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Started by daemon id AA26028 Sun 1 Nov 92 2...
Mon, 02 Nov 1992 07:52
47.02 SunFlash: 2.1-gbyte Differential SCSI Disk Options
Author: daemon id AA26028 Sun 1 Nov 92 2...
Date: Mon, 02 Nov 1992 07:52
Date: Mon, 02 Nov 1992 07:52
328 lines
14938 bytes
14938 bytes
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The Florida SunFlash
2.1-Gbyte DIFFERENTIAL SCSI DISK OPTIONS
SunFLASH Vol 46 #x November 1992
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**************************************************************************
* *
* - New 2.1-Gbyte 5.25" Fast Differential SCSI-2 disk drives offer *
* 62% more capacity than Sun's 1.3-GB SCSI-2 and IPI drives, and *
* higher performance as well. *
* *
* - New Differential SCSI Tray for Data Center systems houses up *
* to 12.6-GB of capacity on a single SBus slot, resulting in *
* support for over 100-GB disk capacity on the SPARCserver 690MP. *
* *
* - New Differential SCSI Expansion Pedestal increases the storage *
* capacity of SPARCserver 630MP and 670MP deskside systems and the *
* SPARCserver 10 to over 41-Gbytes. *
* *
**************************************************************************
Sun server customers now have more growth capacity than ever before.
And that capacity is available at surprisingly low cost.
Sun expands its disk storage product line to include the latest
generation high capacity, high performance, high quality SCSI disk
technology. Two new packages, designed around Sun's newest disk
drive, are now available:
o New Differential SCSI Tray for Data Center systems can
accommodate from 2 to 6 of the new 2.1-Gbyte (formatted
capacity) drives. The tray provides nearly 2.5 times more
storage capacity than Sun's IPI tray at half the cost per
megabyte, all from a single SBus slot.
o Upgraded versions of the popular SCSI Expansion Pedestal
incorporate the new 2.1-Gbyte disk drives. The Pedestals now
offer nearly 17-Gbytes of disk storage, plus 5-Gbyte 8mm Tape
backup and CD-ROM in a convenient, small footprint deskside
pedestal.
The new 2.1-Gbyte Fast Differential SCSI-2 drive provides 62% more
capacity than previous generation 5.25-inch drives. Performance
benchmarks indicate up to a 10% I/O performance improvement as well,
depending on the application. Interface to host systems is via the new
DSBE/S SBus card.
As usual, these new disk products are priced dramatically lower than
comparable products from other system vendors.
o No major system competitor can match Sun's aggressive disk
storage price/performance.
Sun also offers better value than third party vendors.
o All these new products are backed by a level of engineering
commitment no third party can match. Sun's 2.1-GB disk
products offer superior quality, reliability, and
performance, yet are priced competitively with third parties.
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FEATURES BENEFITS
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2.1-Gbyte drive
---------------
62% more capacity than previous Enables larger server configurations
high-end disk drives
Over 40% better price/Mbyte than Makes large databases and file
1.3-GB IPI disk, and over 25% better systems more cost-effective
price/Mbyte than 1.3-GB SCSI disk
Fast (10 MB/sec) SCSI-2 More I/O throughput per SBus slot
3.8 - 5.0 MB/sec internal data rate Up to 25% better sequential I/O
throughput than 1.3-GB drives
11.5 msec average seek Faster random data access than many
5.5 msec average rotational latency 2+ Gbyte drives
Differential SCSI-2 (DSCSI) Enables large server configurations
supports 25-meter SCSI buses and more configuration flexibility
Advanced drive controller and Better I/O performance than third
Sun-optimized firmware party drives
SCSI-2 Tagged Queueing Better multi-drive, multi-process
(with Solaris 2.1 later this performance for I/O intensive
calendar year) applications
Differential SCSI Drive Tray for Data Center Cabinets
-----------------------------------------------------
First SCSI disk packaging for Sun data Brings the price/performance
center systems benefits of the latest SCSI-2
technology to the data center
