The muc01...muc05 servers have three home accounts and three internal data disks mounted.
The muc servers muc06...muc12 have one internal data disk each.
Common DFOS tools:
|
| dfos = Data Flow Operations System, the common tool set for DFO |
make
printable
Hardware:
The architecture and hardware has been selected after extensive and careful tests executed in August 2012.
| 7 virtual machines (muc01-muc07), 2 Dell M820 with 32 cores each (muc08, muc09), 1 Dell M820 with 48 cores (muc10), 1 Dell M830 with 56 cores (muc11), 1 Dell M830 (muc12). The latter machine is also installed as a virtual machine but 1:1 on the mentioned physical blade. | |
|
Data disks: external storage |
|
| Memory: muc01-muc07: 64 GB; muc08: 128 GB; muc09, muc10, muc12: 512 GB; muc11: 2048 GB | |
| Home: internal storage, 0.9 TB, cross-mounted from OTS home server | |
| Operating system: 64bit | |
|
All servers are called 'muc<nn>' where nn starts
with 01 |
|
| muc01…muc04: | three accounts per UT (low-data volume instruments) |
| muc05: | three accounts VLTI, plus pre-imaging (low-data volume instruments) |
| muc06, muc07: | survey cameras (muc06: ocam, muc07: vircam) |
| muc08: | science processing (phoenix) (accounts sciproc (for UVES), xshooter_ph and giraffe_ph as of 2015-06) |
| muc09: | muse and muse_ph |
| muc10: | muse_ph2 |
| muc11: | muse_ph3; espresso |
| muc12: | matisse |
| per account: | 1 internal disk, with dfos software, pipelines etc. 1 external disk, with data and long-term memory |
| storage: | external disk on 'fujisan3' and 'fujisan4' servers |
[The super-computer next door is called Super-MUC.]
Note that the assignment of instrument accounts to muc blades refers to the instrument-telescope association in winter 2013. No attempt is made to re-arrange accounts if an instrument is physically moved on Paranal.
Sketch of architecture
|
The muc01...muc05 servers have three home accounts and three internal data disks mounted. The muc servers muc06...muc12 have one internal data disk each. |
Technology
The muc systems muc01...muc07 have 12 Intel cores, arranged in 2 CPUs with 6 cores each. The cores are 'hyperthreaded', which means they have two 'virtual cores' each. This is why e.g. ganglia reports 24 cores for each muc. The condor setup is very conservative and assigns 8 cores for condor processing, leaving the others for interactive and crontab jobs.
muc08 and muc09 have 32 cores each. muc10 has 48 cores, muc11 and muc12 have 56 cores.
For an overview of the basic parameters of the systems, go to http://qc-ganglia.hq.eso.org/ganglia/?c=qcXX%2BdfoXX&h=muc02.hq.eso.org (replace muc02 by any other muc blade).
Click
here for a picture of the 8 muc blades in the data centre, starting at left with muc01 (meanwhile we have 12 mucs).
The bigger blade at the very right is muc08.
Accounts.
| muc01 | muc02 | muc03 | muc04 | muc05 | muc06 | muc07 |
|
muc09 | muc10 | muc11 | muc12 | muc01 | muc02 | muc05 | ||||||||||||||||||||||
| accounts | crires | fors2 | kmos | giraffe | uves | xshooter | isaac | sphere | vimos | visir | hawki | naco2 | sinfoni | amber | midi2 | gravity | pionier | ocam | vircam | sciproc | xshooter_ph* | giraffe_ph* | more...* | muse | muse_ph* | muse_ph2* | muse_ph3* | espresso | matisse | fors1 | qc_shift | preimg | ||||
| operational | no | yes | yes | yes | yes | yes | no | yes | no | yes | yes | no | no | no | no | yes | yes | yes | yes | never | never | never | never | yes | never | never | never | yes | yes | no | never | F | Vr | |||
Support.
The muc blades fall into the Level A support (operations-critical). Alerts, emails or tickets are investigated by IT (if marked by URGENT: wothin 2 hours, otherwise within 4 working days).
Backup scheme.
The muc blades are all backed up. The homes, which are not on the mucXX machines, are backed up as part of the backups of the otshsr-vip host. This is the data disk back-up (email from IT, 2017-03-27)
muc01:
/dataqc/kmos
/dataqc/fors1
/dataqc/fors2
/dataqc/crires
muc02:
/dataqc/uves
/dataqc/giraffe
/dataqc/xshooter
muc03:
/dataqc/sphere
/dataqc/vimos
/dataqc/isaac
/dataqc/visir
muc04:
/dataqc/naco2
/dataqc/sinfoni
/dataqc/hawki
muc05:
/dataqc/pionier
/dataqc/midi2_and_gravity
/dataqc/amber
/fdataqc/preimg
muc06:
/dataqc/ocam
muc07:
/dataqc/vircam
muc08
/dataqc/sciproc
muc09
/diska
/diskb
muc10
/diska
/diskb
muc11
/diska
Backup strategy for all MUC hosts:
Full on 2nd Wednesday, weekly differential on Wednesdays, daily incremental
|
| Last update: April 26, 2021 by rhanusch |