible with older versions of Ext. Edit: I managed to save the two NTFS HDDs with chkdsk, but the exFAT drive just didn't wanna play ball. (當然另一種做法是新增硬碟, 另外格式化為 btrfs. EXT4. The one they your distribution recommends. Btrfs（技术预览）" Collapse section "6. You can hot swap drives without rebooting, remove failed drives, swap in a larger drive and remove the smaller one, all without preparing ahead of time to do so. Various benchmarks have concluded that the actual ext4 file system can perform a variety of read-write operations faster than an NTFS partition. User quotas for each shared folder. EXT4 is just a file system, as NTFS is - it doesn't really do anything for a NAS and would require either hardware or software to add some flavor. これらのファイルシステムはEXT4、Btrfs、ZFSであり、XNUMXつのファイルシステムは異なる特性を持ち、いくつかは異なるシナリオでより優れたパフォーマンスを発揮します。 外部4. Con: rumor has it that it is slower than ext3, the fsync dataloss soap. If fs performance is the only or most important thing for you, then use xfs - it's the clear winner, by far. 4. Ext4 is the default system for most Distros. Edit: fsdump / fsrestore means the corresponding system backup and restore to for that file system. 对于一些文件系统如Ext4等，在硬盘格式化时就全部确定了，而对于XFS则是动态生成的，BtrfS则是更特别的动态实现。. Also, reducing the life of my SSD by a month is worth winning an argument from which I get absolutely no benefit. The fourth generation File System of the Ext (Extended) file system family. The main thing is to use latest Linux kernels to avoid old kernel Btrfs implementation. 0-040700-generic (x86_64) Unity 7. Thanks 😊. Then later, I was actually able to convert that from btrfs-raid10. I'd say ext, because it is faster, and because you asking means, that you don't know how to use btrfs features, otherwise the choice is obvious: need snapshots -> btrfs, need reflinks -> XFS, default -> ext4. Business, Economics, and Finance. BTRFS hatte auch etwas höhere Latenz als EXT4, was bedeutet, dass es länger dauerte, bis Dateien auf dem Dateisystem zugegriffen werden konnten. The ext FilesystemsBtrfs also has snapshots so you can revert back to an earlier snapshot easily, say you run arch and some update borks your system (highly unlikely), you can simply revert back to the last good snapshot. Snapraid says if the disk size is below 16TB there are no limitations, if above 16TB the parity drive has to be XFS because the parity is a single file and EXT4 has a file size limit of 16TB. Linux 5. Since then I have come to value tooling about as much as performance. EXT4 vs. Linux 5. A execução do comando quotacheck em um sistema de. More uniquely, checksumming can detect errors in the data itself. . For a future article will be a look at non-mainlined file-systems, including ZFS On Linux. Ext4文件系统是Ext3的继承者，是Linux下的主流文件系统。经过多年的发展，它是目前最稳定的文件系统之一。但是，老实说，与其他Linux文件系统相比，它并不是最好的Linux文件系统。 在XFS vs Ext4方面，XFS在以下几个方面优. It was also during a power outage, and yes I should have had that. Both. I would stick with ext4 for the OS. We believe that btrfs has the correct feature set and roadmap to serve Ceph in the long-term, but XFS and ext4. I've heard good things about BTRFS, and I'd use XFS but I dislike that it takes an significant % of the free-space off the bat. But. showed that at the time the performance for the RAID setup was not able to compete with ext4 and ZFS. That's right, XFS "repairs" errors on the fly, whereas ext4 requires you to remount read-only and fsck. Or btrfs, which is making some serious headway again with it becoming the default filesystem for Fedora. Btrfs和Ext4都是优秀的文件系统，但在选择时需要考虑您的具体需求和使用场景。. Never use ReiserFS on a new system and if you are currently using it, consider converting it to XFS or Btrfs. If you have a NAS or Home server, BTRFS or XFS can offer benefits but then you'll have to do some extensive reading first. 7. Linux có nhiều tùy chọn hệ thống file khác nhau. Personal data is irreplaceable. Language: Format: Language and Page Formatting Options. I am getting too many input/output errors with my 3TB HDD NTFS hard disk for main files. It supports all. Ext3 and Ext4 perform better on limited bandwidth (< 200MB/s) and up to ~1,000 IOPS capability. However, BTRFS had significantly better performance with small files than EXT4. 1. I do use f2fs on all of my Raspberry Pi SD cards where it gives a huge performance boost over btrfs or ext4. 