SWXD3-WH

This document provides product notes for the Digital Equipment Corporation SWXD3-WH 2.10 GB 3.5-Inch Low Profile Disk Drive SBB.

Key information includes:

• Product Type & Capacity: A 2.10 GB, 3.5-inch low-profile disk drive, part of the StorageWorks Building Block (SBB) series.
• Interface & Compatibility: Compatible with SCSI-2 single-ended interface standards (including Fast Wide SCSI-2). It is certified for Novell and Microsoft Windows and supported on various platforms like Intel-compatible Windows/NT, IBM RS/6000, Sun SPARC, and HP9000 Series. It works in both 8-bit and 16-bit wide storage enclosures.
• Performance: Features a 5411 RPM rotational speed, 512 KB segmented cache buffer, average read access time of 15.9 ms, and interface transfer rates up to 20 MB/s (synchronous 16-bit). It uses a banded recording technique for optimal storage capacity and media transfer rates up to 7.8 MB/s.
• Data Integrity & Reliability: Ensures high data integrity with a 96-bit Reed-Solomon error correction code (ECC) that operates "on the fly." The drive comes with a 5-year warranty and includes self-diagnostics.
• Special Features: Includes downloadable SCSI firmware, programmable sector size reallocation, tagged command queuing, background queue processing, and staggered disk spin-up to manage power consumption during startup in multi-drive configurations.
• Handling & Maintenance: Disk drives are delicate; improper handling or hot-swapping without a 10-second spin-down delay can cause damage. SBBs are not field reparable, and opening them voids the Digital warranty.
• Operating System Configuration: Provides detailed setup instructions and necessary configuration entries (e.g., etc/format.dat, etc/disktab, SMIT commands) for various operating systems like SunOS/Solaris, HP-UX, IBM AIX, and MS-DOS/Windows/Netware. Notably, MS-DOS has a limitation of 2.047 GB for primary or logical partitions, which does not apply to Windows NT.
• Identification: Each SBB features an identification label displaying the device type, capacity, SCSI ID, Logical Unit Number (LUN), RAID Controller Number, device bus width, and data transfer rate.