Sherlock changelog

www.sherlock.stanford.edu

timestamp1677204000000

SRCF is expanding

by Kilian Cavalotti, Technical Lead & Architect, HPC

In order to bring up a new building that will increase data center capacity, a full SRCF power shutdown is planned for late June 2023. It’s expected to last about a week, and Sherlock will be unavailable during that time.

SRCF is expanding

timestamp1612549200000

Tracking NFS problems down to the SFP level

by Kilian Cavalotti

When NFS problems turn out to be... not NFS problems at all.

Tracking NFS problems down to the SFP level

timestamp1586876640001

Sherlock is hard at work against COVID-19

by Kilian Cavalotti

About a month ago, we announced that we were dedicating a portion of Sherlock's computing resources to research projects around COVID-19. Since then, more than 15 PIs and research groups have reached out to share their projects, and...

timestamp1575415800001

Adventures in storage

by Kilian Cavalotti

_This is part of our blog series about behind-the-scenes things we do on a regular basis on Sherlock, to keep it up and running in the best possible conditions for our users. Now that Sherlock's old storage system has been retired, we...

timestamp1571088180001

Next scheduled maintenance: Oct. 16

by Kilian Cavalotti

In order to prepare future improvements of the parallel /scratch file system, as well as performing some required work on the scheduler, Sherlock will not be available during the following times: Wednesday, October 16th, 2019 - from 8...

timestamp1556307720001

When setting an environment variable gives you a 40x speedup

by Kilian Cavalotti

Today, we'd like to share some of our recent work on Sherlock that allowed a pretty significant speedup when listing files in directories with a lot of entries. > Unlike our usual announcements, this post is more of a behind-the-scenes...

When setting an environment variable gives you a 40x speedup

timestamp1548202620001

Next scheduled maintenance: Feb. 5

by Kilian Cavalotti

Sherlock will not be available on Tuesday, February 5th, 2019 from 8:00am to 6:00pm. System maintenance and upgrades will be performed during this time. Access to Sherlock will be unavailable, logins will be disabled and jobs won't run...

timestamp1542223980001

Next scheduled maintenance: Nov. 28

by Kilian Cavalotti

Sherlock will not be available on Wednesday, November 28th, 2018 from 8:00am to 6:00pm. System maintenance and upgrades will be performed during this time. Access to Sherlock will be unavailable, logins will be disabled and jobs won't...

timestamp1541457360001

Persistent processes on Sherlock

by Kilian Cavalotti

There are many cases where having a persistent process (or service) running alongside computing jobs is of great benefit. For instance, when data is stored in a database format to allow for highly efficient queries, jobs that want to...