InfoScale™ 9.0 SmartIO for Solid-State Drives Solutions Guide - AIX
- Introducing SFHA Solutions SmartIO
- Using the SmartIO feature: use cases
- About SmartIO read caching for applications running on VxVM volumes
- About SmartIO read caching for applications running on VxFS file systems
- About SmartIO caching on SSD devices exported by FSS
- About SmartIO write-back caching for applications running on VxFS file systems
- About multiple SmartIO cache areas for read and write-back caching on VxFS file systems
- About SmartIO caching for Oracle databases on VxFS file systems
- About SmartIO caching for databases on VxVM volumes
- Administering SmartIO
- Enabling or disabling caching for a data object
- Viewing the SmartIO cache statistics
- Troubleshooting and error handling
- Appendix A. Command reference
About SmartIO in the AIX virtualized environment
When you install Veritas InfoScale products in the logical partition (LPAR), you can use SmartIO to cache data onto an SSD or any other supported fast device. The SSD used for the cache can be either a PCIe or SAS device, or an array-based SSD. The supported caching always happens at the LPAR level. In case the applications' I/O workload is running inside the WPARs, the I/O caching still works at the LPAR layer. SmartIO caching is not supported within the WPAR.
Storage Foundation for Oracle RAC is not supported in the WPAR.
If an array-based SSD is used, Live Partition Mobility (LPM) is supported with SmartIO caching. With direct attached devices (PCIe or SAS), LPM is not supported if SmartIO caching is enabled. If you need to perform LPM, you can use manual steps.
See Performing LPM in the SmartIO environment.
Table: AIX: SmartIO support in AIX virtual environments shows how SmartIO can be used in the virtualized environment.
Table: AIX: SmartIO support in AIX virtual environments
Configuration in LPAR: | Configuration in VIOS: | Caching takes place: | VxVM read caching | VxFS read caching | VxFS writeback caching |
---|---|---|---|---|---|
SF | DMP (optional) | On LPAR | Yes | Yes | Yes |
SFHA | DMP (optional) | On LPAR | Yes | Yes | Yes |
SFCFS | DMP (optional) | On LPAR | Yes | Yes | Yes |
SFRAC | DMP (optional) | On LPAR | Yes | Yes | No |
For more information about configuring Veritas InfoScale products in the AIX Virtualization environment, see the Veritas InfoScale Virtualization Guide - AIX.