Introduction

May was filled to the brim with beamtime, and HE is starting to heat up.

PMPS V2.0.0 on the K-line

  • PMPS V2.0.0 is now installed on all the K line PLCs , TMO and RIX hutches.
  • Same as V1.0.0 on the L line, the eV ranges has been expanded to 32 bits instead of 16.
  • The way transmission can be captured has now been changed. It's no longer a percentage. A decimal points are now accepted, with value of 1 indicating full transmission.
  • In the Preemptive requests tab, the device names are now displayed along with the hex code request ID.
  • And finally, no more milliseconds duration to enter for the bypass duration. Fast fault duration is determined by an "expiration" end date and time. 
    1. You can either select or enter the desired expiration in the calendar widget.
    2. Press enter. Now you can see the date in the bypass end readback.
    3. Click on activate. Now you will see the current date and time in the bypass start readback.


Attenuator Seminar

Margaret Ghaly and Ken Lauer presented a control system seminar on the LCLS attenuation systems, including both gas and solid. You can check it out here:
Gas and Solid Attenuators Control System Seminar

DREAM Controls Design Review

ECS hosted a controls design review for the DREAM endstation for TMO. The results are in and things look good. Scheduling is still being finalized for a optimal delivery date for DREAM.
DREAM Controls FDR

Hutch Python

  • The LCLS-II DAQ is now controllable via hutch python. This has been deployed in RIX and TMO.
  • The RIX hutch python has been outfitted with a mono grating/vernier scanning plan.


FEE Imager Camera Debug Page

We've added a helpful page for debugging FEE Camera issues. Check it out: FEE Imager Camera Debug


RIX Optics

Three mirrors in the RIX hutch took beam for the first time this month: MR2K2: 3 axis Flat mirror, MR3K2 & MR4K2: 5 axis KBO focusing mirrors. MR2K2 was installed on the beam line and taking beam in less than 2 weeks?! 


camViewer

A new feature was added to the camViewer script by Spencer, Aalayah I which allows a user to enable or disable a camera ioc by running the script with new arguments:

camViewer -c <camviewer name> -e  enables the ioc

camViewer -c <camviewer name> -d  disables the ioc


ioctool

A new script written by Spencer, Aalayah I that allows one to find information about and useful directories associated with an ioc:

usage: ioctool <ioc>|<pv> [option]
Script that returns information about an ioc given its name or a PV it hosts
default option is 'name', list of options:
name : returns the name of the ioc
dir : returns the directory the ioc is running from
cddir : open the directory the ioc is running from (start with "source" before calling script with this option)
cfg : returns the file name of the ioc .cfg (or st.cmd)
less : opens the ioc .cfg (or st.cmd) in less
data : returns the path of the appropriate iocData directory if it exists
telnet : starts a telnet session with the ioc

*If additional features are desired, a JIRA ticket should be created here: Submit a ticket

IT

LAS Migration

The team was able to successfully migrate from a 254 address space to a1024 one.

This will allow the Laser team deploy more devices in the on-growing infrastructure.

LASER LAB Setup

The team was able to successfully deploy a network scheme, which allows communication with the MODS table.

This scheme was first introduced in TMO, and will continue to be used for future similar projects.

BATCH NODES

The FEH Batch Nodes psana15* and psana16* nodes were moved from the FEH Mezzanine to SRCF.

This allows IB connection to the ANA FS, which increases the analysis performance for the users.

LDAP Updates

In order to facilitate the interaction with the LDAP database, the team proposed the creation of a a new group, ps-ldap, which allows both access and authorization.

This reduces the complexity of the old current methodology.

DSS Nodes

The hutches: CXI, MEC, and XCS were updated to use a 10G ethernet connection instead of infiniband.

This change allows for direct communication to the SRCF-DRP cluster.

NEH Network Cluster

There are 2 new 10G Optical Switches in the NEH datacenter.  A new setup was designed to increase throughput,  scalability and resilience to all LCLS-I control rooms and hutches.  New connection have been made in MFX, XCS, XRT, XPP, Overflow Room, and Building 901.  There are still some minor issues the team is working on to successfully migrate the remaining connections.

ChemRIX 

The network for CHEMRix has been successfully established; it is part of the RIX stack.

The team also installed a few servers to deploy some control infrastructure.

PSNFSLustre

Due to a few issues with accessing the calib directories in the hutches and SRCF-DRP cluster, the service was split between the DSS and SRCF-DRP nodes.

This division separates the traffic, so that any issues in the DSS nodes doesn’t affect the SRCF-DRP nodes, and vice versa.

WEKA

During the month of May, there were some unexpected issues with the Weka Cluster that provides the NFS service.

As a result, it was decided, to use an older NFS interface group that proved to be stable.  Unfortunately, performance and group limitation is expected.

In August, the Weka team will upgrade the cluster, and the team will move to the NFS-Ganesha interface group.

This upgrade will, once again, improve performance and remove the 16 group limitation.


  • No labels