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System Administration Guide: Devices and File Systems Oracle Solaris 10 8/11 Information Library |
1. Managing Removable Media (Overview)
2. Managing Removable Media (Tasks)
3. Accessing Removable Media (Tasks)
4. Writing CDs and DVDs (Tasks)
5. Managing Devices (Overview/Tasks)
6. Dynamically Configuring Devices (Tasks)
7. Using USB Devices (Overview)
9. Using InfiniBand Devices (Overview/Tasks)
11. Administering Disks (Tasks)
12. SPARC: Setting Up Disks (Tasks)
13. x86: Setting Up Disks (Tasks)
14. Configuring Oracle Solaris iSCSI Targets and Initiators (Tasks)
15. The format Utility (Reference)
16. Managing File Systems (Overview)
17. Creating and Mounting File Systems (Tasks)
18. Using The CacheFS File System (Tasks)
19. Configuring Additional Swap Space (Tasks)
Swap Space and the TMPFS File System
Swap Space and Dynamic Reconfiguration
Configuring Swap Space in a SAN Environment
How Do I Know If I Need More Swap Space?
Swap Areas and the /etc/vfstab File
Allocating Swap Space for UFS-Based Systems
Allocating Swap Space for ZFS-Based Systems
Creating a Swap File in a UFS Root Environment
How to Create a Swap File and Make It Available in UFS Root Environment
Adding or Changing Swap Space in an Oracle Solaris ZFS Root Environment
How to Add Swap Space in an Oracle Solaris ZFS Root Environment
How to Remove Unneeded Swap Space in UFS Root Environment
How to Remove a Swap Volume in a ZFS Root Environment
20. Checking UFS File System Consistency (Tasks)
21. UFS File System (Reference)
22. Backing Up and Restoring UFS File Systems (Overview)
23. Backing Up UFS Files and File Systems (Tasks)
24. Using UFS Snapshots (Tasks)
25. Restoring UFS Files and File Systems (Tasks)
26. UFS Backup and Restore Commands (Reference)
27. Copying Files and File Systems (Tasks)
The following section describes how to add or change swap space in a ZFS root environment. See the previous sections to determine if your system or applications need additional swap space.
A swap volume cannot be removed if it is in use. You can tell if the current swap volume is in use by comparing the blocks identified in the blocks column and blocks identified in the free column. If the blocks in the two columns are equal, the swap area is not busy. For example:
# swap -l swapfile dev swaplo blocks free /dev/zvol/dsk/rpool/swap 256,1 16 1058800 1058800
For example:
# zfs get volsize rpool/swap NAME PROPERTY VALUE SOURCE rpool/swap volsize 517M - # zfs set volsize=2g rpool/swap # zfs get volsize rpool/swap NAME PROPERTY VALUE SOURCE rpool/swap volsize 2G -
For example:
# zfs create -V 2G rpool/swap2
For example:
# swap -a /dev/zvol/dsk/rpool/swap2 # swap -l swapfile dev swaplo blocks free /dev/zvol/dsk/rpool/swap 256,1 16 1058800 1058800 /dev/zvol/dsk/rpool/swap2 256,3 16 4194288 4194288