Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 10 years, 9 months ago. Active 6 years ago. Viewed 37k times. I'm about to format an external hard disk drive HDD. Anything else worth mentioning? Improve this question.
Add a comment. Active Oldest Votes. Any other drive that requires portability and compatibility like you correctly pointed out. The same sequence with the folder was again somewhat faster with the journaled HFS emphasis mine Conclusion I am somewhat surprised to see the above results, as I was kind of convinced that using Non-Journaled was really faster for some operations, but apparently the little cases where it can make a difference, it's overweighted by the "safety" of Journaling.
Since NTFS is a journaling file system, it can auto-repair the internal data structures that are used to keep track of files, so the drive itself remains logically consistent. These differences on a desktop will probably not be visible to you, especially if you already have a fast disk.
For anything with higher capability, XFS tends to be faster. Various benchmarks have concluded that the actual ext4 file system can perform a variety of read-write operations faster than an NTFS partition. For example, ext4 supports delayed allocation directly. The ext2 or second extended file system is a file system for the Linux kernel.
Its successor is ext4. NTFS—the primary file system for recent versions of Windows and Windows Server—provides a full set of features including security descriptors, encryption, disk quotas, and rich metadata, and can be used with Cluster Shared Volumes CSV to provide continuously available volumes that can be accessed simultaneously from ….
You also can download a 2. JFS comes as a patch for several of the 2. At the time of this writing, the latest kernel is 2. We use them in the following section.
You also need both the utilities jfsutils If you use any of the previously named distributions, you do not need to patch the kernel for the JFS code.
You need only to compile the kernel to support JFS either as built-in or as a module. First, download the standard Linux kernel. After you download the kernel, named linux The next step is to get the JFS utilities and the appropriate patch for kernel 2.
At this point, you have all the files needed to patch the kernel. You also have the option to configure JFS as a module. In this case you need only to recompile and re-install kernel modules:. After you compile and install the kernel, you should compile and install the JFS utilities. Save the jfsutils In the following example, we use a spare partition; the next section will demonstrate how to migrate an existing partition into JFS.
If there is unpartitioned space on the disk, you can create a partition using fdisk. After the partition is created, reboot the system to make sure the new partition is able to create the JFS. After the filesystem has been created, you need to mount it. In the previous section, we explained how to create a JFS filesystem using an existing spare partition.
Now, we demonstrate how to migrate your current system from another filesystem, such as ext2, to JFS. We look at how to introduce a JFS partition to your Linux configuration.
In a second step, we make that partition the root filesystem. What partition scheme do you need to create a JFS root partition? The migration process requires an empty partition. This partition needs to be of equal or larger size than the current root partition. The ext2 partition will be duplicated on the JFS partition. Afterward, if you do not wish to keep the ext2 partition, you can reformat it without losing your Linux system.
To make this partition a bootable partition for Linux, you need to reproduce a complete Linux installation. If there is a crash when the write is being logged to the journal, the partial write will have a missing or mismatched checksum and can be ignored at next mount.
Physical journals impose a significant performance penalty because every changed block must be committed twice to storage, but may be acceptable when absolute fault protection is required. A logical journal stores only changes to file metadata in the journal, and trades fault tolerance for substantially better write performance.
A file system with a logical journal still recovers quickly after a crash, but may allow unjournaled file data and journaled metadata to fall out of sync with each other, causing data corruption. In a metadata-only journal, step 3 would not be logged. If step 3 was not done, but steps 1 and 2 are replayed during recovery, the file will be appended with garbage.
Journaling A journaling file system is more reliable when it comes to data storage. Why Use Journaling Updating file systems to reflect changes to files and directories usually requires many separate write operations. For example, deleting a file on a Unix file system involves three steps: Removing its directory entry.
Releasing the inode to the pool of free inodes. Returning all disk blocks to the pool of free disk blocks.
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