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. LSA displays the features and operations that are currently available.
Feature Name | MegaRAID |
---|---|
RAID level | RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60 |
Maximum configurable physical drives | 240 |
Maximum spans | 8 |
Maximum virtual drives | 240 |
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 | Updates the controller firmware. |
Online firmware update | Updates the firmware while the system is online. |
Controller Operations | |
Setting consistency check properties | Sets the consistency check properties. |
Scheduling consistency check | Schedules a consistency check. |
Setting patrol read properties | Sets the patrol read properties. |
Starting patrol read | Starts a patrol read. |
Stopping patrol read | Stops a patrol read. |
Managing link speed | Changes 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 | Sets the adjustable task rates. |
Manage power-save settings | Manages the power-save settings to reduce power consumption of the devices that are connected to a controller. |
Enable and disable SSD Guard™ | Enables or disables the SSD Guard feature. |
Enable and disable security | Enables or disables controller security. |
Change drive security | Changes the drive security settings. Drive security settings cannot be changed when EKM is enabled. |
Discarding preserved cache | Discards 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 | |
FastPath | 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 | Identifies a virtual drive within a disk enclosure. |
Erasing a virtual drive | Overwritez user-accessible locations or deletes a virtual drive. |
Initializing a virtual drive | Initializes a virtual drive after completing the configuration process. |
Starting consistency check on a virtual drive | Starts a consistency check on a virtual drive. |
Deleting a virtual drive | Deletes virtual drives on a controller to reuse that space for new virtual drives. |
Physical Drive Operations | |
Assign global hot spare | Assigns a global hot spare to replace a failed physical drive in a redundant array. |
Remove a global hot spare | Removes a global hot spare and lists the drive in the Unconfigured Drives section. |
Assign a dedicated hot spare | Assigns dedicated hot spare drives to provide protection to one or more specified drive groups on the controller |
Remove a dedicated hot spare | Removes 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 | Converts 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. |