200 recent changes in HPC Web retrieved at 04:18 (Local)

UsnoDifxOsPatch2ChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoDifxOsPatch2. *con...
UsnoDifxPatchers2
Normal Patch Rotation * Mark * Adriana * Abi Last patched by: Mark Last patched date: October 19, 2021 Comments:
UsnoDifxNetworking2
Contents Networking As of this writing the plan is to fold the new correlator into the existing correlator network layout. This will facilitate keeping the two i...
UsnoDifxPatch2DraftChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoDifxPatch2Draft. *...
UsnoMaintenanceLog2
USNO Maintenance Log 2 This log page allows significant maintenance/administration events to be logged for future use. The goal is to record information that migh...
UsnoDifxKVM2
KVM Console/Switchs (jhj 1/15/21) Currently two of the KVM retained from the old correlator are not on the net. These are the KVM in the second rack of SWCs and...
UsnoDifxEnvSensor2
Environment Monitor The environment monitor is positioned to read the temperature and humidity via a sensor mounted above the rack containing the correlator nodes...
UsnoHostAliases2
Host SSH Aliases In root's .bashrc are defined a number of aliases to make it a bit quicker to do commands to a single host. Basically it aliases the host name wi...
UsnoPingDiskless2
Ping Diskless The custom python3 utility ping diskless was originally designed to ping the SWCs to watch them through the reboot cycle. It has evolved such that ...
UsnoDifxNagios2
Nagios Nagios is a watchdog daemon that can be configured to check on various properties of a computer system and issue warnings and/or alarms if one of the prope...
UsnoDifxClientOSInstall2
Client (SWC) Installation The initial client installation was performed using the hard disk drive that came with SWC 001. The host was booted via PXE boot and the...
UsnoDifxLusterOSInstall2
BGFS Installation The BGFS hosts were installed by vendor. They were then modified by us to meet the most pressing requirements (i.e., "critical" and "high" find...
UsnoDifxLogging2
Logging Rsyslog Server 1 runs rsyslogd via the systemd rsyslog.service; the main configuration for the rsyslod is /etc/rsyslog.conf. DHCP Logging DHCPD messages...
UsnoDifxNTP2
Time Service Overview Time services is provided primarily by server 1 using the chronyd daemon. The configuration file for chronyd is /etc/chrony.conf. Service...
UsnoDifxNetworkingDiagram2
Main.JimJacobs 2018 12 11
UsnoDifxBgfsServer2
BGFS File Servers Overview The new correlator is using BEEGFS (bgfs) in place of Lustre to provide a high speed, high capacity file system. The bgfs servers are ...
UsnoDifxComputeNodes2
Compute Nodes Basic System Specs The SWC (SoftWare Correlator) hosts are Dell R640 systems. These have two Intel Xeon Gold 6132 CPUs which run at 2.60 GHz; each ...
USNODifxCorrelator
USNO Correlator Documentation Wiki This Wiki section serves as the primary documentation for the NRAO project to provide a DifX correlator to USNO. It is intentio...
UsnoDifxFringe2
Fringing Host (test cluster only) Overview In addition to the normal correlation work, some other analytical work is done. At the USNO, they have two fringing...
UsnoDifxInfiniband2
Infiniband Switches Overview The correlators use Infiniband (IB) network connections to pass data between the correlator nodes (SWCs) and also with the file serv...
UsnoDifxRADIUS2
RADIUS Service RADIUS is an authentication service often supported by simpler devices such as switches. The servers run a systemd service named radiusd that the ...
UsnoDifxServers2
Admin Servers Introduction Each correlator has two administrative servers, server 1 and server 2. The servers are used to administer the correlator and take no d...
UsnoDifxOverview2
USNO Correlator II Overview Production Correlator The USNO uses a computing cluster built and maintained by NRAO for performing correlations using DiFX. In 2019...
UsnoDifxPatch2Draft
Neo Correlator Patching The patch process for the Neo correlator (installed at USNO on November 2019) is outlined below. A set of "checkboxes" is provided to assi...
UsnoDifxAide2
AIDE AIDE is a program that scans important files in the system and reports any changes in the files relative to the accepted baseline. The security STIG require...
UsnoDifxServerNagiosAck2
Shutting off Nagios Alarms When a nagios problem can't be fixed right away it can get tiresome to have the alarm message coming out every hour or so. Almost the s...
