# Presentation: 177383

## SLAC Site Report

- Len Moss
- SLAC Computing Services
- Stanford Linear Accelerator Center

## Experiment Status

- BaBar
- New run startup delayed due to serious electrical accident in the Linac.
- Ramping down Objectivity for data in favor of new xrootd format
- Glast
- Starting telescope assembly and cosmic ray testing in December
- Planning 75 node cluster with 25 nodes and 25 TB of disk in 2005

- Len Moss

## Storage Expansion

- Len Moss

**Notes:**
• About 100 TB added since May

## BaBar data in HPSS

- Len Moss

## Processor Updates

- Purchased ~300 Sun Fire 20Z systems, due this week
- Dual 2.2 GHz Opterons, 2GB memory, 1 MB L2 cache
- 36 GB SCSI drive, extra drive slot available
- Power management via separate LAN and service processor
- 256 systems for batch farm, replacing 256 Sun Netra T1s
- Remainder for miscellaneous servers
- Will run 32-bit RHEL 3 kernel
- Replaced all power supplies on our Rackable Xeon systems
- 384 systems taken off-site by vendor over long weekend power outage

- Len Moss

- Len Moss

## Managed systems, including desktops

- Managed systems, including desktops

- Solaris 7

- Solaris 8

- RH 6.2

- RH 7.2

- Solaris 9

- 7.3

- RH 9

- RHEL3

- Len Moss

## Linux Status

- Red Hat Enterprise 3 (RHEL3) rolled out to nearly all servers and about 75% of desktops
- Trying to upgrade all remaining pre-RHEL3 systems, but...
- BaBar needs RH 7.2 build capacity for some time
- Lack of support from Fedora Legacy is serious concern
- Will try to restrict RH 7.2 to a few servers

- Len Moss

**Notes:**
• RH7.2/RH7.3/RH9 : 46/52/94

## Linux Status, cont’d.

- Weekly Red Hat phone meetings very useful
- Have opened about 50 issues, currently about 16 active
- Updates
- Cron job to pull all updates from Red Hat Network
- Use yum to update onsite systems
- Provide RHN entitlements to update mobile and offsite systems
- Starting to look at Scientific Linux, so far only for a few build and interactive servers

- Len Moss

## Solaris Status

- Solaris
- Solaris 9 on most Sun systems
- 5 remaining Solaris 7 systems
- Starting to downsize our Solaris batch farm
- Will look at Solaris 10 soon

- Len Moss

## AFS Issues

- Support
- Agreement with Sine Nomine for AFS support on Linux and Solaris
- Windows client support also available
- Contributed support to Jeff Altman for work on Windows client
- Future projects may include AFS device driver
- Encryption
- Recently turned on encryption for all clients except batch workers

- Len Moss

## Kerberos 5

- Recently switched to Heimdal Kerberos 5 KDCs on AFS DB servers
- Fully K4 and AFS (kaserver) compatible
- No problems at cutover – users never noticed
- Clients still mostly AFS (klog, et al.) but...
- Gradually rolling out PAM module
- Most admin Perl scripts using Heimdal::Kadm5
- SLAC’s K5 realm info in DNS

- Len Moss

**Notes:**
•Our K5 realm: SLAC.STANFORD.EDU = {
	kdc = k5auth1.slac.stanford.edu, k5auth2.slac.stanford.edu, k5auth3.slac.stanford.edu
	kpasswd_server = k5passwd.slac.stanford.edu }

## Request Tracker (RT)

- Replaced pure-email system with RT3
- Open source, support available from Best Practical
- Web interface for admins, users still use email (for now)
- MySQL backend, DB growing at ~0.5 MB/day
- Average of ~25 new tickets per weekday
- Interface and work flow can be extensively customized

- Len Moss

## Platform LSF

- Now using LSF to manage a 64-node MPI cluster
- Investigating LSF to manage Windows and Mac OSX clusters
- Platform now has world-wide HEP terms available
- Unit buy-in cost depends on total HEP licenses
- Annual support depends on cluster size, but is tiered and capped

- Len Moss

**Notes:**
Send mail to dtabor@platform.com for more info.

## New Projects

- KIPAC
- Mac OSX cluster
- 10 workers, managed by LSF, and 4 servers
- 	(see Chuck’s talk later this week)
- Plan to buy a large SMP
- Probably SGI Altix (Itanium, Suse Linux)
- Research project: Huge Memory Machine
- Pilot phase: 64-node AMD Opteron cluster with 0.5 to 1.0 TB of memory
- 	(see Chuck’s talk later this week)

- Len Moss

**Notes:**
• Mac cluster: Chuck’s talk on Thursday
*  HMM: Chuck’s talk on Thursday

## Windows Storage

- Windows storage at 8 TB and doubling every year (faster than Moore’s Law)
- Quota’s implemented using Veritas StorageCentral
- User space allocated in 500 MB chunks up to 2 GB
- Initial group space set to 10 GB or 10% above current use
- Group space will grow equally over time
- Groups with larger needs can purchase additional space in TB chunks
- Veritas CommandCentral procured to manage storage:
- EMC CX600, Hitachi 9980, Sun 6120, EMC AX100, Emulex 9002 and 9802 HBAs
- Brocade 3800 and 3900 switches

- Len Moss

## Windows Backup

- Snapshot LUNs, Exchange 2003 and MS SQL storage to EMC AX100 SATA disk using_x0005_Veritas Storage Foundation and Flashsnap and MS VSS
- Veritas NetBackup then archives to STK L180 LTO library
- Expect to be able to recover by mounting a snapshot volume on the EMC AX100s, full recovery within 4 hours
- Should be online by Q1 2005

- Len Moss

**Notes:**
•MS VSS - Snapshot API

## Other Windows Projects

- Migrated AD from Windows 2000 to Windows 2003
- Using Thursby’s ADmitMac
- Windows Dfs access for Mac OSX users
- Uses Windows Kerberos authentication
- Plan to implement SpySweeper EE anti-spyware for Windows desktops

- Len Moss

**Notes:**
• EE = Enterprise Edition

## Other Windows Projects, cont’d.

- Investigating Windows XP SP2:
- Currently blocked via GPO
- Will probably treat more like a new OS rather than a Service Pack
- Investigating Firewall Authenticated Bypass to manage systems that have the firewall applied
- Windows questions?
- Send mail to Brian Scott, btscott@slac.stanford.edu

- Len Moss

**Notes:**
• GPO = General Policy Objects