Up to 12.6-Gbytes per tray Very high storage density in a
compact package and more
connectivity per SBus slot
Two to 6 drives per tray, with easy Flexible growth
mounting of additional drives
Tray may be attached to 1 or 2 SCSI Configuration flexibility for tuning
busses performance and connectivity
according to application needs
Front-accessible SCSI ID switches Easier installation and maintenance
and status indicators
High quality construction featuring High reliability for less down
rugged mounting, auto-ranging heavy time
duty power supply, and efficient
cooling fans
SCSI Expansion Pedestal
-----------------------
Up to 16.8-GB disk, plus 5-GB Convenient, easy to use
8mm tape and CD-ROM in a single packaging increases capacity
pedestal of deskside and desktop servers
by 50%
Custom configurable factory Order exactly the pedestal
built pedestals you need
Support for mixing of new 2.1-GB Protects investment in current
disk drives with 1.3-GB drives packaging and peripherals
in a single pedestal
High quality construction featuring High reliability for less down
rugged mounting, auto-ranging heavy time
duty power supply, and efficient
cooling fans
SBus Fast Differential SCSI-2/Buffered Ethernet (DSBE/S) Card
-------------------------------------------------------------
Fast Differential SCSI-2 Host Adapter Connectivity to highest performance
SCSI disk drives
Twisted pair Ethernet controller can High performance networking
transmit and receive at full Ethernet
media rates, and includes 128-KB local
cache buffer
Single width, dual function SBus card Conserves SBus slots
Lower price than most system vendors' More cost-effective connectivity
single function SCSI-2 cards
HARDWARE AND SOFTWARE REQUIREMENTS
----------------------------------
The DSBE/S card and the 2.1GB DSCSI drives require Solaris 1.1 Version
A (SunOS 4.1.3) or higher.
The 2.1GB Differential SCSI Data Center Trays are supported on the
SPARCserver 690MP in both the system and expansion cabinets.
The 2.1GB disks in the SCSI Expansion Pedestal are supported on the
SPARCsystem 10, SPARCsystem 630MP, and SPARCsystem 670MP. Unlike the
1.3GB SCSI Expansion Pedestal, these options are not supported on the
SPARCsystem 2.
Q: What is "Differential SCSI"?
A: The ANSI/ISO SCSI standard defines two types of electrical
interfaces: single ended and differential. Single ended is the
type of SCSI Sun has offered for quite some time. It uses a 50-pin
high density connector. Differential SCSI is a superior electrical
interface which uses different external cables and connectors.
Sun's differential SCSI-2 (or DSCSI for short) uses a slightly
larger, industry standard, 68-pin external connector.
The benefit of differential SCSI is that it allows total cable
length of a SCSI bus to be up to 25 meters (82 feet), whereas
single ended SCSI is limited to 6 meters (19.7 feet). For large
servers such as the SPARCserver 690MP, the bus length advantage of
differential SCSI is a significant benefit. In fact, one of the
reasons why SCSI disks have never before been offered on Sun data
center systems is that differential SCSI has not been widely
available.
Q: How much DSCSI capacity is supported on the 690MP?
A: Under Solaris 1.1 Version A, 50.4-GB. As many as 4 DSBE/S cards
and 4 Data Center Trays are supported.
The trays may be mounted in either the System or Expansion Cabinets.
The 690MP System Cabinet can accommodate up to 2 DSCSI Trays.
Q: Are the DSBE/S and 2.1GB DSCSI Data Center Trays supported on the
SBus Expansion Subsystems Board (SES/B) for the 690MP?
A: Yes. Note that there is some performance penalty for the indirect
SBus connection. The degree of performance loss is usually
small, but varies depending on the application and I/O load.
Q: How many SCSI Expansion Pedestals are supported on the 670MP,
630MP, and SPARCserver 10?
A: Up to 16 2.1GB disks and 4 DSBE/S cards are supported on the SS10,
630MP, and 670MP. That's 2 fully loaded Pedestals.
Q: Why aren't the DSBE/S and 2.1GB DSCSI drives supported on the
SPARCsystem 2?
A: Because the DSBE/S card will not fit properly in the SPARCsystem 2
chassis. The opening in the back panel of the SS2 is not large
enough.
