Mass Storage Controllers & Busses
Adaptec 2940 SCSI Card
Adaptec 2906 SCSI Card
Adaptec PowerDomain 29160 SCSI Card
NCR / SYMBIOS SCSI Card
Adaptec 1542 SCSI
Adaptec 1742 SCSI
Atto Tech SCSI Cards
Compaq Smart Array 4200
- 2x ATA/100 Channels on a 133 MHz PCI Card. 200 MB/Sec max.
- BIOS displays data rate to individual drives at boot-time.
- Ultra 100 TX2 Manual
- Ultra 100 TX2 BIOS Versions
- Download All
- Notes:
- Runs with 66MHz PCI. x 32bits == 266 Mb/sec
- IDE1 is at the board end, IDE2 is at the bulkhead end.
- SLows to ATA/66 if 40 pin cables used.
- Ultra DMA {5, 4, 3, 2, 1, 0} Ultra DMA 5 is fastest.
- DMA {5, 4, 3, 2, 1, 0}
- PIO {5, 4, 3, 2, 1, 0}
Potential Upgrade for somes boxes which need newer drives.
SCSI -- Small Computer Systems Interface
SAS -- Serially Attached SCSI
FC -- Fiber Channel
IDE / ATA -- PATA -- SATA
ATA / PATA / IDE
- 40 Pin Ribbon Cable
- 80 Pin grounded ribbon cable needed for > ATA/66
- ATA, ATA/33, ATA/66, ATA/100, ATA/133
- Various Ultra DMA, DMA, and PIO Modes.
SATA
- SATA I == 150 MB/s per port ~ 1.5 Gb/sec
- SATA II == > SATA I Usually 300 MB/s per port ~ 3.0 GB/sec
- Sata 2.5 == 300 MB/s, NCQ, Spinup, Hot Plug, eSATA
- SATA-IO Website
I/O Bus
- SCSI
- SAS
- ATA
- SATA 1.5 / 3.0 GB/sec
- FC
- FC-AL
- SCSI -- 5 MB/sec
- Fast SCSI -- 10 MB/sec
- Fast Wide SCSI -- 20 MB/sec
- Ultra SCSI
- Ultra Wide SCSI
- Ultra2 SCSI
- Ultra3 SCSI
- Ultra160 SCSI (160 x2 == 320 MB/sec)
- Ultra320 SCSI (320 x2 == 640 MB/sec) 12m Cable Length
- SAS -- Serially Attached SCSI
- Differential SCSI -- HVD, LVD (High/Low voltage Differential)
Bus Speeds
- SCSI (SCSI-1) 5 MB/s
- Fast SCSI (SCSI-2) 10 MB/s
- Fast Wide SCSI 20 MB/s
- Ultra SCSI 20 MB/s
- Ultra Wide SCSI 40 MB/s
- Ultra2 LVD SCSI 80 MB/s
- Ultra 160 SCSI 160 MB/S
- Ultra 320 SCSI 320 MB/s
Operation Modes
- CDB -- Command Data Block
- Sync / Async transfers
- Disconnect / Reconnect
- Tagged Command Queueing
- Addresses / LUN
SCSI Connectors / Cables
- HD-50
- VHDCI
- 68 to 50 Pin Adapter (Wide bus -> Narrow Drive)
- 68 to SCA (Wide bus -> SCA drive)
- 50 to SCA (Narrow bus -> SCA Drive)
- SCA -- Single Connector Adapter.
Provides Power, Wide SCSI, and Config Info.
Used for hot-swap and raid configs.
- 68 Pin -- Needed for Wide SCSI
- 50 pin -- Narrow SCSI
- 50 pin centronics, hi-density
- 25 pin -- old slow SCSI + Macintosh.
- Terminator -- Passive / Active
- Signalling -- Single Ended / Differential / LVD
Bolo's Computer Notes
Bolo's Home Page
Last Modified:
Tue Feb 15 12:54:15 CST 2011
Bolo (Josef Burger)
<bolo@cs.wisc.edu>