Arctera InfoScale™ 9.0 Storage Foundation Administrator's Guide - AIX
- Section I. Introducing Storage Foundation
- Overview of Storage Foundation
- How Dynamic Multi-Pathing works
- How Volume Manager works
- How Volume Manager works with the operating system
- How Volume Manager handles storage management
- Volume layouts in Veritas Volume Manager
- Online relayout
- Volume resynchronization
- Dirty region logging
- Volume snapshots
- FastResync
- How VxVM handles hardware clones or snapshots
- How Veritas File System works
- Section II. Provisioning storage
- Provisioning new storage
- Advanced allocation methods for configuring storage
- Customizing allocation behavior
- Using rules to make volume allocation more efficient
- Understanding persistent attributes
- Customizing disk classes for allocation
- Specifying allocation constraints for vxassist operations with the use clause and the require clause
- Creating volumes of a specific layout
- Customizing allocation behavior
- Creating and mounting VxFS file systems
- Creating a VxFS file system
- Mounting a VxFS file system
- tmplog mount option
- ioerror mount option
- largefiles and nolargefiles mount options
- Resizing a file system
- Monitoring free space
- Extent attributes
- Section III. Administering multi-pathing with DMP
- Administering Dynamic Multi-Pathing
- Discovering and configuring newly added disk devices
- About discovering disks and dynamically adding disk arrays
- How to administer the Device Discovery Layer
- Administering DMP using the vxdmpadm utility
- Gathering and displaying I/O statistics
- Specifying the I/O policy
- Discovering and configuring newly added disk devices
- Dynamic Reconfiguration of devices
- Reconfiguring a LUN online that is under DMP control using the Dynamic Reconfiguration tool
- Manually reconfiguring a LUN online that is under DMP control
- Managing devices
- Displaying disk information
- Changing the disk device naming scheme
- Adding and removing disks
- Event monitoring
- Administering Dynamic Multi-Pathing
- Section IV. Administering Storage Foundation
- Administering sites and remote mirrors
- About sites and remote mirrors
- Fire drill - testing the configuration
- Changing the site name
- Administering the Remote Mirror configuration
- Failure and recovery scenarios
- Administering sites and remote mirrors
- Section V. Optimizing I/O performance
- Section VI. Using Point-in-time copies
- Understanding point-in-time copy methods
- When to use point-in-time copies
- About Storage Foundation point-in-time copy technologies
- Volume-level snapshots
- Storage Checkpoints
- About FileSnaps
- About snapshot file systems
- Administering volume snapshots
- Traditional third-mirror break-off snapshots
- Full-sized instant snapshots
- Creating instant snapshots
- Adding an instant snap DCO and DCO volume
- Controlling instant snapshot synchronization
- Creating instant snapshots
- Cascaded snapshots
- Adding a version 0 DCO and DCO volume
- Administering Storage Checkpoints
- Storage Checkpoint administration
- Administering FileSnaps
- Administering snapshot file systems
- Understanding point-in-time copy methods
- Section VII. Optimizing storage with Storage Foundation
- Understanding storage optimization solutions in Storage Foundation
- Migrating data from thick storage to thin storage
- Maintaining Thin Storage with Thin Reclamation
- Reclamation of storage on thin reclamation arrays
- Identifying thin and thin reclamation LUNs
- InfoScale 4K sector device support solution
- Section VIII. Maximizing storage utilization
- Understanding storage tiering with SmartTier
- Creating and administering volume sets
- Multi-volume file systems
- Features implemented using multi-volume file system (MVFS) support
- Adding a volume to and removing a volume from a multi-volume file system
- Volume encapsulation
- Load balancing
- Administering SmartTier
- About SmartTier
- Placement classes
- Administering placement policies
- File placement policy rules
- Multiple criteria in file placement policy rule statements
- Using SmartTier with solid state disks
- Sub-file relocation
- Administering hot-relocation
- How hot-relocation works
- Moving relocated subdisks
- Compressing files
- About compressing files
- Use cases for compressing files
- Section IX. Administering and protecting storage
- Administering VxVM volumes as paging devices
- Managing volumes and disk groups
- Rules for determining the default disk group
- Moving volumes or disks
- Monitoring and controlling tasks
- Performing online relayout
- Adding a mirror to a volume
- Managing disk groups
- Disk group versions
- Displaying disk group information
- Importing a disk group
- Moving disk groups between systems
- Importing a disk group containing hardware cloned disks
- Handling conflicting configuration copies
- Destroying a disk group
- Backing up and restoring disk group configuration data
- Managing plexes and subdisks
- Decommissioning storage
- Using DMP with a SAN boot disk
- Configuring DMP for SAN booting
- Administering the root volume group (rootvg) under DMP control
- Extending an LVM rootvg that is enabled for DMP
- Quotas
- Using Veritas File System quotas
- File Change Log
- Section X. Reference
- Appendix A. Reverse path name lookup
- Appendix B. Tunable parameters
- Tuning the VxFS file system
- Methods to change Dynamic Multi-Pathing tunable parameters
- Tunable parameters for VxVM
- Methods to change Veritas Volume Manager tunable parameters
- Appendix C. Command reference
- Appendix D. InfoScale event logging
InfoScale log file permissions
The following table lists the parameter values and the corresponding log file permissions that are applicable when those values are set. These values are applicable to all the InfoScale components.
