We're Not CIS. The Technical Staff & Computing Facilities. What CIS Does for CS. User Community

Transcription

1 We're Not CIS The Technical Staff & Computing Facilities CIS: Computing and Information Services Campus Computing Provides the Univ's computing infrastructure Course registration (Banner) Payroll (via Workday) (via Google) Web ( Student Clusters Support for other academic departments CS: Computer Science Department We provide some our own infrastructure Network Wireless (gmail) What CIS Does for CS Commercial Software Virtual Machines (VMWare) Identity Management (accounts) Coming Soon file storage (EMC Isilon) Faculty User Community 30 full-time 27 other faculty and postdocs Students 81 phd 98 masters ~1400 undergrads Staff 11 admin 8 technical 7 research 1

2 Technical Staff Facility Approximately 500 machines John ~100 servers (~30 VMs) ~475 workstations Labs 3 ugrad (sunlab, mslab, 201) 5 research (robotics*2, big data, graphics, compbio) Teaching/Meeting space Phirum Paul Kathy SPOCs 5 ugrad ta rooms 4 classroom/conference rooms SciLi 8th Floor Frank Donald Ben Will Ben Steven Josh Managed Desktop Computer Options no root or admin privileges software by request guaranteed by tstaff Standalone Desktop you install and administer tstaff guarantees hardware only Laptop (PhDs only) anything within your equipment budget you install and administer Apple, Dell or MaxBuilt only Brown owns it Desktop Systems All PCs are built here from parts we choose We control the quality We control software compatibility We repair them ourselves We can also upgrade components Current systems: Intel Core2 quad-core 4G (memory upgrades by request) 2

3 Compute Resources GridEngine cluster (132 nodes, 2222 cores, 40 GPUs) core with 128G or 256G RAM 5 48-core with 256G RAM core w/64g RAM core w/24g RAM and an assortment of others 10 GPU servers with 4 GTX1080s each Mailing List: compute@lists.cs.brown.edu Research machines, robots, etc... use by arrangement only File servers GPFS clustered file servers (437 TB) main filesystem backed up daily snapshots every 4 hours.snapshots directory daily snapshots saved for 7 days weekly snapshots saved for 30 days read-only /home, /course, /research, etc... also /data and /nbu /data - less volatile data, daily backups, no snapshots /data/people/<username> /nbu - not backed up /nbu/people/<username> NFS File services Key points Network Internet, Campus, Wireless accessible only within the department only from trusted machines (linux) CIFS authenticated access (windows, mac, linux) accessible from trusted & smn (see next slide) 3 network segments DMZ external services SMN untrusted Trusted file services... DMZ Self-Managed Network Trusted 3

4 Uptime Redundant services a backup for every service automatic failover where possible CIS datacenter 24 / 7 facility, 9-5 staff SPOCs available after hours and weekends Managed Systems: Software Linux only Debian 9 (stretch) 100s of applications installed All desktop machines are configured similarly For users, machines are all the same Staff manages the systems Users don't have root Can't find what you want? Ask us. Managed Systems: Admin Centralized configuration no unique bits on desktops or servers ever! any machine can be rebuilt automagically shared settings expressed in one place Controlled upgrades semester freeze ensures stability upgrades restricted to start of summer end of summer winter break Hardware In Your Office Managed desktop don't power it off, ever don't move it don't swap components do turn in components you don't need (e.g. keyboard) do let tstaff know if you need help with hardware Office network jacks ports are administered individually, so don't move cables My laptop? register to use the wired network in your office 4

5 Tstaff provides Support Philosophy Managed systems (hardware and software) Network-based services Documentation Issue reporting and tracking for managed systems our services Tstaff is NOT a help desk We have a lot of experience and will provide answers and advice, when we know of a solution Please try to google an answer before contacting us xkcd.com/627/ Mail problem Ticket tracking system used by Tstaff It's how we manage our work Users interact with queue via problem@cs.brown.edu Priorities priorities depend on severity and how many are affected Managed by full time staff during the day spocs at night Monitors Managed desktop, Standalone or laptop Monitors and keyboards supplied by CS dept Monitors? Dual 19-inch monitors (1280x1024 each) One 24-inch monitor (1920x1200) Please don't swap them yourself! mail problem 5

6 Standalone & Laptop Machines Administering your own machine apply security updates configure system software (cifs, vpn, etc) backup your important data time machine (mac os) crashplan git rsync dropbox Brown Account Password Passwords logging into your account on a CS system accessing CIFS file shares (but see us, first) LDAP Password web services openvpn databases to change it You have a web page Your Web Page it's a CMS page content is in 2 places account profile name, picture, details profile page page content how to make changes log into the web with your LDAP password visit your account profile edit profile page in-browser using the CMS Unstyled personal pages available by request. Your Mail your_fullname@brown.edu Google mail, via CIS your_logname@cs.brown.edu forwarding only! defaults to your_fullname@brown.edu but you can change that by editing your profile: 6

7 Ssh Connecting Set up your keys (w/passphrase!) ssh.cs.brown.edu VPN Configure OpenVPN FastX Remote linux desktop Wireless Campus wireless network is outside CS connect to Brown secure wireless network, then ssh or vpn in Where Can I Find Information? System webpages: Technical Staff Blog: 7