Meridian Data 1 manual Specifications, Management

Configurable RAID stripe size: 64 KB, 128 KB, 256 KB, 512 KB, and 1 MB stripe size per logical drive.

Background task priority tuning: Adjustment of minimum I/O reserved for server use during all background tasks.

Hot spares: Multiple global or dedicated hot-spare drives with revert option.

Maximum LUNs per subsystem: 256 in any combination of RAID levels.

Maximum LUNs per array: 32 logical drives (LUNs). Supports LUN carving by allowing an array to be divided into multiple logical drives. Supports out-of-order logical drive deletion and re-creation.

Max LUNs per Target ID: Up to 256, depending on host side driver and operating system.

LUN Masking and Mapping: Supports multiple hosts.

Background Activities: Media Patrol, background synchronizing, disk array rebuild, Redundancy Check, SMART condition pooling, Online Capacity Expansion (OCE), RAID Level Migration (RLM). Includes priority control, rate control, and watermarking per BGA in disk and NVRAM.

Foreground Activities: Disk array initialization.

Physical Drive Error Recovery: Predictive Data Migration (PDM), replaces un-healthy disk member in array, while maintaining normal array status during the data transition. Bad Sector Mapping, Media Patrol, SMART, Hard/Soft Reset to recover HD from bad status, HD Power-control to recover HD from hung status.

Array Error Recovery: Data recovery from bad sector or failed HD for redundant RAID, RAID 5/6 inconsistent data Prevent (Write Hole Table), Data content Error Prevent (Read/Write Check Table) NVRAM event logging.

SCSI Commands: Supports extensive SCSI command set equivalent to SCSI/FC hard disk drives. Variable sector size (512 byte to 4 KB) to break OS 2TB limitation. 16 byte CDB support for 64-bit LBA addressing.

Management

Supported Operating Systems: Windows 2000 Server, Windows 2003 Server, Linux (Red Hat, SuSE), Macintosh OS X, Solaris.

Management Tools: Astra ES Management GUI via out-of-band Ethernet. OS independent, localized in multiple

languages, SSL Security support. Standard Management Protocols: SNMP

RAID Creation: Automatic, Express, and Advanced configuration support for novice to skilled users.

Management Protocols: Embedded web server and management support—no host agent needed. Ethernet, RJ- 11 serial port, SNMP, SSL, Telnet, Email.

Specifications

Current (maximum): 8 A @ 100 VAC or 4 A @ 240 VAC Current rating with two power cords.

Power Consumption: 78.67 W (not including disk drives).

Power Supply: Dual 400W, 100-240 VAC auto-ranging, 50-60 Hz, dual hot swap and redundant.

Operating Temperature: 5° to 40ûC operational (-40° to 60ûC non-operational)

Relative Humidity: Maximum 95 percent.

Vibration: Random, 0.21 grms, 5-500Hz, 30Mins, X, Y, Z axis.

Dimensions (H x W x D): 8.8 x 44.4 x 56.1 cm (3.5 x 17.5 x 22.1 in)

Net Weight (subsystem only): 22 kg (49 lb) without drives, 28 kg (62 lb) with 12 drives, assuming 0.5 kg (1.1 lb) per drive.

Gross Weight (including carton): 30 kg (66 lb) without drives.

Safety: CE, FCC Class A, cUL.

10 EXCEL MERIDIAN DATA