7 - EXT4 vs. The benchmark I linked attributes this to copy-on-write behaviour of btrfs. For a side-by-side feature comparison of the major file systems in SUSE Linux. How do the major file systems supported by Linux differ from each other?Btrfs, EXT4, F2FS, and XFS were tested in their out-of-the-box state / default mount options. 7. I've also heard that LVM snapshots can. 4 EXT4 / XFS / Btrfs RAID Performance On Four HDDs Storage : 2019-12-28: Benchmarking The Experimental Bcachefs File-System Against Btrfs, EXT4, F2FS, XFS & ZFS Storage : 2019-06-25: Optane SSD RAID Performance With ZFS On Linux, EXT4, XFS, Btrfs, F2FS Storage : 2019-06-20: Linux 5. Otherwise, I don't think you'd notice the performance difference. It was also 164% faster in post-snapshot reads and 17% faster in post-snapshot writes. This is because BTRFS is optimized for handling small files, while EXT4 can struggle with multiple small files due to its delayed allocation. 240GB SSD formatted as EXT4 for main OS. It utilizes a b+tree structure instead of the traditional linear layout found in most filesystems today, allowing it to better manage larger datasets more efficiently than other systems like ext4 or Xfs. Allerdings hatte BTRFS eine deutlich bessere Leistung bei kleinen. ZFS is an advanced filesystem and many of its features focus mainly on reliability. Overview of File Systems in Linux. A continuación, os vamos a explicar brevemente las principales características de EXT4 y de Btrfs. Now I may send the snapshots also to an local device (formatted in Btrfs). Yes Ext4 is much easier to setup but BTRFS has its advantages. (For example, you might have an ext4 root filesystem, but store most of your data on a zfs or btrfs pool. Btrfs has been a stable part of the Linux kernel since 2013, and you can reformat your hard drives using the file system today. If you're on HDD and you need the ability to shrink the fs, then use EXT4, but you lose any COW benefits. XFS for data, because XFS is a damn good filesystem for data and doesn't have the few edge cases that btrfs does where it sometimes isn't the best filesystem for certain profiles for example, databases, lots of tiny writes have a sometimes will slow down a btrfs filesystem. Key Btrfs features Perhaps the most important feature is the checksumming of all data. ext4 is not recommended. file-system comparison, here are some fresh benchmarks looking at the Btrfs, EXT4, F2FS, and XFS file-system benchmarks on a speedy WD_BLACK SN850 NVMe. The SATA 3. 7-rc1 Released With NVIDIA GSP & Bcachefs While Itanium IA-64 Retired Linux Kernel :. Ext4 and XFS are the fastest, as expected. For single disks over 4T, I would consider xfs over zfs or ext4. BTRFS is a filesystem with an architecture and a set of features that are similar to ZFS and with a GPL license. 14 stable and Linux 3. Using Btrfs, just expanding a zip file and trying to immediately enter that new expanded folder in Nautilus, I am presented with a “busy” spinning graphic as Nautilus is preparing to display the new folder contents. Regarding boot drives : Use enterprise grade SSDs, do not use low budget commercial grade equipment. That XFS performs best on fast storage and better hardware allowing more parallelism was my conclusion too. 3TB HDD formatted as NTFS for main files. Improve this answer. This process have two main steps: 1. Theodore Ts’o, a maintainer for Ext3 and later, Ext4, has stated that he sees Btrfs as a better way forward than continuing to rely on the ext* technology. If you're looking to warehouse big blobs of data or lots of archive and reporting; then by all means ZFS is a great choice. 1. All of these Linux. This is useful, though far less complete than the block-by-block checksums of btrfs and ZFS. Tính năng sao chép dữ liệu. Both btrfs and zfs feel like the worst options considering their overhead. In this test, Btrfs outperformed LVM in every benchmark. But I would still refrain from using it on the deck due to the case folding trouble. There won't be any noticeable difference. It's solid and tested and I'm not sure I see any benefit to another file system there. Backups and CoW, are why I use btrfs. Checksum: if your file (or some metadata) gets corrupted, the checksum will detect and in some case. ZFS is open source, it isn't "owned" by Oracle. ext4 