RAID 10, 50 and 60 drive groups do not support Online Capacity Expansion and Online RAID Level Migration.Newsletter Signup About Lenovo Press Support home Data Center Systems home page.
For an online comparison of ThinkSystem controllers, see the following. ![]() Lsi Megaraid Management Software Upgrade Is RequiredA cache upgrade is required for the 720ix AnyRAID adapter operations, and it must be purchased together with the controller. This technology secures data on a disk drive from any unauthorized access or modification resulting from theft, loss, or repurposing of drives. Instant secure erase permanently removes data when repurposing or decommissioning SEDs. SafeStore local key management provides the necessary management and protection of SEDs by using a simple pass phrase, security key identifier, and security key file that can be set and applied to all SEDs that are assigned to a RAID adapter. This feature removes the complexity of managing each SEDs unique encryption key, and it relieves the administrator of most of the daily tasks of securing data. This feature boosts the performance of applications with a highly random data storage access pattern, such as transactional databases. Lsi Megaraid Management Software Software Enables SSDsThe software enables SSDs to be configured as a dedicated pool of controller cache to help maximize the IO performance for transaction-intensive applications, such as databases and web serving. CacheCade software tracks data storage access patterns and identifies the most frequently accessed data. The hot data is then automatically stored on the solid-state storage devices that are assigned as a dedicated cache pool on a RAID controller. The consistency check mirrors data when an inconsistent stripe is detected for RAID 1 and re-creates the parity from the peer disks for RAID 5 or RAID 6. Consistency checks can be scheduled to take place periodically. The service issues a series of verify commands, and if a bad block is discovered, the cards firmware uses RAID algorithms to re-create the missing data and remap the sector to a good sector. The task is interruptible based on controller activity and host operations. The firmware also provides an interface where the patrol read task can be initiated, set up for continuous operation, and terminated from a management application. Patrol read can be activated by a manual command or automatically. System availability and application functionality remain unaffected. A global hot spare allows any physical drive to be designated as a hot spare. A dedicated hot spare allows the user to assign a hot spare drive to a particular array of the same drive type. The RAID drive group continues to handle requests while the rebuild occurs.
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