# LSI Storage Authority Feature Comparison Matrix

The following tables outline the LSA feature differences for MegaRAID, iMegaRAID, Software RAID, and Initiator-Target controllers with respect to software features and firmware features. The tables also indicate the supported and unsupported features for a specific controller.

Some of the features might not be supported on all the controllers. Refer to these feature comparison matrices for information on the features that are supported on your controller.

Table 1. Firmware Feature Comparison Matrix
Feature Name | MegaRAID | iMegaRAID | Software RAID | IntegratedRAID | Initiator-Target
--- | --- | --- | --- | --- | ---
RAID level | RAID 0, RAID 1, RAID 5, RAID 6, RAID 00, RAID 10, RAID 50, RAID 60, RAID 1E, and Spanned RAID 1E (PRL-11) | RAID 0, RAID 1, RAID 5, RAID 10, RAID 50, and RAID 1E | RAID 0, RAID 1, RAID 5, and RAID 10 | RAID 0, RAID 1, RAID 10, and RAID 1E | No
Maximum Configurable physical drives | 240 | iMegaRAID 32. The rest of the drives can be used as JBODs. | 8 | 12 configurable physical drives and two Hot Spares | 1024
Maximum spans | 8 | 8 | 4 | No | No
Maximum virtual drives | 240 | 32 | 8 | 2 | No
Dimmer Switch | DS-I and DS-II | No | No | No | No
Maximum media errors | 256 | 102 | 256 | No | No
Drive-mixing support | Yes | Yes | Yes | No | No
Strip size support | 64 KB, 128 KB, 256 KB, 512 KB, and 1024 KB | 64 KB | 64 KB | 64 KB | No
Maximum VDs per Drive Group | 64 | 16 | 8 | 1 | No
Multipath | Yes | Yes | No | Yes | Yes
Controller reset support | Yes | Yes | No | No | No

Table 2. Software Feature Comparison Matrix
Feature Name | MegaRAID | iMegaRAID | Software RAID | IntegratedRAID | Initiator-Target
--- | --- | --- | --- | --- | ---
LDAP authentication | Yes | Yes | Yes | Yes | Yes
Server discovery and managing servers | Yes | Yes | Yes | Yes | Yes
Server dashboard | Yes | Yes | Yes | Yes | Yes
Controller dashboard | Yes | Yes | Yes | Yes | Yes
Simple configuration | Yes | Yes | Yes | Yes | No
Advanced configuration | Yes | Yes | Yes | Yes | No
CacheCade ® – SSD Caching configuration | No | No | No | No | No
Foreign configuration (import/clear) | Yes | Yes | No | Yes | No
Clear configuration | Yes | Yes | Yes | Yes | No
Update firmware | Yes | Yes | No | Yes | Yes
Online Firmware Update | Yes | Yes | No | Yes | No
Controller Operations
Setting consistency check properties | Yes | Yes | Yes | Yes | No
Scheduling consistency check | Yes | Yes | No | No | No
Setting patrol read properties | Yes | Yes | Yes | No | No
Starting patrol read | Yes | Yes | Yes | No | No
Stopping patrol read | Yes | Yes | Yes | No | No
Managing link speed | Yes | Yes | No | No | No
Setting adjustable task rates | Yes | Yes | Yes | No | No
Enable and disable alarm | Yes | Yes | No | No | No
Silence alarm | Yes | Yes | No | No | No
Manage power-save settings | Yes | Yes | No | No | No
Enable and disable SSD Guard ™ | Yes | Yes | No | No | No
Enable and disable security | Yes | Yes | No | No | No
Change drive security | Yes | Yes | No | No | No
Discarding preserved cache | Yes | No | No | No | No
Downloading TTY log | Yes | Yes | No | No | No
Background operations | Yes | Yes | Yes | No | No
Personality management | Yes | No | No | No | No
Advanced Software Features
Fast Path | Yes | Yes | No | No | No
CacheCade SSD | No | No | No | No | No
CacheCade Pro | Yes | No | No | No | No
SafeStore ™ | Yes | Yes | No | No | No
RAID 5 and RAID 6 | Yes | Yes | No | No | No
Modify drive group | Yes | Yes | No | No | No
Secure using FDE | Yes | Yes | No | No | No
Disable data protection | Yes | Yes | Yes | Yes | No
Hide and unhide | Yes | Yes | No | No | No
Virtual Drive Operations
Virtual drive settings and modifying virtual drive properties | Yes | Yes | Yes | Yes | No
Start and stop locating a virtual drive | Yes | Yes | Yes | Yes | No
Erasing a virtual drive | Yes | Yes | No | No | No
Initializing a virtual drive | Yes | Yes | Yes | Yes | No
Starting consistency check on a virtual drive | Yes | Yes | Yes | No | No
Expanding the online capacity of a virtual drive | Yes | Yes | No | No | No
Deleting a virtual drive | Yes | Yes | Yes | Yes | No
Hide and unhide | Yes | Yes | No | No | No
Physical Drive Operations
Assign global hot spare | Yes | Yes | Yes | Yes | No
Remove a global hot spare | Yes | Yes | Yes | Yes | No
Assign a dedicated hot spare | Yes | Yes | No | No | No
Remove a dedicated hot spare | Yes | Yes | No | No | No
Start and stop a locating drive | Yes | Yes | Yes | Yes | Yes
Making a drive online and offline | Yes | Yes | Yes | Yes | No
Replacing a drive | Yes | Yes | No | No | No
Rebuilding a drive | Yes | Yes | Yes | Yes | No
Prepare for removal | Yes | Yes | No | No | No
Erasing a drive | Yes | Yes | No | No | No
Instant secure erase | Yes | Yes | No | No | No
Converting an unconfigured bad drive to an unconfigured good drive | Yes | Yes | No | No | No
Make an unconfigured good drive | Yes | Yes | No | No | No
Make a JBOD and delete a JBOD | Yes | Yes | No | No | No
Energy Pack Operations
Learn cycle | Yes | No | No | No | No
Event Logs
Viewing event logs | Yes | Yes | Yes | Yes | Yes

1 Limited properties can be set. The Reconstruction Rate option is not supported.
2 Energy pack is not supported.
3 Unsupported background operations are Reconstruction, Copyback, and PD Format. Supported background operations are Rebuild, Full Initialization, Fast Initialization, Check Consistency, Patrol Read, and BGI for RAID 5 and RAID 6. Pause and Resume are not supported for the Patrol Read operation.
4 RAID 6 is not supported.
5 Cached IO and Write Back options are not supported.
6 Cached IO and Write Back options are not supported.
7 All the settings except the virtual drive name in the virtual settings window are disabled. After you create the virtual drive, you can only change the disk cache policy.