Tags:
create new tag
view all tags

| Upgrade of T3 Storage -- 13. 09. 2018 NinaLoktionova
Since August we've put into production 4 new storage servers as a replacement of old hardware and enhancement of the dcache storage.

So that /pnfs space is currently about 1.2PB.

|

Monitoring

Overview of PSI Tier3 fileservers Overview of PSI Tier3 services Overview of PSI Tier3 workers

Batch jobs (queuing system)

Current queue / accounting

Number of running and queued jobs:


Ganglia WN page

Storage

/pnfs dir

Links:

Show storage space graphs for

/pnfs dir I/O queues

  • regular I/O queue movers = dcap/gsidcap/LAN xrootd movers (heavy random IO for internal analysis) ; MAX 100 ACTIVE movers per file server, others will get QUEUED
  • wan I/O queue movers = SRM/gridftp movers (transfers of whole files also from outside) ; MAX 2 ACTIVE movers per file server, others will get QUEUED
  • xrootd I/O queue movers = WAN xrootd movers ; MAX 2 ACTIVE movers per file server, others will get QUEUED
  • To check by CLI the I/O queues run from a UI watch -n 1 -d  lynx --dump --width=200 'http://t3dcachedb:2288/queueInfo' e.g. if your jobs are not progressing it might be due to a file server with too many queued movers ; in this case you can inform by email the T3 users ( the T3 admins will get it too )


/mnt/t3nfs01/data01/{shome,swshare} dirs NEW

User Space Report

Networking and File Transfers (+ PhEDEx)

Links:

Plotting interval:


Availability reports

These tests are run by the centralized Grid monitoring services and they determine whether the T3 or the T2 are considered to be working correctly:

Edit | Attach | Watch | Print version | History: r116 < r115 < r114 < r113 < r112 | Backlinks | Raw View | Raw edit | More topic actions
Topic revision: r116 - 2018-08-23 - NinaLoktionova
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © 2008-2018 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback