What's New in the Undergraduate Computing Laboratory
2004-2005
- Dead power supplies were replaced on ws25 and ws35 by Prof. Stark
on May 16-17. At that time, there are additional dead power
supplies on ws23 and ws26, and power supplies with failing fans
on several other machines. Brian Tria is going to look into
buying some additional power supplies.
- Dead monitors were replaced on ws21 and ws30 by Prof. Stark on May 17.
- A failed DeathStar was replaced on ws39 by Prof. Stark on May 17.
- Pat Tonra left CS for Math at the end of the summer, but he has graciously completed
an update of the Windows 2000 image, which is awaiting installation on the lab
workstations by Prof. Stark in Spring 2005. Thanks, Pat!
- Data corruption on the "raid2" filesystem (causes unknown) necessitated a full restore
which was carried out by Prof. Stark at the end of September.
- The 10 batteries in the 18KVA UPS that supports the lab were replaced in January, 2005
after one failed in November. These were the original batteries that came with the unit.
- A failed 20" monitor on ws19 was replaced by Pat Tonra in August.
- Failed "DeathStar" drives on ws16 and ws19 were replaced with
40GB Seagate Barracuda ST340014A drives by Pat Tonra in July.
- A failed "DeathStar" drive on ws20 was replaced by Pat Tonra in September.
- A failed "DeathStar" drive on ws3 was replaced by Pat Tonra in September.
- A disk drive on "console" failed in August. The drive was replaced and data was
restored by Prof. Stark.
Summer 2004
Approximately $5K of SCAP funds (I don't think anybody informed me of the exact numbers this
time) were provided for server upgrades via Nancy Duffrin (thanks!).
These were used to purchase and install the items below.
- A Dell PowerEdge server system with dual 3200MHz Xeon processors and 3GB of RAM has
replaced the Pentium II/450MHz system as public.ug. The old public.ug machine
will continue to run the Web server, and it has been renamed to www.ug.
Users on public.ug can view the web server logs under the directory
/wwwlogs.
- An Adaptec RAID controller, 8 bay drive enclosure, and 8 Fujitsu 73.5GB drives to
replace the aging 5x4GB Seagate Barracudas that were part of the original lab
purchase. The new array is now being used to store student files (the "raid1" filesystem)
and the old "raid1" hardware has become "raid2", which stores faculty and
course files. The old "raid2" disk array (the Barracudas) is slated
to be decommissioned.
In the process of installation, it was found necessary to retire
the old Pentium-class server that used to be the "raid1" server and replace it with
a spare Pentium II/450MHz machine.
In view of the increased disk space, student quotas have
been increased to 200MB and a large "scratch" area has been added to public.ug.
2001-2004
After the installation of the new workstation hardware in September 2001, only software and minor
hardware repairs were performed on the lab through May 2004.
- Windows 2000 Professional was installed on each of the workstations, and updated
once since its initial installation. Thanks to Pat Tonra (CS staff)
for providing the installation image and handling adminstrative tasks that needed
to be carried out individually for the Windows installation on each of the workstations.
- Operating system and/or software upgrades were performed in May/June 2003 and September 2003,
by Gene Stark (CS Faculty).
- One or two monitors and a disk drive that failed since the installation were replaced with spares
by Gene Stark.
- The September 2001 upgrade had used IBM DeskStar 30GB drives. These are now known in the
industry as "DeathStar" drives. There were one or two that were DOA, and some failures
have continued since the installation. In July 2004, Pat Tonra replaced failed IBM drives
on ws16 and ws19 with new Seagate Barracuda 40GB drives.
- In August, 2004, the server "console", which was the first system purchased for the lab
ten years ago, had a crash of its ancient 420MB disk drive. The drive was replaced
with a (larger) spare by Prof. Stark. The rest of the "console" hardware, which is
a 486DX2/66MHz VLB machine, is still hanging in there running the system logger,
name and time service, processing card swipes, and opening the lab doors.
