Should I use Noatime?

Should I use Noatime?

If the filesystem is only used for database work then it should be safe to use noatime and that will reduce writes to the filesystem. At the end of the day noatime should not be used without due consideration and how much difference it makes can only be determine by benchmarking under a particular workload.

What does Noatime mean in fstab?

The noatime option fully disables writing file access times to the drive every time you read a file. This works well for almost all applications, except for those that need to know if a file has been read since the last time it was modified.

What is Noatime option?

The noatime option turns off access time recording regardless of dfratime or nodfratime. If noatime is specified, the file system will ignore access time (atime) updates on files, except when they coincide with updates to the ctime or mtime.

How do I add Noatime to fstab?

A. 23.4 Linux /etc/fstab File

  1. Open the /etc/fstab file in a text editor.
  2. Modify the entry for the NSS volume by adding noatime or nodiratime as options. For example, type volname vol_mountpoint nssvol noauto,rw,name=volname,noatime 0 0.
  3. Save the file.
  4. Reboot the server to apply the changes.

Should I use Noatime on SSD?

Mounting SSD filesystems The performance of SSDs is also influenced by filesystem mounting options: Add the “noatime” (or the default “relatime”) mount option in /etc/fstab, to disable (or significantly reduce) disk writes whenever a file is read. This improves filesystem read performance for both SSDs and HDDs.

Does Noatime imply Nodiratime?

First, commenter Mike Lowe pointed out that noatime implies nodiratime. If you have an application that cares about file atimes you might gain some performance with using just nodiratime instead of noatime to cover the directories but not the files.

What does Nosuid mean?

The nosuid mount option specifies that the filesystem cannot contain set userid files.

What is Nofail fstab?

The nofail option can be used to stop the boot process from trying to mount and fsck device if the hardware is not present: You can set nofail in /etc/fstab like the example below. /dev/vg_data/log_data /var/log/data ext3 defaults,nofail 1 2.

What is the difference between UUID and Partuuid?

UUID is a filesystem-level UUID, which is retrieved from the filesystem metadata inside the partition. It can only be read if the filesystem type is known and readable. PARTUUID is a partition-table-level UUID for the partition, a standard feature for all partitions on GPT-partitioned disks.

How do I check my Partuuid?

If you want to know the PARTUUD, give command cat /etc/fstab. Now you change cmdline. txt again form root=/dev/mmcblk0p2 to root=PARTUUID=67a4b35c-02.

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