UsnoDifx2-200924
17:38 root@bg mds 1 T ~ # yum install mlnx ofed all Loaded plugins: langpacks, product...
UsnoDifxPtyFix2
Pty Allocation Problem So far, this problem has mostly occurred on server 1 on both clusters, probably because it gets the most login traffic suring maintenance. ...
UsnoDifxServerDebuggingSeLinux2
Debugging SE Linux Both server 1..2 and the BGFS hosts are running SE Linux in targeted mode; the SWCs are not running SE Linux although since the images are host...
UsnoDifxDNS2
Correlator DNS Service Server Configuration Both server 1 and server 2 provide DNS service to the correlator. Server 2 should be considered a backup to server 1....
UsnoDifxSMTP2
Mail Service Overview Since the correlator is effectively a compute device, very little email service is required. The only exception is that the system administ...
UsnoFileTransfer2
File Transfer From an NRAO Host The hosts on either correlator can be reached via the NRAO DNS, file transfer can be initiated from an NRAO host in a pretty stra...
UsnoDoOnHosts2
Do on hosts This python script is designed to execute a command on a set of cluster hosts. It is invoked via the link do on hosts located in /opt/services/bin wh...
UsnoHostStatus2
Host Status Tool The host status tool can be used to summarize important attributes for all hosts in the system. It is invoked by doing host status all on one of...
UsnoDifxOsPatchChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoDifxOsPatch. *cont...
UsnoDifxS1pS1tLink2
The file ~/.ssh/jjacobs s1t.config This is an instance of a user specific file to create the linkage from server 1p to server 1t. It currently hops to usno serv 1...
UsnoDifxInfinibandSoftwareInfo2
Mellanox (Infiniband) Switch Software information * Collected 5/15/20 by Jim Jacobs data m6036 1 standalone: master show version Product name: MLNX OS...
UsnoNodeBootMechanism2
Main.JimJacobs 2020 03 27
UsnoDifxServerDiskLayout2
Disk Layout Server Disk Partitioning The disk layout is shown below as displayed using lsblk. The two disks are partitioned somewhat in parallel although the fir...
UsnoDifxDHCP2
DHCP Overview Server 1 provides DHCP service on the network admin network. The setting for the daemon are in /etc/dhcp/dhcpd.conf. The IP addresses on all of ne...
UsnoDifxTFTP2
Main.JimJacobs 2020 01 23
UsnoVNC2
VNC and X Window Connections To launch an X application, make an ssh tunnel and then launch the X app an it'll appear locally. * ssh X J admin@usno serv 1t ...
Rhel7Stig055Production
This rule requires the installation and continuous execution of a host based intrusion detection system. The preferred package is McAfee but apparently something ...
UsnoRhel7Stig2ProductionChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoRhel7Stig2Productio...
Rhel7Stig001Production
Done, though future fiddling might throw it off.
Rhel7Stig242Production
Pending on firewall implementation.
Rhel7Stig245Production
The STIG requires multifactor access for all privleged accounts; it mentions using two government approved mechanisms (one is CAC) as examples. It's possible that...
Rhel7Stig241Production
This will occur as part of setting up the firewall.
Rhel7Stig239Production
The twoservers do not mount any NFS volumes. The SWCs have two mounts to server 1. We'll have to see if this causes any heartburn when it's enabled on the SWCs.
Rhel7Stig238Production
None of the hosts are currently doing any packet forwarding. On the old cluster the firewall had to be modified to allow packet forwarding to support some of the ...
Rhel7Stig237Production
Xwindows is used for remote administration purposes on server 1 and server 2. It is not installed on the SWCs.
Rhel7Stig236Production
The tftp server package is not installed on the SWCs. On the two servers, the service file is located in /etc/systemd/system/tftp.service and this starts the serv...
Rhel7Stig234Production
The two servers need TFTP server functionality to support diskless bootup. The daemon is invoked with a root, /opt/services/tftpboot, which limits its scope. The ...
Rhel7Stig216Production
Set it to 500 on the servers and at the 1000 limit on the SWCs as I'm worried that there might be a lot of traffic on them.
Rhel7Stig215Production
We'll need to tunnel back to the NRAO to get a clock sync. The SWCs will get their time from server 1.
Rhel7Stig204Production
Apply this one last since it'll make setup a lot harder.
Rhel7Stig190Production
FIPS stuff is on hold right now.