- The Sparc20 and Sparc IPX servers, which had not been doing anything useful for some time,
were permanently retired in August 2004.
2000-2001
As of September, 2001, all workstations in Room 2128 have been replaced
with updated hardware. The new systems, which were purchased as parts
and assembled in-house, have the following features:
- Pentium III/866MHz processor.
- 256MB RAM.
- 30GB hard drive.
- ATI Rage 128 video card with 32MB RAM.
- Creative 52X CD-ROM
- ASUS micro-ATX motherboard with on-board sound
and ethernet.
- ViewSonic 19" short-depth monitor.
This upgrade is the culmination of a months-long project that began
in February 2001 with the allocation of funds (an estimated $60K was
spent on the upgrade) administered through Nancy Duffrin's office (thanks!),
continued through Spring 2001 with research on the type of hardware that
would be suitable for the upgrade and purchase of a prototype,
final selection and purchase of upgrade parts in May/June, 2001,
and the removal of the old systems and assembly and installation of
the new systems in July/August, 2001.
The new systems are currently running FreeBSD, as the old systems did.
It is planned for the new systems to also run Windows 2000 Professional
(the old systems ran Windows NT).
The Windows 2000 capability is currently awaiting available CS staff time
to create a suitable installation image that can be loaded on the
individual disk drives on the workstations.
We hope to have this available before too much time goes by.
Thanks to the following individuals for the significant amounts of time
they spent on this project:
- Ashwin Nagrani (CS staff), who researched hardware and software
constraints, generated requisitions, took deliveries, helped in
the assembly of the prototype, and helped with the installation
and assembly of the new systems.
- Pat Tonra (CS staff), whose help in the installation, assembly and
cleanup was indispensible in getting the Lab back into operation
by the first week of the Fall 2001 semester.
- Brian Tria (CS staff), who helped in drilling the tables and the new
cases so that the systems could be secured.
- Nancy Duffrin and her staff (Instructional Computing), for making
the funds available, for shepherding purchase orders through
the system, and for generally being very patient and responsive.
- Gene Stark (CS faculty), who spent much more time than he probably
ought to have spent in all aspects of the project, from the
initial research right up to breaking down the shipping boxes
and bundling packing material for disposal.
1999-2000
- All workstations now have new mice, which were purchased
with SCAP funds and installed in August, 2000 by Professor Stark.
- The UG lab workstations will now run Windows NT as well as
FreeBSD Unix. To boot Windows NT, type ESC during the boot
sequence when the FreeBSD kernel starts to load,
then type "dos" at the prompt. Once Windows is running,
log in using ID "guest" and password "uglab".
You can access your home directory on the file servers
under the network shares "raid1" or "raid2".
The share "raid1" contains all student directories.
Use your UG lab ID and password when asked for authentication
when you try to access one of these shares.
- The server "console", which performs name service, time service,
operates the magnetic card swipe systems, and maybe does some
other things I have forgotten, reports the following uptime on
August 3, 2000:
console% uptime
4:02PM up 420 days, 22:16, 1 user, load averages: 0.03, 0.03, 0.00
console% date
Thu Aug 3 16:04:07 EDT 2000
console% uname -a
FreeBSD console.ug.cs.sunysb.edu 2.2.7-RELEASE FreeBSD 2.2.7-RELEASE #0: Tue Jul 28 01:35:48 EDT 1998 stark@gatekeeper.ug.cs.sunysb.edu:/A/src/sys/compile/CONSOLE i386
1998-1999
Some new hardware purchases were made with SCAP funds and the hardware
was installed by Professor Stark (me). I was delinquent (too busy, actually)
to write this up, so I'm going to have to go back to my E-mail archives
to find out what was done. I do recall the following:
- A second DPT RAID controller, server system, and RAID enclosure,
which now houses the five Seagate Barracuda disks that were
part of the original UG lab purchase. This is now the "raid2"
server.
- The "ufs2" server was retired and reincarnated as a SunOS compute
server (sparcipx) to support the networks class.
