These options can be supplied to mount command using -o. Update inode access times relative to modify or change time.Īffect how vxfs maintains journals which impacts performance and ability to recover the file systemĪllow set-user-identifier or set-group-identifier bits to take effect.Īttempt to remount an already-mounted filesystem.Īllow non-root user to mount if he is owner of deviceĪllow an ordinary user to mount the filesystem. ![]() Update directory inode access times on this filesystem.Īll directory updates within the filesystem should be done synchronously.Īllow mandatory locks on this filesystem. Interpret character or block special devices on the filesystem Inode access time is controlled by kernel defaults.ĭo not update inode access times on this filesystem Use default options: rw, suid, dev, exec, auto, nouser, async, and relatime.Īll available options can be summarized as below : OptionĪll I/O to the filesystem should be done synchronously.Īll I/O to the filesystem should be done asynchronously. Value defaults in the above example instructs mount command to use parameters defined inbuilt. They also impact on the performance of the file system and impact in recovery in case of failures. Those are file system options that will enhance the user experience of the mount point. This can be supplied to mount command with -F option. ext3, ext4 (Linux FS), vxfs (veritas FS), NFS (Network FS), swap (SWAP FS) are a few types. You need to specify the same FS type which was used at the time of formatting respective volume. Different file system types have different functions and advantages to offer. This is FS type to be considered while mounting the given volume on the specified mount point. This is the second argument to be supplied to mount command when mounting any file system. In HPUX even logical volume numbers of root VG are reserved for system mount points like lvol1 should always be /stand. starts with/and has all directory hierarchy till last expected directory) in this field.ĭirectories like /var, /boot, /tmp, /stand, /usr, /home, /proc, /sys are (and should be) reserved for system mount points. It should always be an absolute path (i.e. This is the name of the directory on which volume should be mounted. dev/vg00/lvol11 /admin vxfs delaylog 0 2 dev/vg00/lvol10 /var/adm/sw vxfs delaylog 0 2 dev/vg00/lvol1 /stand vxfs tranflush 0 1 # See fstab(4) and sam(1M) for further details on configuring devices. Static information about the file systems See below the example of fstab from the HPUX system. Normally HPUX uses LVM as a partition manager hence only logical volumes are found as a volume entry in fstab. This is the first argument to be supplied in mount command while mounting any filesystem. There IP address of the NFS server and its exported share volume name combination is defined as a volume. Lastly, the NFS share is mounted on /tmp/nfs_share directory. Second Last entry, you can see disk sdb is also defined as a volume for /app entry. devpts, sysfsare part of such system-defined file systems. Its a temporary file system volume created and identified by the kernel on the root disk. See LVM legends to get familiarize with naming conventions. They are logical volumes part of the volume group vg00. var, /tmp, etc entries are defined using volume as a logical volume name. Since its unique number, it’s ideal to use UUID in fstab for important file systems! The disk can be identified by UUID or disk name in the kernel. UUID is a universally unique ID assigned to each disk when it’s formatted in the system. In the above example, you can see volume is specified by UUID or logical volume name or disk name or IP:/directory. ![]() dev/mapper/vg_00-lv_swap swap swap defaults 0 0ĭevpts /dev/pts devpts gid=5,mode=620 0 0ġ0.10.2.3:/my_share /tmp/nfs_share nfs defaults 0 0 dev/mapper/vg_00-lv_var /var ext4 defaults 1 2 dev/mapper/vg_00-lv_usr /usr ext4 defaults 1 2 dev/mapper/vg_00-lv_tmp /tmp ext4 defaults 1 2 dev/mapper/vg_00-lv_home /home ext4 defaults 1 2 dev/mapper/vg_00-lv_root / ext4 defaults 1 1 # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # Accessible filesystems, by reference, are maintained under '/dev/disk' # Created by anaconda on Thu Dec 5 15:47:52 2013
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