Storage Administration Guide
1. Overview
Expand section "1. Overview" Collapse section "1. Overview"
1. 1.1. What's New in Red Hat Enterprise Linux 6
I. File Systems
Expand section "I. File Systems" Collapse section "I. File Systems"
1. 2. File System Structure and Maintenance
  Expand section "2. File System Structure and Maintenance" Collapse section "2. File System Structure and Maintenance"
  1. 2.1. Overview of Filesystem Hierarchy Standard (FHS)
    
    Expand section "2.1. Overview of Filesystem Hierarchy Standard (FHS)" Collapse section "2.1. Overview of Filesystem Hierarchy Standard (FHS)"
    
    2.1.1. FHS Organization
    
    Expand section "2.1.1. FHS Organization" Collapse section "2.1.1. FHS Organization"
    
    2.1.1.1. Gathering File System Information
    
    2.1.1.2. The /boot/ Directory
    
    2.1.1.3. The /dev/ Directory
    
    2.1.1.4. The /etc/ Directory
    
    2.1.1.5. The /lib/ Directory
    
    2.1.1.6. The /media/ Directory
    
    2.1.1.7. The /mnt/ Directory
    
    2.1.1.8. The /opt/ Directory
    
    2.1.1.9. The /proc/ Directory
    
    2.1.1.10. The /sbin/ Directory
    
    2.1.1.11. The /srv/ Directory
    
    2.1.1.12. The /sys/ Directory
    
    2.1.1.13. The /usr/ Directory
    
    2.1.1.14. The /var/ Directory
  2. 2.2. Special Red Hat Enterprise Linux File Locations
  3. 2.3. The /proc Virtual File System
  4. 2.4. Discard unused blocks
2. 3. Encrypted File System
  Expand section "3. Encrypted File System" Collapse section "3. Encrypted File System"
  1. 3.1. Mounting a File System as Encrypted
  2. 3.2. Additional Information
3. 4. Btrfs
4. 5. The Ext3 File System
  Expand section "5. The Ext3 File System" Collapse section "5. The Ext3 File System"
5. 6. The Ext4 File System
  Expand section "6. The Ext4 File System" Collapse section "6. The Ext4 File System"
6. 7. Global File System 2
7. 8. The XFS File System
  Expand section "8. The XFS File System" Collapse section "8. The XFS File System"
8. 9. Network File System (NFS)
  Expand section "9. Network File System (NFS)" Collapse section "9. Network File System (NFS)"
  1. 9.1. How NFS Works
    
    Expand section "9.1. How NFS Works" Collapse section "9.1. How NFS Works"
    
    9.1.1. Required Services
  2. 9.2. pNFS
  3. 9.3. NFS Client Configuration
    
    Expand section "9.3. NFS Client Configuration" Collapse section "9.3. NFS Client Configuration"
    
    9.3.1. Mounting NFS File Systems using /etc/fstab
  4. 9.4. autofs
    
    Expand section "9.4. autofs" Collapse section "9.4. autofs"
    
    9.4.1. Improvements in autofs Version 5 over Version 4
    
    9.4.2. autofs Configuration
    
    9.4.3. Overriding or Augmenting Site Configuration Files
    
    9.4.4. Using LDAP to Store Automounter Maps
  5. 9.5. Common NFS Mount Options
  6. 9.6. Starting and Stopping NFS
  7. 9.7. NFS Server Configuration
    
    Expand section "9.7. NFS Server Configuration" Collapse section "9.7. NFS Server Configuration"
    
    9.7.1. The /etc/exports Configuration File
    
    9.7.2. The exportfs Command
    
    Expand section "9.7.2. The exportfs Command" Collapse section "9.7.2. The exportfs Command"
    
    9.7.2.1. Using exportfs with NFSv4
    
    9.7.3. Running NFS Behind a Firewall
    
    Expand section "9.7.3. Running NFS Behind a Firewall" Collapse section "9.7.3. Running NFS Behind a Firewall"
    