Table: Tunable parameter values, file permissions, and behavior
Tunable parameter value | Log file permissions | Behavior |
---|---|---|
0 (default) | 600 | Update existing file permissions on upgrade. |
1 | 640 | Update existing file permissions on upgrade. |
2 | 644 | Update existing file permissions on upgrade. |
10 | 600 | Do not change existing file permissions on upgrade. |
11 | 640 | Do not change existing file permissions on upgrade. |
12 | 644 | Do not change existing file permissions on upgrade. |
See Setting log file permissions.
Table: VxFS tunable parameter
InfoScale component | Tunable parameter | Located in file |
---|---|---|
VxFS | eo_perm |
|
Use the following command to set this tunable parameter:
# /opt/VRTS/bin/vxtunefs -D eo_perm=<parameter_value>
You can also manually set the parameter value using the following command:
# cat /etc/vx/vxfssystem eo_perm <parameter_value>
After changing the permissions, restart the VxFS services, or reboot the system, for the changes to take effect.
Table: VxVM tunable parameter
InfoScale component | Tunable parameter | Located in file |
---|---|---|
VxVM | log_file_permissions |
|
Use the following command to set this tunable parameter:
# vxtune log_file_permissions <parameter_value>
After changing the permissions, restart the VxVM services, or reboot the system, for the changes to take effect.
Table: VCS tunable parameter
InfoScale component | Tunable parameter | Located in file |
---|---|---|
VCS | VCS_ENABLE_PUBSEC_LOG_PERM |
|
For VCS, you can add the tunable with an appropriate value in the following file:
For example, # export VCS_ENABLE_PUBSEC_LOG_PERM=1.
After changing the permissions, restart the VCS service for the changes to take effect.
Run the following commands sequentially:
# hastop -local
# hastart
Note:
If there are other components under VCS control, for example, VxCPServ and VxFEN, then a VCS restart is required for the log file permissions changes of those components to take effect.
Alternatively, reboot the system for the changes to take effect.
Table: VxCPServ tunable parameter
InfoScale component | Tunable parameter | Located in file |
---|---|---|
VxCPServ | VCS_ENABLE_PUBSEC_LOG_PERM |
|
After changing the permissions, stop and restart the vxcpserv
process for the changes to take effect.
If VxCPServ is configured under VCS control (if there is a VCS service group for VxCPServ), then restart VCS using the following commands sequentially:
# hastop -local
# hastart
Or, use # hastart -onenode, if the CP Server is configured in a single-node VCS cluster.
Alternatively, reboot the system for the changes to take effect.
Table: DBED tunable parameter
InfoScale component | Tunable parameter | Located in file |
---|---|---|
DBED | VCS_ENABLE_PUBSEC_LOG_PERM |
|
For example, # export VCS_ENABLE_PUBSEC_LOG_PERM=1.
After changing the permissions, restart the vxdbd
daemon for the changes to take effect.
To enable the vxdbd
daemon, run the following command:
# /opt/VRTS/bin/sfae_config enable
To disable the vxdbd
daemon, run the following command:
# /opt/VRTS/bin/sfae_config disable
Alternatively, reboot the system for the changes to take effect.
Table: IOM tunable parameter
Component | Tunable parameter | Located in file |
---|---|---|
IOM | log_file_permissions |
|
Use the following CPI command to set this tunable parameter:
# /opt/VRTSsfmh/bin/perl /opt/VRTSsfmh/bin/set_logfiles_permissions.pl --logfile_permission=<parameter_value>
After changing the permissions, restart the IOM services, or reboot the system, for the changes to take effect.