Attendee: Douglas, Booker, Wei, Randy, Alf

1. Tier 2 Production and Operation

No jobs. New pilot can't contact BNL Panda server. Panda team is  
working on it. Complaint to Kaushik De to get priority to fix this  
problem. However, US ATLAS is running out of jobs.

ATLAS is switching to run jobs using WLCG static space token. All Tier  
2s are ready. Jobs writing output to storage via SRM gateway is seen  
as a potential performance bottleneck; US ATLAS is switching its  
catalog system to LFC which is in use by International ATLAS. Still  
have lots of issues because the LFC is designed to following the LCG  
environment, not OSG environment.

2. dq2 end user tools.

David Miller reported trouble with the new dq2-put command. It  
coincided with hardware issues we have on Sun/Mon. We are asking David  
to try again. Also suggested users to use bbcp to transfer data from  
SLAC to CERN.

3. Conditions DB

Rod Walker of TRIUMF is trying access CondDB via Frontier (which  
translate SQL to http request, thus allow using Squid caching). Tried  
at SLAC. The initial result is that we reduced the access time from  
~2300 seconds (via directly SQL to CERN) to ~300 seconds with a cold  
Squid cache (we don't understand why), and to ~38 seconds with a warm  
Squid cache. According to Rod, the initial reaction from ALTAS DB  
group is that this is interesting for Tier 2 to access CondDB at Tier  
1 but will not solve the current problem of DB replication (oracle  
stream) from T0 to T1s.

4. WT2 hardware and infrastructure.

All storage and batch nodes are installed and in service. Wain022 is  
running Solaris 10 update 5.

5. Network monitoring hosts.

Agreed with Les that we would work with Yi-Ting Lee on this when he is  
back.

6. Interactive machine for SLAC-ATLAS users and 1/2 Thumper Disk space

Requests sent in. Asking to prioritized these requests.

7. Xrootd storage and OSG

At the request of US ATLAS and Michael Ernst, OSG is now integrating  
Xrootd and Berkeley SRM into OSG/VDT as a storage system suite,  
similar to dCache. OSG/VDT will provide front line support to Tier 3  
users. A question comes out about how to divide support scope for OSG/ 
VDT storage group and SLAC Xrootd team (and LBNL SRM team). It is not  
clear how much resource we can provide to backup OSG/VDT. We will  
setup a RT queue for OSG storage group to submit requests, and seen  
how much work load we get.

Wei Yang  |  [log in to unmask]  |  650-926-3338(O)