1. Depending on the outcome of the pre-tests we will chose SLC4 if possible,
otherwise go back to SLC3.
2. ssh access without password between all nodes
3 afs access
4 1. IP port range - to be verified if this is the same for SLC4:
- execute the following command
cat /proc/sys/net/ipv4/ip_local_port_range
Currently on SLC3 the output is: 32768 61000
This is ok for us.
5 Max number of file descriptors per OS:
**- to be verified if this is the same for SLC4:**
- execute
cat /proc/sys/fs/file-max
Currently on SLC3 the output is:
52345
This is ok for us.
6 Max number of file descriptors per process
**- to be verified if this is the same for SLC4:*
- execute in bash: > ulimit -n
or in tcsh: > limit descriptors
Currently on SLC3 the output is: 1024 . This should be set to 8196.
7. there is no cleanup of /tmp but monitoring and email alarm if it gets low on
a node
8. all nodes are time synchronized via ntp
9. The system should be newly installed before the tests (be sure about cleanup
from servers, daemons etc. installed by previous users)
10. No automatic updates must be performed. Necessary updates can be scheduled
for a fixed time/interval to be agreed upon. Details need to be discussed.
11. all nodes are dual processors at least 2.4 GHz and 1 GByte memory
The HLT image will be a complete copy of the installation in Atlas point1. It is
30 GBytes.* We want to avoid having to build a custom image.
It is agreed that we will get at least 60 GBytes local disk space per node
12. It was agreed that the installation of the HLT image in a similar way as
last year by LST (Hegoi and Haimo) via BitTorrent or Tree RSYNCwas accepted for
this year too. Root access for one person for this purpose can be granted.
13. In addition to the distribution of the HLT image, there is still the option
to distribute the tdaq software via RPMs like ist was done last year.
We suggest to use it for the case that we will have the nodes installed with
SLC4:
Andrei has build a native version of tdaq-01-06-02 on SLC4 (no HLT and offline
sw). This could then be distributed and used completely independently from the
'normal' tests. Timing could be measured and compared with the emulated version.
14. Python version 2.2.3 installed
15. system returns long hostnames for the node names
16. Directories and Account
all directories should give read and execute access to all enabled accounts
/pool/online belonging to the atlonl account; writable only by atlonl - to
be used for all online related tests
/pool/hlt belonging to the effuser account; writable only by effuser
- to be used for ef related tests: Infrastructure and HLT-S tests
/pool/tdaq belonging to the atlonl account; writble only by atlonl -
only for the tdaq release
/pool/users writable by all enabled users, so everyone can created his/her
/pool/users/myname directory
There are enabled user accounts as it was communicated to the owners
14. Monitoring of the farm and of the network
- lemon monitoring system from IT basically as last year for general node
monitoring
- tdaq farm tools as used in point1
- network monitoring: to be clarified