Rhel7Stig189Production
This rule should be revisited as part of firewall setup.
Rhel7Stig187Production
The servers provide SMTP service but act as relays so that alarm messages from within the cluster can propagate outside of the cluster to system administrators, e...
Rhel7Stig186Production
The two servers do allow remote messages over TCP. This allows them to capture syslog messages from the SWCs and other devices on the system. Thus they serve as l...
Rhel7Stig127Production
The config files for audit have changed since the STIG. They are now located in /etc/audit/rules.d though I think they're actually "compiled" into /etc/audit/audi...
Rhel7Stig115Production
Auditting is enabled on the systems and will be tweaked per STIG specs about coverage. The system must have high availability, so having a doomsday switch on audi...
Rhel7Stig112Production
There are a couple of other grub.cfg files located under /opt. These are served up to the diskless systems and are not part of the boot process for the server's t...
Rhel7Stig111Production
This appears to be related to FIPS installation, which we're skipping for the time being.
Rhel7Stig108Production
As soon as we do this one we'll lose the ability to use Radius to the switches, etc. Let's hold off for now.
Rhel7Stig105Production
The hard drives on the servers have a separate partition for /var. I'm not sure that this rule applies to the diskless systems since they have no disks.
Rhel7Stig057Production
The aide program is installed on server {1,2} and the swc diskless image. Cron should run it once a day on the servers. An email message will go out to usno admin...
Rhel7Stig056Production
This rule is moot if McAfee is installed and active; otherwise SELinux needs to be enabled and then configured appropriately.
Rhel7Stig052Production
Mandatory multifactor authentication is likely to be problematic for the cluster both for administration and DiFX usage because both actions require easy login to...
Rhel7Stig051Production
Applying this rule will end up requiring console access to complete a reboot which is not appropriate for either a cluster and for a remotely administrated system...
Rhel7Stig040Production
Made mod using polkit scheme to allow passwordless reboot on the swcs creating /etc/polkit 1/rules.d/51 wheel.rules.
Rhel7Stig038Production
This rule appears to need application hwover, the instructions are such that I'm not sure exactly what should be done.
Rhel7Stig002Production
Server 1 only had config file mods as expected. Server 2 has a mods to /etc/NetworkManager/dispatcher.d/20 chrony; I think a system update did this? The SWCs have...
CHTCSiteVisit
Wiki page to track August 26/27 CHTC site visit to NRAO Date: August 26 27 2019 Locations: SO Auditorium, CV Auditorium(Monday) and ER 245 (Tuesday) Connection In...
UsnoRhel7Stig2ChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic UsnoRhel7Stig2. *conte...
Rhel7Stig245
System is not currently using the sssd functionality.
Rhel7Stig241
This is on hold until the firewall is configured.
Rhel7Stig239
Server 1 only nfs mounts usno serv 1. This mount should be removed after the system is read to be put into production.
Rhel7Stig237
The x windows server is installed and is need to allow remote administration of the system. This needs to be in the ISSO document.
Rhel7Stig236
The commands provided are not appropriate for this system given it's version of RHEL 7.6. Use systemctl status tftp l to see that the tftp daemon is started in a...
Rhel7Stig234
Server 1 has tftpd installed and it's used for booting of the diskless hosts (swc xxx). It is set up to only transfer files located below /opt/services/tftpboot. ...
Rhel7Stig232
I believe that postfix on server 1 is configured to only relay messages from hosts on 10.1.36.* but it's not using, nor does it even show, the parameter described...
Rhel7Stig221
Need to better understand this one.
Rhel7Stig217
Activate firewall once stability is achieved.
Rhel7Stig215
This rule is tied tightly to NTP whereas RHEL is using chrony. This will take some research, probably. Also we'llhave to find a direct, acceptable official clock ...
Rhel7Stig204
Wait until stability.
Rhel7Stig201
Wait for stability.
Rhel7Stig199
Implement after stability reached.
Rhel7Stig192
Do this one last as its annoying during development.
Rhel7Stig191
This one terminates network sessions after 10 minutes of inactivity. Leave this until things are stable.
Rhel7Stig189
This is about setting up the firewall. It can wait a little bit yet.
Rhel7Stig187
There is no expectation that users will receive mail on server 1. It serves as a way to forward mail off of the cluster (e.g., sending notifications back to the s...
Rhel7Stig186
Need to "document" that server 1 aggregates logs for the other hosts in the cluster.
