For computing Assistance, contact the beamline scientist or the px operators.
In case of real trouble contact:

John Skinner
tel:344-3222 skinner@bnl.gov

ALL things CBASS,
GRACE, ACE, CHOOCH
related


Matt Cowan
tel: 344-4210
cowan@bnl.gov

Cluster questions,
dual head stuff, data backup,
motor control

General Information

Visitors to the beamline are expected all to use the same username: "pxuser" Ask what the password is. This user and password can be used at all the other crystallography beamlines. Each data disk has a subdirectory for this user and sub-sub directories can be assigned. The names for the first layer of directories should include the name of the P.I.

Disk drives are all accessible to each machine through nfs access. Issue the df command to see which ones are mounted on the machine you are working on. Most of the beamlines will have an /img##/data1 raid array disk assigned to them for storing the images of data collection (ex. x26c has /img06/data1).

List Of Machines and Their Associated Peripherals
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For users

x26c-a.nsls.bnl.gov:
PC (Linux)

This machine is very fast to process data. Its dual-headed display comes handy while using the processing software.
peripherals:    firewire disk (USB port), CD-W, printer
x26c-b.nsls.bnl.gov:
PC (Linux)		 This machine is  fast to process data. Its dual-headed display comes handy while using the processing software.
peripherals:    firewire disk (USB port), CD-W, printer
cyber café machine
 These machines are fast to process data and have most of the crystallography software. They are located near X29 or at X12B. Please use these macines for FTP or DVD backup.
dunkin, starbucks, java, latte, frappe, gevalia, yuban, maxwell
peripherals:    firewire disk (USB port), CD-W, DVD-W, printer

For the beamline's operation Never REBOOT  these machines before asking a PX operators or a beamline scientist FIRST
x26c-h.nsls.bnl.gov:
PC (Linux)
 		Runs the motor control functions of the beamline.
Users should not have to log on to this machine.
x26c-q4.nsls.bnl.gov:
PC (Windows)		 Run the ADSC Q4 detector.
Users will never have to log on to this machine.
x26c-d.nsls.bnl.gov:
Octane (Unix)

This machine runs the data collection and beamline control software and operates the CBASS data collection program. This is running cadmad -- the module that commuicates with the CAD4(diffractometer).

The ADXV image-viewing software also runs from this machine.
peripherals:    DDS4 tape drive, printer
Users should not have to log on to this machine.
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Connecting Your Own PC to the Network

Users may connect their own PC to the laboratory network through the DCHP server by following the instructions available on the NSLS web-site. A web-based form must be filled out on-line from the computer being connected within 30 minutes after the initial connection to prevent the network port from being deactivated.

Data Backup

The recommended method of backing up data is to archive to the user's own laptop computer with firewire disks but other options are available.