- Some of the other servers (bfs1 and bfs2) were upgraded to
Pentium class motherboards.
- The "public.ug" server was upgraded to a PII/450 with 384MB RAM.
- New Quantum disk drives (about 3GB) for each of the workstations.
These were installed with space left for a Windows NT area,
as well as for FreeBSD. The Windows NT installation was finally
completed in 2000 (see above).
- Some new monitors.
1997-1998
Once again we thank the committee in charge of allocating SCAP funds
for allocating about $20K this year for maintenance and upgrade items.
These funds were used during Spring 1998 to purchase the items below.
Installation was performed by Professor Stark during Summer 1998.
- Thirty ASUS TX-97LE motherboards with Pentium 200MMX processors
were purchased, to upgrade the remaining 486DX2/66MHz systems.
As of this writing, there are now 7 workstations in the lab
with ASUS P/I P55T2P4 motherboards and Pentium 133MHz processors,
and 30 workstations with ASUS TX-97LE motherboards with
Pentium 200MHz processors. One workstation still has a
486DX2/66MHz processor, due to an ASUS P/I P55T2P4 motherboard
that failed early in the summer.
- Thirty ATI 3D Xpression+ PC-2-TV 4MB PCI video cards were
purchased and installed on the new motherboards.
The new video cards were needed to replace the old VLB
cards that could not be transferred to the PCI motherboards.
- Twenty units of 8Mx64 SDRAM was purchased, and installed
on the new motherboards. The existing memory was reshuffled
so that all workstations now have 64MB of RAM, configured
as either 1 64MB SDRAM, 2 32MB SIMMs, or 4 16MB SIMMs.
- Ten Princeton E070 17" monitors were purchased and installed,
replacing some of the original 15" CTX monitors that had become
unacceptably dim.
- A DPT PM3334UW/2 2-channel PCI RAID controller was purchased,
along with five Quantum Fireball SE 8.4GB SCSI drives and
a RAID enclosure. A Pentium 133MHz system was constructed
from spare parts and the DPT controller installed in it.
The new RAID unit gives over 30GB of new user storage.
Student files will be moved to this unit in August,
at which time all student disk quotas will be increased
from 10MB to 30MB.
- A number of power supply and CPU fans were purchased. These fans
fail and need to be replaced on a regular basis.
Other miscellaneous items were purchased using funds from
student fees. These included:
- New DDS-3 DAT drive and tapes to take over backups from
ailing DDS-2 DAT drives, and to provide extra capacity
needed when the RAID unit goes on line.
- Quantum Fireball SE 8.4GB SCSI drive as "cold spare"
for RAID system.
- 100Mb/sec hub to connect public compute/Web server and
RAID unit to the 100Mb/sec port on the Cisco switch.
- Flash Boot ROMS for SMC PCI network cards.
- Paper and cartridges for printers.
- Adaptec SCSI controller to replace apparently
failing Buslogic unit.
- Western Digital 1.2GB disks used for server boot drives.
- 13 Chairs to replace broken ones in Room 2128.
- Carpet cleaning for Room 2128.
- Magnetic swipe cards for access control to Room 2128.
- DAT tapes for system backups.
- Repairs to DAT drive used for system backups.
- Miscellaneous cables.
Professor Stark spent approximately 35 minutes per system in Summer 1998
to perform motherboard/memory/video replacement on 30 workstations.
He spent approximately 20 minutes per system to replace 10 monitors.
Significant other amounts of time were spent setting up the RAID server
and performing software updates.
Parts replacement performed by Professor Stark included:
- 10 failed power supply fans (approx. 15 minutes per fan).
- 1 failed power supply (approx 20 minutes).
- 2 failed mice.
- 3 failed 486 CPU fans.
- 1 failed keyboard.
- 2 failed network cards.
- 1 failed ASUS P/I P55T2P4 motherboard.
- 1 failed speaker.
- 13 broken chairs.
