Table of contents
- 1. 2013 June 4
- 2. 2013 June 07
- 2.1.1. LBA:
- 2.1.2. HBA:
- 2.1.3. Report from Henri Muelman at ASTRON
- 3. 2013 June 17
- 4. 2013 June 25
- 4.1.1. 1st day of maintenance visit
2013 June 4
One disc in lofarB1 broke apparently late on June 2nd, disk was replaced by Effelsberg personel, computer is offline. (OS needs to be re-installed.)
2013 June 07
JMA
LBA:
RCUs 70 and 106 are broekn (flat response as if lying down)
RCU 74 has weird spectrum
HBA:
RCUs 54,55 have bad spectra
Report from Henri Muelman at ASTRON
2013 June 17
lofarB1 has been re-installed on June 14th.
During the re-install it happened that the ethernet-interfaces were assigned incorrectly: one of the (unused) 10 GBit interfaces was configured as eth1, but as it isn't connected to the LOFAR-switch it cannot be used for data recording.
The correct assignment is:
eth0 (first 1 GBit): HWaddr=00:19:99:ba:42:ca
eth1 (second 1 GBit): HWaddr=00:19:99:ba:42:cb
Both 10 GBit interfaces (HWaddr=00:19:99:bc:7e:64 and HWaddr=00:19:99:bc:7e:65) are currently unused.
2013 June 25
1st day of maintenance visit
Henri Meulman from ASTRON visited, Klaus Schlich, Andreas Horneffer, and James Anderson helped with maintenance.
IIRC (meaning I may have missed stuff, AH) the following was done:
- replaced one HBA FE module (tile 54 (RCUs 108/109), element 9)
- tightend several connectors in HBA tiles (among others in tile 9 (RCUs 18/19), element 15)
- removed corrosion from several connectors in HBA tiles (among others: tile 9 (RCUs 18/19), element 16)
- taped up LBA cables to prevent (more) water from getting into the cables: RCUs 150/151 (LBA 75), RCUs 108/109 (LBA 54)