    9.7.3.1. Discovering NFS exports
    
    9.7.4. Hostname Formats
    
    9.7.5. NFS over RDMA
  8. 9.8. Securing NFS
    
    Expand section "9.8. Securing NFS" Collapse section "9.8. Securing NFS"
    
    9.8.1. NFS Security with AUTH_SYS and export controls
    
    9.8.2. NFS security with AUTH_GSS
    
    Expand section "9.8.2. NFS security with AUTH_GSS" Collapse section "9.8.2. NFS security with AUTH_GSS"
    
    9.8.2.1. NFS security with NFSv4
    
    9.8.3. File Permissions
  9. 9.9. NFS and rpcbind
    
    Expand section "9.9. NFS and rpcbind" Collapse section "9.9. NFS and rpcbind"
    
    9.9.1. Troubleshooting NFS and rpcbind
  10. 9.10. References
9. 10. FS-Cache
  Expand section "10. FS-Cache" Collapse section "10. FS-Cache"
  1. 10.1. Performance Guarantee
  2. 10.2. Setting Up a Cache
  3. 10.3. Using the Cache With NFS
    
    Expand section "10.3. Using the Cache With NFS" Collapse section "10.3. Using the Cache With NFS"
    
    10.3.1. Cache Sharing
    
    10.3.2. Cache Limitations With NFS
  4. 10.4. Setting Cache Cull Limits
  5. 10.5. Statistical Information
  6. 10.6. References
II. Storage Administration
Expand section "II. Storage Administration" Collapse section "II. Storage Administration"
1. 11. Storage Considerations During Installation
  Expand section "11. Storage Considerations During Installation" Collapse section "11. Storage Considerations During Installation"
2. 12. File System Check
  Expand section "12. File System Check" Collapse section "12. File System Check"
  1. 12.1. Best Practices for fsck
  2. 12.2. Filesystem-Specific Information for fsck
    
    Expand section "12.2. Filesystem-Specific Information for fsck" Collapse section "12.2. Filesystem-Specific Information for fsck"
    
    12.2.1. ext2, ext3, and ext4
    
    12.2.2. XFS
    
    12.2.3. Btrfs
3. 13. Partitions
  Expand section "13. Partitions" Collapse section "13. Partitions"
  1. 13.1. Viewing the Partition Table
  2. 13.2. Creating a Partition
    
    Expand section "13.2. Creating a Partition" Collapse section "13.2. Creating a Partition"
    
    13.2.1. Making the Partition
    
    13.2.2. Formatting and Labeling the Partition
    
    13.2.3. Add to /etc/fstab
  3. 13.3. Removing a Partition
  4. 13.4. Resizing a Partition
4. 14. LVM (Logical Volume Manager)
  Expand section "14. LVM (Logical Volume Manager)" Collapse section "14. LVM (Logical Volume Manager)"
  1. 14.1. What is LVM2?
  2. 14.2. Using system-config-lvm
    
    Expand section "14.2. Using system-config-lvm" Collapse section "14.2. Using system-config-lvm"
    
    14.2.1. Utilizing Uninitialized Entities
    
    14.2.2. Adding Unallocated Volumes to a Volume Group
    
    14.2.3. Migrating Extents
    
    14.2.4. Adding a New Hard Disk Using LVM
    
    14.2.5. Adding a New Volume Group
    
    14.2.6. Extending a Volume Group
    
    14.2.7. Editing a Logical Volume
  3. 14.3. LVM References
5. 15. Swap Space
  Expand section "15. Swap Space" Collapse section "15. Swap Space"
  1. 15.1. Adding Swap Space
    
    Expand section "15.1. Adding Swap Space" Collapse section "15.1. Adding Swap Space"
    
    15.1.1. Extending Swap on an LVM2 Logical Volume
    
    15.1.2. Creating an LVM2 Logical Volume for Swap
    
    15.1.3. Creating a Swap File
  2. 15.2. Removing Swap Space
    
    Expand section "15.2. Removing Swap Space" Collapse section "15.2. Removing Swap Space"
    