1996-1997
Improvements in the Lab continued. Thanks to Rich Reeder, Nancy Duffrin,
Phil Lewis, and anyone else I don't know about who was on the committee
in charge of allocating SCAP funds, the UG Lab was allocated $15K for
equipment purchases. These funds were used during Spring 1997 to purchase
the items below. Installation was performed by Professor Stark during
the Spring 1997 semester.
- Additional memory needed to upgrade all user workstations to 32MB RAM.
- Eight Intel Pentium/133MHz motherboards and video cards, to upgrade
eight user workstations.
- Five iOmega ZIP/100 drives installed on user workstations.
- Intel Pentium/200MHz system for public compute server.
Old Pentium/133MHz compute server "retired" to a new role
as dedicated gateway machine.
- Upgrade of the two Sparc IPC file servers to 80MHz Sparc IPX
systems with 32MB memory each.
- Cisco 1900 Ethernet switch to upgrade the core Lab network,
provide a 100Mbps link to the campus network with each cluster
of 7 or 8 workstations having a dedicated 10Mbps channel,
improve bandwidth between workstations and file servers,
give the public compute server and Web server a 100Mbps link
to the campus network, and provide an upgrade path for installation
of additional 100Mbps components in the future.
- Four spare power supplies to replace failed units and depot for
future failures.
- Two 1.2GB IDE disk drives for spare and use as boot drive in new
server system.
- Five SMC 10/100 PCI Ethernet cards for use in new Pentium systems
will eventually free up ISA Ethernet cards as spares.
- 20 CPU fans to replace failed units.
In May, 1997, Professor Stark replaced 6 failed power supply fans.
1995-1996
Several improvements were made to the Lab equipment in 1995-1996.
These improvements were funded primarily by fees paid by students
during the 1995-1996 academic year, and the improvements were implemented
primarily by Professor Stark.
- (December 1996) A Microtek E6 scanner (600dpi) was installed in the lab.
It is connected to
ws31.ug.cs.sunysb.edu.
To find out how to use it, see
here.
- (August 1996) Thanks to Rick Spanbauer and Computing and Communications,
a fiber optic link was installed, giving the Lab a 100Mbps
connection to the campus network.
- (July 1996) A Pentium/133MHz machine with 128MB of RAM, 1GB of disk,
and two 10Mbps/100Mbps ethernet cards was purchased as a
compute server and gateway machine.
- (June 1996) Low memory prices in June 1996 made it possible to upgrade
19 of the 38 workstations in Room 2128 to 32MB of RAM from the
original 16MB.
- (May/June 1996) About one-third of the CPU fans in the Lab workstations
had failed and were replaced. Several of the main fans in the
workstations had also failed and were replaced.
- (January 1996) A magnetic card reader was installed to provide access
control for Room 2128. The reader itself was part of the initial
lab purchase, but additional required computer interfacing hardware
was purchased using funds from student fees.
1995: Original Configuration
When the Lab was opened in 1995, the main items in the Lab configuration
were as follows:
- Thirty-eight Intel 486DX2/66MHz VLB workstations, with 16MB RAM,
420MB hard disk, SoundBlaster 16 sound card, Mitsumi FX001D
2X CD-ROM drive, 3.5" floppy drive, VLB video card with 1MB RAM,
15" SVGA color monitor, 10BaseT ISA Ethernet card, keyboard and
mouse.
- Sparc20 compute server with 64MB RAM and 1GB disk.
- Two Sparc IPC file servers with 16MB RAM and 2x4GB disk drive.
- Intel 486DX2/66MHz file server with 2.5GB disk, plus
4GB disk used as a staging area for backups.
- Intel 486DX4/100MHz file server with 2.5GB disk.
- Intel 486DX2/66MHz server with 420MB disk used for name service,
time service, gateway to campus network.
- 8 port 10BaseT Ethernet switch.
- Various 10BaseT Ethernet multiport hubs and transceivers.
- HP LaserJet 4M+ laser printer.
- HP 4mm DAT tape for backup.
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