with m=0 ext4 with m=0 and T=largefile4 xfs with crc=0 mounted them with: defaults,noatime defaults,noatime,discard defaults,noatime results show really no difference between first two, while plotting 4 at a time: time is around 8-9 hours. use ZFS only w/ ECC RAM. Its OS comes with only one by default (mostly it’s NTFS, FAT 32, or HFS). But they come with the smallest set of features compared to newer filesystems. • 2 yr. XFS still has some reliability issues, but could be good for a large data store where speed matters but rare data loss (e. 3. The only concern I have is performance, maybe btrfs in a HDD will be really slow. We recommend btrfs for testing, development, and any non-critical deployments. In the past, I have often seen statements that EXT4 is better for gaming than XFS. I'll be going RAID 6. We will determine which one is the best ZFS, BTRFS, and EXT4. The thing is I'm putting /home in a separate HDD. In the end I use ext4 as trustworthy frontend, and btrfs as a unreliable backup. You might also want to consider Btrfs for your array drives, but you should be aware of the potential risks. Diferenças básicas entre o Ext4 e o Btrfs. It would be interesting to see a new benchmark result of CoW filesystems BTRFS vs ZFS in real world 2022. Increased Performance of ext4 vs. Small to Medium Enterprises: While ext3 suffices for businesses with modest data needs, scalability visionaries would do well considering ext4. In most cases that’s EXT4, but for Fedora, OpenSuse and maybe a few others it’s btrfs. Modern Linux filesystems, such as ext4, Btrfs and JFS, do store the file creation time (aka birth time), but use different names for the field in question (crtime in ext4, otime in Btrfs and JFS). This is fundamental in determining the file system’s capacity. The preferable option depends on your specific needs and priorities. The checking task improved 14,6 %. For anything with higher capability, XFS tends to be faster. However, we also must admit that Btrfs has many advantages that Ext4 doesn’t have, for example: The question is XFS vs EXT4. For btrfs you have to do most from CLI. Hi there, I‘m thinking of changing my filesystem from ext4 to btrfs, as I have read a lot of positive things about it online. We may have lengthy talk on ext vs XFS vs f2fs and btrfs vs zfs and there are many more points to be mentioned, but for regular users. Você deve ativar as cotas na montagem inicial. A maximum. Ext4 file systems. Ext4 is probably the final evolution of the ext filesystem (which started with ext, then ext2, ext3, and now ext4). Just EXT4, yes. 암호화 기능. XFS as a similar featureset filesystem manages around 99. So if you are after the most speed for the buck and if your NAS is already doing RAID 5 or more, you could go for Ext4. Those curious about the many changes found for the file-systems and other sub-systems within the Linux 3. 특히 시놀로지에서는 데이터 보호와 백업의 용이함을 장점으로 내세운 Btrfs를 권장합니다. 1. Various internet sources suggest that XFS is faster and better, but taking into account that they also suggest that EXT4 is. and. Here are the major feature of BTFS over ext4. Pro: supported by all distro's, commercial and not, and based on ext3, so it's widely tested, stable and proven. Btrfs and Ext4 are Linux file systems but are. The use of checksums in Btrfs can prevent silent data corruption. If you are running a more stable system like Dabian based Linux EXT4 is a better choice because it's faster file system but not as easy to revert. Does that mean that if I'm using btrfs snapshots, it will not save parity data for any snapshots other than the current state of the drive, that it will only save parity data for one snapshot other than the current state of the drive, or that it will fail entirely?ZFS can also send and receive file system snapshots, a process which allows users to optimize their disk space. Btrfs（技术预览）" 6. Hi I have used BTRFS for the first time since March 2023 on my internal archives directory. The XFS supports more file sizes and greater file or partition sizes. Features of the XFS and ZFS. In some areas Btrfs was showing great improvements in performance, especially for the RAID setup, but it still lacked in some other areas. 7. Btrfs is not a successor to the default Ext4 file system used in most Linux distributions, but it can be expected to replace Ext4 in the future. 