    15.2.1. Reducing Swap on an LVM2 Logical Volume
    
    15.2.2. Removing an LVM2 Logical Volume for Swap
    
    15.2.3. Removing a Swap File
  3. 15.3. Moving Swap Space
6. 16. Disk Quotas
  Expand section "16. Disk Quotas" Collapse section "16. Disk Quotas"
  1. 16.1. Configuring Disk Quotas
    
    Expand section "16.1. Configuring Disk Quotas" Collapse section "16.1. Configuring Disk Quotas"
    
    16.1.1. Enabling Quotas
    
    16.1.2. Remounting the File Systems
    
    16.1.3. Creating the Quota Database Files
    
    16.1.4. Assigning Quotas per User
    
    16.1.5. Assigning Quotas per Group
    
    16.1.6. Setting the Grace Period for Soft Limits
  2. 16.2. Managing Disk Quotas
    
    Expand section "16.2. Managing Disk Quotas" Collapse section "16.2. Managing Disk Quotas"
    
    16.2.1. Enabling and Disabling
    
    16.2.2. Reporting on Disk Quotas
    
    16.2.3. Keeping Quotas Accurate
  3. 16.3. Disk Quota References
7. 17. Redundant Array of Independent Disks (RAID)
  Expand section "17. Redundant Array of Independent Disks (RAID)" Collapse section "17. Redundant Array of Independent Disks (RAID)"
8. 18. Using the mount Command
  Expand section "18. Using the mount Command" Collapse section "18. Using the mount Command"
  1. 18.1. Listing Currently Mounted File Systems
    
    Expand section "18.1. Listing Currently Mounted File Systems" Collapse section "18.1. Listing Currently Mounted File Systems"
    
    18.1.1. Specifying the File System Type
  2. 18.2. Mounting a File System
    
    Expand section "18.2. Mounting a File System" Collapse section "18.2. Mounting a File System"
    
    18.2.1. Specifying the File System Type
    
    18.2.2. Specifying the Mount Options
    
    18.2.3. Sharing Mounts
    
    18.2.4. Moving a Mount Point
  3. 18.3. Unmounting a File System
  4. 18.4. mount Command References
    
    Expand section "18.4. mount Command References" Collapse section "18.4. mount Command References"
    
    18.4.1. Manual Page Documentation
    
    18.4.2. Useful Websites
9. 19. The volume_key function
  Expand section "19. The volume_key function" Collapse section "19. The volume_key function"
  1. 19.1. Commands
  2. 19.2. Using volume_key as an individual user
  3. 19.3. Using volume_key in a larger organization
    
    Expand section "19.3. Using volume_key in a larger organization" Collapse section "19.3. Using volume_key in a larger organization"
    
    19.3.1. Preparation for saving encryption keys
    
    19.3.2. Saving encryption keys
    
    19.3.3. Restoring access to a volume
    
    19.3.4. Setting up emergency passphrases
  4. 19.4. volume_key References
10. 20. Access Control Lists
  Expand section "20. Access Control Lists" Collapse section "20. Access Control Lists"
  1. 20.1. Mounting File Systems
    
    Expand section "20.1. Mounting File Systems" Collapse section "20.1. Mounting File Systems"
    
