Lenovo ThinkSystem 930-8e 4GB Flash PCIe 12Gb RAID Adapter Card 7Y37A01087

The ThinkSystem RAID 930-8e External RAID Adapter is a high-performance 12 Gbps SAS RAID-on-chip (ROC) adapter for connectivity to external disk enclosures. The adapter comes standard with 4 GB of cache, supports RAID levels 0, 1, 10, 5, 50, 6 and 60, and includes an extensive list of RAS and management features.

Features

The ThinkSystem RAID 930-8e adapter has the following standard features:

MegaRAID FastPath SSD performance acceleration

• MegaRAID FastPath software provides high-performance I/O acceleration for SSD-based virtual drives by using a low latency I/O path to increase the maximum I/O per second (IOPS) capability of the controller. This feature boosts the performance of applications with a highly random data storage access pattern, such as transactional databases.

MegaRAID flash cache protection

• MegaRAID flash cache protection uses NAND flash memory, which is powered by a CacheVault Power Module supercapacitor, to protect data that is stored in the controller cache. This module eliminates the need for a lithium-ion battery, which is commonly used to protect DRAM cache memory on PCI RAID controllers. To avoid the possibility of data loss or corruption during a power or server failure, flash cache protection technology transfers the contents of the DRAM cache to NAND flash using power from the offload power module. After the power is restored to the RAID controller, the content of the NAND flash is transferred back to the DRAM, which is flushed to disk.

Auto-resume on array rebuild or array reconstruction after the loss of system power

• Auto-resume uses non-volatile RAM (NVRAM) to save the rebuild progress during a host reboot or power failure to automatically resume from the last checkpoint. Auto-resume ensures that data integrity is maintained throughout the process. The card supports a number of features that can be implemented without rebooting the server. Applications, such as email and web server, benefit from avoiding downtime during the transition.

Online Capacity Expansion

• Online Capacity Expansion (OCE) allows the capacity of a virtual disk to be expanded by adding new physical disks or making use of unused space on existing disks, without requiring a reboot.

Online RAID Level Migration

• Online RAID Level Migration (RLM), which is also known as logical drive migration, can migrate a virtual disk from any RAID level to any other RAID level without requiring a reboot. System availability and application functionality remain unaffected.

Fast initialization for quick array setup

• Fast initialization quickly writes zeros to the first and last sectors of the virtual drive. This feature allows you to immediately start writing data to the virtual drive while the initialization is running in the background.

Consistency check for background data integrity

• Consistency check verifies that all stripes in a virtual disk with a redundant RAID level are consistent. 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.

Extensive online configuration options and advanced monitoring and event notification

• Management tools provide convenience for the configuration of logical volumes and alerting when errors have occurred or are about to occur.

Compatibility

• ST50 (7Y48 / 7Y50)
• ST250 (7Y45 / 7Y46)
• SR250 (7Y52 / 7Y51)
• ST550 (7X09 / 7X10)
• SR530 (7X07 / 7X08)
• SR550 (7X03 / 7X04)
• SR570 (7Y02 / 7Y03)
• SR590 (7X98 / 7X99)
• SR630 (7X01 / 7X02)
• SR650 (7X05 / 7X06)
• SR850 (7X18 / 7X19)
• SR850P (7D2F / 2D2G)
• SR860 (7X69 / 7X70)