84 nvme drives split up into a small ext4 volume and the rest is btrfs. 📽️ Abonnez-vous : Devenir membre VIP : et se former à #Linux, voici ce que je vous propose dans cet. ZFS brings robustness and stability, while it avoids the corruption of large files. The major difference between ext4 and XFS file systems is that the ext4 file system works better for fewer size files (single write/read thread) while the XFS works more efficiently. Ext4 file system is an ideal choice. Ext4 and xfs are very stable, I prefer xfs with the only downside I've found you can't shrink a partition. This is not ZFS. Btrfs使用校验和来确保数据不会被破坏，另一方面，Ext4不能确保数据的完整性。 Btrfs提供了文件系统中存在的压缩算法，允许在将数据写入系统时在文件系统级进行压缩. Tweaking the config is easy if you've figured out how to build and load your own kernel. Phoronix: Linux 5. for data security and integrity zfs is the best. Ext4 - очень стабильная файловая система, которая была выбрана по. So it has no barring. 4TB HDD formatted as NTFS for backuping all other three hard disks. 2. . 0 File-System Benchmarks: Btrfs vs. Regardless what I'm doing the maximum transferrate (write) is between 40-60MB on ZFS. But, as always, your specific use case affects this greatly, and there are corner cases where any of. You can easily backup each distro without filling your disk using snapshots. ”. I am getting too many input/output errors with my 3TB HDD NTFS hard disk for main files. BTRFS hatte auch etwas höhere Latenz als EXT4, was bedeutet, dass es länger dauerte, bis Dateien auf dem Dateisystem zugegriffen werden konnten. Using multiple drives of varying sizes created a luks1 encrypted ‘single’ data and dup meta volume. g. EXT4 is very low-hassle, normal journaled filesystem. Each of these file systems has its own way of. Granted, i just use the automatic partition creater at setup, so it still uses ext4 for the /boot and /boot/efi partitions. It was later developed for Linux. . because it spans multiple partitions, it's less likely to fill up your hard drive. 其實你提到一個重點了. However, XFS is amazingly fast in the insertion phase as well as the workload execution phase. There won't be any noticeable difference. Tùy chọn mặc. XFS is better larger files and long-term maintaince and stability. Btrfs vs. If you do hardware RAID, with a dedicated RAID card, just do not use ZFS please, it will break your data at some point. EXT4 vs. Bitrot is possible, but would be extremely rare, same as bit flipping. 7 - Btrfs vs. Ext4 has journaling on by default, and new users likely won’t know how to disable it to save read/writes on their SSDs. It is intended to compete with the modern features of ZFS or Btrfs, and the speed and performance of ext4 or XFS. You didn't provide the Linux distribution information, but assuming CentOS or Red Hat, XFS is now somewhat integrated. Xfs is very opinionated as filesystems go. That one is solid and mature. #6. •. 15 Git kernels. While I have used btrfs balanced, timeshift and my other develop tool scripts for managing borg backups rely a lot on standard linux file. could go with btrfs even though it's still in beta and not recommended for production yet. The Ext4 file system is mainly used on Linux, while the NTFS file system is commonly used on Windows, and the HFS+ file system is suitable for macOS. XFS has a few features that ext4 has not like CoW but it can't be shrinked while ext4 can. 7 - EXT4 vs. 再將資料再回存到 NAS, 這部份會花費很多時間. 0 and particularly with F2FS seeing fixes as a result of it being picked up by Google for support on Pixel devices, I was curious to see. All my systems (4) have been using BTRFS for some time now without any issues. Btrfs is newer and more experimental, but offers advanced capabilities like snapshots, checksums, and inline compression. Or when it came to testing the single Seagate IronWolf 6TB HDD performance, Btrfs and EXT4 were performing about the same with a. XFS File System Support for large file sizes - The Ext4 supports a single file size of up to 16 TiB ( Tebibytes ) whereas XFS supports a max file size of up to 8 exbibytes. BTRFS has (by far) the better ecosystem of tools and utilities. Btrfs es mucho más rápido de lo que crees basándote en esos benchmarks, ya que no se ajustan a tu caso de uso. Edit: fsdump / fsrestore means the corresponding system backup and restore to for that file system. Hey Guys! Welcome to XPSTECH. Each of the five file-systems were tested on the same NVM Express SSD from the Linux 4. Page 2 of 2. Fwiw, I think XFS still handles huge files better than EXT, so there are reasons to use it. From some of the recent Linux kernel patches, it seems some of the most popular Linux file systems, Flash-Friendly File System (F2FS), B-Tree Filesystem (Btrfs), and fourth extended filesystem. This section highlights the differences when using or administering an XFS file system. というのをベースにするとXFSが良い。 