RAID
- Multiple arrays configurable with dedicated or global hot spares
- Supports RAID 0, 1 (0+1), 3, 5, 6, 10, 30, 50, 60, and NRAID
- Software management
- IOSmart Technology
- DrvSmart Technology
- SysSmart Technology
Subsystem Components
Redundant, hot-swappable components designed for no single point of failure
- One (1) enhanced 2U enclosure
- Twelve (12) hot-swappable drive trays
- Two (2) chassis ears (with finger grips on S212F-D2840-0030)
- One (1) LED panel (S212F-D2840-0030 only)
- One (1) LCD keypad panel (S212F-D2840-0032 only)
- Two (2) RAID controller modules
- 512MB DDR RAM DIMM module pre-installed on each RAID controller
- Two (2) standard battery backup unit (BBU)
- Two (2) hot-swappable, redundant, 405W power supply units (PSUs)
- Two (2) redundant cooling modules each with two (2) dual-speed fans
Host Interface
- Two (2) FC-4G host channels per controller
- Auto-negotiate FC-AL, point-to-point, or switched fabric
- Concurrent I/O commands
- Tagged command queuing up to 256
- Variable stripe size per logical drive
- Optimization setting for random or sequential I/Os
Drive Interface
- Twelve (12) hot-swappable drive trays that accommodate 1-inch pitch, 3.5-inch SAS/SATA disk drives
- Native Command Queuing (NCQ) support
- Dedicated bandwidth to each connected drive
- Automatic bad sector reassignment
Management
- Firmware-embedded utility via LCD keypad or RS-232C port
- Host-side SES emulation with pass-through to back-end SES emulation
- 10/100 BaseT Ethernet for out-of-band management
- Two (2) COM ports for local access to firmware-embedded utility and UPS connectivity
- Firmware-embedded Java-based RAIDWatch® Manager:
- VT-100 terminal emulation via RS232 serial port
- Telnet access via onboard Ethernet port
- Cross-platform, remote administration with SSL
- Out-of-band access via Ethernet (GUI-onboard)
- Centralized management to monitor and administer multiple RAID units on one screen
- Configuration Client for easy access to the configuration utility screen
- SNMP 2.0 MIBs with get and set commands
SAN Management
Up to 1024 LUNs (if sufficiently large memory is used with the proper settings)
Indicators
- Onboard alarm is triggered when one of the following fails:
- RAID controller module
- Cooling module
- Power supply unit
- Hard drive
- BBU module
- Module status LED indicators :
- Three (3) per LCD keypad panel
- Two (2) per drive tray
- Eleven (11) per RAID controller module
- One (1) per BBU module
- Two (2) per cooling module
- One (1) per PSU
- Module failure alert through I²C bus
- Event notifications sent over email, fax, LAN broadcast, SNMP traps, MSN messenger, ICQ, SMS short messages
- System alerts through Java-based RAIDWatch® Manager
IOSmart
IOSmart allows for the flexible configuration of logical drives, logical volumes and logical partitions and ensures instant RAID availability via background logical drive initialization. Fibre loops' load balancing is provided within the subsystem. The firmware's embedded intelligent algorithms, such as Adaptive Write Policy and Guaranteed Latency I/O, improve sequential write performance and ensure the fast and continuous flow of data.
DrvSmart
The DrvSmart utility provides an easy way to store data while keeping it safe. One of the main DrvSmart functions, Media Scan, retrieves data from degraded or damaged hard drives and handles low quality drives in both the degraded mode and during the rebuild process. Other DrvSmart features include disk cloning, drive roaming, SMART, transparent resetting of non-responsive hard drives, and RAID parity update tracking and recovery.
SysSmart
In addition to RAID protection for the disk drives, Auto Data Protection Mechanisms has introduced. These special SysSmart firmware functions ensure data safety by automatically switching to write-through data caching when abnormal subsystem conditions are detected such as a PSU/cooling module failure, low BBU or UPS battery charge, etc.
By using the firmware to monitor and control the enclosure's dual-speed fans, the fan rotation speed is raised to a higher level when critical conditions are detected, e.g., a PSU or fan failure. Fan speed returns to the lower setting when normal operating status is restored.
The ES S212F-D2840 can be monitored by variety of utilities and approaches. I2C internal serial bus, SAF-TE, and SES are seamlessly integrated into the comprehensive Java-based GUI RAIDWatch Manager. Component status, voltage and temperature readings, and system events are instantly revealed through the manager's graphical interface.