    20.1.1. NFS
  2. 20.2. Setting Access ACLs
  3. 20.3. Setting Default ACLs
  4. 20.4. Retrieving ACLs
  5. 20.5. Archiving File Systems With ACLs
  6. 20.6. Compatibility with Older Systems
  7. 20.7. ACL References
11. 21. Solid-State Disk Deployment Guidelines
  Expand section "21. Solid-State Disk Deployment Guidelines" Collapse section "21. Solid-State Disk Deployment Guidelines"
  1. 21.1. Deployment Considerations
  2. 21.2. Tuning Considerations
12. 22. Write Barriers
  Expand section "22. Write Barriers" Collapse section "22. Write Barriers"
13. 23. Storage I/O Alignment and Size
  Expand section "23. Storage I/O Alignment and Size" Collapse section "23. Storage I/O Alignment and Size"
14. 24. Setting Up A Remote Diskless System
  Expand section "24. Setting Up A Remote Diskless System" Collapse section "24. Setting Up A Remote Diskless System"
15. 25. Device Mapper Multipathing and Virtual Storage
  Expand section "25. Device Mapper Multipathing and Virtual Storage" Collapse section "25. Device Mapper Multipathing and Virtual Storage"
  1. 25.1. Virtual Storage
  2. 25.2. DM-Multipath
III. Online Storage
Expand section "III. Online Storage" Collapse section "III. Online Storage"
1. 26. Fibre Channel
  Expand section "26. Fibre Channel" Collapse section "26. Fibre Channel"
  1. 26.1. Fibre Channel API
  2. 26.2. Native Fibre Channel Drivers and Capabilities
2. 27. Set up an iSCSI Target and Initiator
  Expand section "27. Set up an iSCSI Target and Initiator" Collapse section "27. Set up an iSCSI Target and Initiator"
  1. 27.1. iSCSI Target Creation
  2. 27.2. iSCSI Initiator Creation
3. 28. Persistent Naming
  Expand section "28. Persistent Naming" Collapse section "28. Persistent Naming"
  1. 28.1. WWID
  2. 28.2. UUID and Other Persistent Identifiers
4. 29. Removing a Storage Device
5. 30. Removing a Path to a Storage Device
6. 31. Adding a Storage Device or Path
7. 32. Configuring a Fibre-Channel Over Ethernet Interface
  Expand section "32. Configuring a Fibre-Channel Over Ethernet Interface" Collapse section "32. Configuring a Fibre-Channel Over Ethernet Interface"
  1. 32.1. Fibre-Channel over Ethernet (FCoE) Target Set up
8. 33. Configuring an FCoE Interface to Automatically Mount at Boot
9. 34. Scanning Storage Interconnects
10. 35. Configuring iSCSI Offload and Interface Binding
  Expand section "35. Configuring iSCSI Offload and Interface Binding" Collapse section "35. Configuring iSCSI Offload and Interface Binding"
11. 36. Scanning iSCSI Targets with Multiple LUNs or Portals
12. 37. Resizing an Online Logical Unit
  Expand section "37. Resizing an Online Logical Unit" Collapse section "37. Resizing an Online Logical Unit"
  1. 37.1. Resizing Fibre Channel Logical Units
  2. 37.2. Resizing an iSCSI Logical Unit
  3. 37.3. Updating the Size of Your Multipath Device
  4. 37.4. Changing the Read/Write State of an Online Logical Unit
    
    Expand section "37.4. Changing the Read/Write State of an Online Logical Unit" Collapse section "37.4. Changing the Read/Write State of an Online Logical Unit"
    
    37.4.1. Rescanning logical units
    
    37.4.2. Updating the R/W state of a multipath device
    
    37.4.3. Documentation
13. 38. Adding/Removing a Logical Unit Through rescan-scsi-bus.sh
14. 39. Modifying Link Loss Behavior
  Expand section "39. Modifying Link Loss Behavior" Collapse section "39. Modifying Link Loss Behavior"
  1. 39.1. Fibre Channel
  2. 39.2. iSCSI Settings With dm-multipath
    
    Expand section "39.2. iSCSI Settings With dm-multipath" Collapse section "39.2. iSCSI Settings With dm-multipath"
    
    39.2.1. NOP-Out Interval/Timeout
    
    39.2.2. replacement_timeout
  3. 39.3. iSCSI Root
15. 40. Controlling the SCSI Command Timer and Device Status
16. 41. Online Storage Configuration Troubleshooting
A. Revision History
Legal Notice

Red Hat Training

A Red Hat training course is available for Red Hat Enterprise Linux

3.2. Additional Information

For more information on eCryptfs and its mount options, refer to man ecryptfs (provided by the ecryptfs-utils package). The following Kernel document (provided by the kernel-doc package) also provides additional information on eCryptfs:

/usr/share/doc/kernel-doc-version/Documentation/filesystems/ecryptfs.txt

Select Your Language

Infrastructure and Management

Cloud Computing

Storage

Runtimes

Integration and Automation

Red Hat Training

3.2. Additional Information