一般的にlinuxのブロックサイズは4kなので、xfsのほうが良さそう。 MySQLでページサイズ大きめならext4でもよい。xfsだとブロックサイズが大きくなるにつれて遅くなってる傾向が見える。 Ext4 is the default file system on most Linux distributions for a reason. So for a large video collection, I think I will stick with ext4 still. As for filesystems, not sure I'd bother considering JFS since I believe it may be deprecated out of the kernel soon. But unless you intend to use these features, and know how to use them, they are useless. Bcachefs is the file-system born out of the Linux kernel's block cache code and has been worked on the past several years by. Nhân bản toàn bộ Share. . Mar 14, 2012. Ext4 is the default filesystem in Manjaro at the moment. The check task is involves reading roughly 2000 small files in their entirety and performing some processor intensive tasks on them. NTFS Benchmarks Continuing on from yesterday's Linux 4. The 12,3 % reduction in compilation time with BtrFS is a nice improvement but pales compared to the 58,4 % reduction seen with Ext4 on the same hardware doing the same task. I think in many ways btrfs is the better filesystem, but I seem to have noticed that it takes longer to copy data than on ext4. 11. BTRFS bietet, mal abgesehen von der Möglichkeit einer Inline Deduplizierung, beinahe alle Features von ZFS. But btrfs is not by any stretch the default Linux file system. 3. We may have lengthy talk on ext vs XFS vs f2fs and btrfs vs zfs and there are many more points to be mentioned, but for regular users. Why? Files are the most important bits of data on your hard drive. The only time there were issues was when my RAM sticks went bad and btrfs detected it and put my FS into read-only mode to prevent corruption. EXT4 has entirely different design goals, none of which are data integrity. . xfs 4 threads: 97 MiB/sec. . 4TB HDD formatted as NTFS for backuping all other three hard disks. also XFS has been recommended by many for MySQL/MariaDB for some time. X percent… The more modern filesystems of BTRFS and ZFS not only have data integrity features but also the inline compression pushes the efficiency past 100% in many cases. Ext4, Btrfs, and XFS are three widely used file systems in Linux. ZFS is an advanced filesystem and many of its features focus mainly on reliability. , power failure) could be acceptable. No compression, but compaction. Unfortunately you will probably lose a few files in both cases. It uses a default file system for Linux distribution, including Debian and Ubuntu. EXT4 Vs XFS. If you think that you need. Thanks. both are great choices, but for me the more generally useful choice is BTRFS. #11. Ext4 is built on older technology, so it lacks modern file-system features found in systems like E2FS and BtrFS. A Seagate FireCuda 520 PCIe 4. This is just an additional protection. yield a very fast imaging backup. It takes a second to snapshot, and deletes of a snapshotted tree what takes ext4 26 hours is a few minutes on btrfs. This is because BTRFS is optimized for handling small files, while EXT4 can struggle with multiple small files due to its delayed allocation of. There’s very little difference between EXT4 and XFS, both in total throughput and behavior over time. In the time since I chose ext4 for these systems, btrfs seems to have come a long way, so the choice may be harder today. In the case of the Intel 900p SSD, the XFS results were too fast to accurately measure while EXT4 and F2FS took just two seconds to complete while Btrfs took six seconds. Generally, would go with btrfs. 하지만 리소스 문제나 호환성 등을 생각한다면 EXT4도 포기할 수 없죠. Storage Manager Last updated: Apr 18, 2023 Purpose This article compares the different file systems to help you decide which one to choose when creating a. The NTFS support was powered by FUSE. But. 00GHz (8 Cores) MSI C236A WORKSTATION (MS-7998) v1. 