Q: Can customers add 2.1GB drives to existing 1.3GB SCSI Expansion
Pedestals?
Yes. A SCSI Expansion Pedestal may house one single ended SCSI
disk tray with 1.3-GB SCSI disks and one differential disk tray
with 2.1-GB DSCSI disks. So customers who have existing Pedestals
with one 1.3-GB disk tray and want to add a differential SCSI tray
(X763A) may do so. However, mixing of a 1.3-GB tray and a 2.1-GB
tray in a pedestal is not allowed for any factory built
configurations.
Because of the differences between single ended and differential
SCSI cabling, the 2.1-GB drives and the 1.3-GB drives trays cannot
be mixed in a single tray.
Q: Are the DSBE/S and the Differential SCSI Expansion Pedestal
supported on the SBus Expansion Subsystems (SES/C and SES/B)?
A: No. They have not been fully tested and qualified on the SES/C or
SES/B.
U.S. PRICING AND ORDERING INFORMATION
-------------------------------------
Options for the 690MP System and Expansion Cabinets:
Order List Disc. Same Day
Description Number Price Cat. Service
=============================================================================
2 x 2.1GB Differential SCSI Disks 573A *# $11,700 B $50
with Tray
4 x 2.1GB Differential SCSI Disks 574A *# $20,000 B $100
with Tray
6 x 2.1GB Differential SCSI Disks 576A *# $27,800 B $150
with Tray
2.1GB Differential SCSI Expansion Disk X575A $4,400 B $25
SBus Fast Differential SCSI-2 / 1052A * $1,095 A $20
Buffered Ethernet Card (DSBE/S)
12-meter Differential SCSI Expansion X979A $265 N/D N/C
Cable
* Add "X" before the order number to order as a standalone option for
existing systems.
# Append "R4" to the order number for factory installation in the
system cabinet. Append "R5" to the order number for factory
installation in the expansion cabinet. When ordering a tray for
factory installation in either a system or expansion cabinet, append
"V3" to the order number for 230V operation and "V4" for 240V
operation. X-option trays for field installation should not be
ordered with the "V3" or "V4" options.
SCSI Expansion Pedestal Options:
Order List Disc. Same Day
Description Number Price Cat. Service
=============================================================================
2 x 2.1GB Differential SCSI Disks in SCSI X762A * $13,300 B $50
Expansion Pedestal (1 Disk Tray)
4 x 2.1GB Differential SCSI Disks in SCSI X764A $24,500 B $165
Expansion Pedestal with 5GB 8mm Tape
Backup Drive (2 Disk Trays)
2 x 2.1GB Differential SCSI Disks with X763A * $9,200 B $50
Tray for SCSI Expansion Pedestal
2.1GB Differential SCSI Expansion Disk X575A * $4,400 B $25
SBus Fast Differential SCSI-2 / X1052A $1,095 A $20
Buffered Ethernet Card (DSBE/S)
* These options are available in custom factory built configurations.
See General Configuration Guidelines in price book.
Note: 2.1GB Differential SCSI Expansion Pedestal options are supported
on the SPARCsystem 10, SPARCsystem 630MP, and SPARCsystem 670MP. They
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
For information send mail to info-sunflash@sunvice.East.Sun.COM.
Subscription requests should be sent to sunflash-request@sunvice.East.Sun.COM.
Archives are on solar.nova.edu, paris.cs.miami.edu, uunet.uu.net,
src.doc.ic.ac.uk and ftp.adelaide.edu.au
All prices, availability, and other statements relating to Sun or third
party products are valid in the U.S. only. Please contact your local
Sales Representative for details of pricing and product availability in
your region. Descriptions of, or references to products or publications
within SunFlash does not imply an endorsement of that product or
publication by Sun Microsystems.
John McLaughlin, SunFlash editor, flash@sunvice.East.Sun.COM. (305) 776-7770.
are not supported on the SPARCsystem 2.
TRACE: To: sunflash@housun.Central Errors-to: owner-sunflash@housun.Central.sun.com
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