LSI Storage Authority Features
The following tables outline the LSA features for MegaRAID controllers with respect to software features and firmware features.
Important: Feature support varies based on your software version.
| Feature Name | MegaRAID |
|---|---|
| RAID level | RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60 |
| Maximum configurable physical drives | 64 |
| Maximum spans | 8 |
| Maximum virtual drives | 64 |
| Dimmer switch | DS-I and DS-II |
| Maximum media errors | 256 |
| Strip size support | 64 KiB and 256 KiB |
| Maximum VDs per drive group | 16 |
| Multipath | Yes |
| Controller reset support | Yes |
| Feature Name | Description |
|---|---|
| LDAP authentication | Supported network authentication protocol. |
| Server discovery and managing servers | Ability to set up a list of servers to monitor and manage. |
| Server dashboard | Displays the overall summary of the server and devices that are attached to it. |
| Controller dashboard | Interface in which you can perform controller-related actions and can view all the information pertaining to a controller. |
| Simple configuration | Specifies a limited number of settings and has the system select drives for you. |
| Advanced configuration | Allows you to choose additional settings and customize virtual drive creation. |
| Foreign configuration (import/clear) | A RAID configuration that exists on a replacement set of drives that you install in a computer system. |
| Clear configuration | Clears all existing configurations on a selected controller. |
| Update firmware | Update the controller firmware. |
| Online firmware update | Update the firmware while the system is online. |
| Controller Operations | |
| Setting consistency check properties | Set the consistency check properties. |
| Scheduling consistency check | Schedule a consistency check. |
| Setting patrol read properties | Set the patrol read properties. |
| Starting patrol read | Start a patrol read. |
| Stopping patrol read | Stop a patrol read. |
| Managing link speed | Change the link speed between the controller and an expander or between the controller and a drive that is directly connected to the controller |
| Setting adjustable task rates | Set the adjustable task rates. |
| Manage power-save settings | Manage the power-save settings to reduce power consumption of the devices that are connected to a controller. |
| Enable and disable SSD Guard™ | Enable or disable the SSD Guard feature. |
| Enable and disable security | Enable or disable controller security. |
| Change drive security | Change the drive security settings. Drive security settings cannot be changed when EKM is enabled. |
| Discarding preserved cache | Discard the controller data preserved from the virtual drive. This option is only available if pinned cache is present on the controller. |
| Background operations support | Pause, Resume, Abort, Pause All, Resume All, and Abort All features that enhance the functionality where the background operations running on a physical drive or a virtual drive can be paused for some time, and resumed later. |
| Personality management | Allows you to switch between different personality modes that are supported by your firmware. |
| Advanced Software Features | |
| Fast Path | A high-performance I/O accelerator for SSD arrays that are connected to a MegaRAID controller card. |
| SafeStore ™ | Used to secure drive data from unauthorized access or modification resulting from theft, loss, or repurposing of drives. |
| RAID 5 and RAID 6 |
RAID 5 uses disk striping and parity data across all drives (distributed parity) to provide high data throughput, especially for small random access. RAID 6 uses distributed parity, with two independent parity blocks per stripe, and disk striping. A RAID 6 virtual drive can survive the loss of any two drives without losing data. A RAID 6 drive group, which requires a minimum of three drives, is similar to a RAID 5 drive group. Blocks of data and parity information are written across all drives. The parity information recovers the data if one or two drives fail in the drive group. |
| Modify drive group | Allows you to add, remove, or directly change the RAID level. |
| Secure using FDE | Secure a drive using Full-disk encryption (FDE). |
| Virtual Drive Operations | |
| Virtual drive settings and modifying virtual drive properties | Allows you to set and modify virtual drive properties. |
| Start and stop locating a virtual drive | Identify a virtual drive within a disk enclosure. |
| Erasing a virtual drive | Overwrite user-accessible locations or deletes a virtual drive. |
| Initializing a virtual drive | Initialize a virtual drive after completing the configuration process. |
| Starting consistency check on a virtual drive | Start a consistency check on a virtual drive. |
| Deleting a virtual drive | Delete virtual drives on a controller to reuse that space for new virtual drives. |
| Physical Drive Operations | |
| Assign global hot spare | Assign a global hot spare to replace a failed physical drive in a redundant array. |
| Remove a global hot spare | Remove a global hot spare and lists the drive in the Unconfigured Drives section. |
| Assign a dedicated hot spare | Assign dedicated hot spare drives to provide protection to one or more specified drive groups on the controller |
| Remove a dedicated hot spare | Remove a dedicated hot space and lists the drive in the Unconfigured Drives section. |
| Start and stop a locating drive | Identifies a physical drive by making their LEDs blink. |
| Making a drive online and offline | Changes the state of a physical drive. |
| Replacing a drive | Replaces a failing or failed drive. |
| Rebuilding a drive | Automatically rebuilds the data onto a hot spare to prevent data loss if a drive fails. |
| Prepare for removal | Prepares a physical drive for removal by spinning the drive into a power save mode. |
| Erasing a drive | Erases data on non-SEDs (normal HDDs). |
| Instant secure erase | Erases data from encrypted drives. |
| Converting an unconfigured bad drive to an unconfigured good drive | Convert an unconfigured bad drive to an unconfigured good drive. |
| Make an unconfigured good drive | Changes the status of a JBOD drive to an Unconfigured Good drive. |
| Make a JBOD and delete a JBOD | Changes the status of an Unconfigured Good drive to a JBOD drive. |
| Energy Pack Operations | |
| Auto Learn | Calibration operation that the controller performs to determine the condition of the energy pack. |
| Event Logs | |
| Viewing event logs | Views event logs, which contain information about the activity and performance of the server and all of the controller cards that are attached to the server. |