1 fell slightly short of the Linux file-system performance. Just so perfect to roll back for some games and modding. Not only does both file systems feature a more robust data assurances then XFS (the mature fsck for Ext4 and checksums and data. BTRFS VS EXT4 performance in Raid 1. It's not the fastest but not exactly a slouch. Installing and booting with BTRFS has its advantages too. And I don't know if btrfs is right thing for my server. jkool702. When running PostMark, ZFS came out far ahead of the UFS file-systems being more than ten times faster than. To format an xfs filesystem correctly, use the flag -n ftype=1. After a week of testing Btrfs on my laptop, I can conclude that there is a noticeable performance penalty vs Ext4 or XFS. This article provides a detailed comparison of the three file systems to help you decide which one is the best for your needs. Because ext4 can't beat btrfs when it comes to snapshot/delete. If you are using Ext2 or Ext3, you can convert the partition to Ext4. 21 merge window (now known as Linux 5. Ext4 specially without a journal and XFS are both extremely fast. The chart below displays the difference in terms of hard drive space reserved for redundancy. 0 File-System Benchmarks: Btrfs vs. For example it's xfsdump/xfsrestore for xfs, dump/restore for ext2/3/4. Offizieller Beitrag. 6 Comments With FS-Mark there was a very noticeable drop with the XFS file-system with KPTI and Retpoline enabled while EXT4 saw the second largest drop while Btrfs and. Note that everything with LVM is at the block level which has major limitations. Ext4 and XFS are the fastest, as expected. 无论您选择哪个文件系统，都要确保进行适. The NTFS support was powered by FUSE. BTRFS also had somewhat higher latency than EXT4, meaning that it took longer for files to be accessed on the file system. Tenga en cuenta que el uso de inode32 no afecta a los inodos que ya están asignados con números de 64 bits. Agree. EXT4 vs. The reason that Ext4 is often recommended is that it is the most used and trusted filesystem out there on Linux today. I can't make out whether this will remove hot spots when the underlying raid device changes, but a plain rebalance will rewrite the entire file system, so it looks like it will. XFS vs. 7 - EXT4 vs. Tính năng tự khôi phục tập tin. They perform differently for some specific workloads like creating or deleting tenthousands of files / folders. More uniquely, checksumming can detect errors in the data itself. Ext4 seems better suited for lower-spec configurations although it will work just fine on faster ones as well, and performance-wise still better than btrfs in most cases. Here is a look at the Linux 5. My home file share runs zol because I prefer zfs to btrfs and run it at work a lot so I'm much more comfortable with it. creating volumes and mounting them would need to check that option and decide on appropriate mount points. It's a mature filesystem and offers online defragmentation and can. BTRFS is an actual file-system. If you use Debian, Ubuntu, or Fedora Workstation, the installer defaults to ext4. And generally, files that arent compressible, wont be forcefully compressed. Btrfs Benchmarks comparison, here is a wider look at mainline file-systems on the Linux 4. El sistema de archivos es mayor de 2 TiB con inodos de 512 bytes. I haven't benchmarked the performance but as a user on a modern desktop/laptop system with fast ssd, f2fs vs btrfs didn't show any. Btrfs vs Ext4. Running this fio command, I get about 2. Windows has always been terribly slow to update, say, all file permissions in a large directory structure. I did this to all of my partitions, including home. So I moved everything off of it and formatted it into XFS and ate the 0,5% space loss for peace of mind. It can hold up to 1 billion terabytes of data. The Ext4 File System. Ext4 is the fourth version of the Ext (Extended) File System for Linux and is probably the most well-known file system for Linux out there. With not having the time to conduct the usual kernel version vs. Though personally I'd still go with ext4 primarily because despite recognizing some potential benefits of btrfs, I really don't see them as important for how I use my computers. Each of these file systems has its own way of organizing data, merits, and demerits.