Technical Specifications

Specifications

Interface bus PCI Drive interface type Ultra2 SCSI Form Factor Full-size Data width 64-bit Buffer size 32000KB (onboard) Modes supported RAID 0, RAID 1, RAID 5 Adapter bus data 64 / 32-bit PCI Supported data transfer rates 20MBps, 40MBps, 80MBps Adapter features Logical Drive Migration (LDM) Supported software IBM OS/2 Warp Server Advanced 4.0 SMP Feature, Novell IntranetWare 1.0, Microsoft Windows NT 4.0 Server, Windows 2000, SCO Open Server 5.0.4, SCO Unixware 7.0 Other information - Three channels support up to 45 disk drives- LVDS support for up to 80MBps and cable lengths up to 25M - EDO Cache - I2O support - Hot-swap PCI support - Year 2000 ready - 80MHz RISC processor - ServeRAID software contained on CD-ROM - Bootable CD-ROM support - It can transfer data up to 264MBps over the PCI bus when installed in servers supporting 64-bit PCI slots. - Contains two industry standard .8mm VHDCI connectors for attachment of external SCSI enclosures. - The third channel can be used to support an additional data storage unit. - An optional 32MB of battery-backup cache is available to provide additional levels of high-availability to protect data stored in write-back cache in the event of a power outage in the server or a problem that occurs to the adapter itself. - One internal, industry standard, 68-pin connector - Three RAID channels - SPCI connector for optional 32MB Battery-Backup Cache (included)   ServeRAID functions: - Changing from RAID 0 to RAID 5, or vice versa, without requiring the data to be restored from a backup source. - Expanding the array by adding up to three physical drives at a time. - Logical drive size can be increased or left unchanged. - If left unchanged, additional logical drives can be defined. - Changing the RAID level on-the-fly from RAID 0 to RAID 5 by adding a drive, or RAID 5 to RAID 0 by removing a drive. - Changing a two disk drive RAID 1 to RAID 5, on-the-fly, by adding one physical drive. - Concurrent I/O support allowing logical drives to be accessed by users during LDM. - Degraded mode support allowing a logical drive in critical mode not to affect LDM if already in progress, or preventing LDM start if the drive is in critical model prior to start of LDM. - Power failure recovery allowing LDM activity recovery even after a power disruption. - Hot-swap rebuild automatically starts rebuilding a replaced disk drive without operator intervention. - Data scrubbing periodically scans disk services and automatically repairs bad sectors on the disk array to enhance data integrity. - One step array initialization and synchronization reduces the time to prepare a new RAID 5 array to accept data. - Auto synchronization automatically initializes drives without user intervention.