Rhel7Stig127
DId cp /usr/share/doc/audit 2.8.4/rules/30 stig.rules stig.rules= to put these rules into /etc/audit/rules.d. Then restarted service using service auditd restart....
Rhel7Stig120
This can be done but we'll have to find a place to upload them to. Maybe an NRAO site?
Rhel7Stig118
See note for RHEL 07 030210.
Rhel7Stig116
This requirement seems to be aimed at sending audit messages off the machine. However, server 1 doesn't really have anywhere to send them. This feature is more ap...
Rhel7Stig115
The requirement for high availability will need to be documented and some sort of notification upon audit failure will have to be configured.
Rhel7Stig113
Removed the installed telnet server package.
Rhel7Stig108
This one works pretty much as the directions describe. I suggest copying the linux image (vmlinuz...) and the ram disk image (initramfs...) and /boot/efi/EFI/redh...
Rhel7Stig089
Better first search is find / xdev perm 002 type f perm /111 exec ls ld {} \; more since this will only return executable files that are world writable.
Rhel7Stig112
Looks like there is no entry to boot from removable media.
Rhel7Stig111
Most rules had sha256 already. Changed them to sha512.
Rhel7Stig110
It appears that xattr status is given to most of the watched files.
Rhel7Stig109
Installed the aide package and looked at its config file. It appears to have "acl" in most of its rules.
Rhel7Stig107
Either /tmp has to be mounted in its own partition or it has to be a memory resident beastie(?).
Rhel7Stig105
They want the /var to be in a separate filesystem (i.e. partition). Argh!
Rhel7Stig097
Made entry in /etc/fstab: tmpfs /dev/shm tmpfs defaults,rw,nosuid,nodev,noexec 0 0.
Rhel7Stig095
It is mounted outside of /etc/fstab but has nodev option.
Rhel7Stig094
No problem on server * but the swcs will require documented necessity.
Rhel7Stig090
Revisit after enabling selinux.
Rhel7Stig084
The checking logic provided seems to prevent any file sharing except by group which is not really consistent with the collaborative nature of this system's usage....
Rhel7Stig055
This appears to require that a MacAfee HBSS package be installed.
Rhel7Stig031
Edited /etc/login.defs and set PASS_MAX_DAYS to 60
Rhel7Stig029
Edited /etc/login.defs and set PASS_MIN_DAYS 1.
Rhel7Stig064
Edited /etc/yum.conf and added line "clean_requirements_on_remove=1".
Rhel7Stig063
The autofs service is currently disabled.
Rhel7Stig056
This is a configuration issue for SE Linux; defer until SE Linux issue is addressed.
Rhel7Stig053
The rsh server package is not installed.
Rhel7Stig052
Smartcard support is required for this. Not sure, yet, how to handle this.
Rhel7Stig050
Save this one until system is stable.
Rhel7Stig049
The systems are booting under UEFI so this rule does not apply.
Rhel7Stig048
System comes this way it appears.
Rhel7Stig047
This system is RHEL 7.6 and thus this rule is not applicable.
Rhel7Stig046
Edited /etc/ssh/sshd_config and uncommented "HostbasedAuthentication no". This was probably the default, but...
Rhel7Stig044
The gdm package is not installed.
Rhel7Stig043
The gdm package is not installed.
Rhel7Stig042
Edited /etc/login.defs and added line "FAIL_DELAY 4".
Rhel7Stig040
No account is given password free sudo.
Rhel7Stig039
Do this one at the last moment to keep usage reasonable.
Rhel7Stig038
Do this awful thing at the last moment.
Rhel7Stig037
Edited /etc/default/useradd setting "INACTIVE=0".
Rhel7Stig036
Edited /etc/ssh/sshd_config to uncomment "PermitEmptyPasswords no". This was already the default setting, but need to make autior happy : (.
Rhel7Stig035
Rule's query came back without anything of interest.
Rhel7Stig034
In /etc/security/pwquality.conf set minlen to 15.
Rhel7Stig033
Added line "password requisite pam_pwhistory.so use_authtok remember=5 retry=3" to /etc/pam.d/{system auth,password auth} as directed in rule.
Rhel7Stig032
Using "chage M 60 theUser" on pch,ajs,oper,difxmgr to meet this requirement.
Rhel7Stig030
Changed password aging for pch, ajs, difxmgr and oper accouts so that they are 1 rather than zero.
Rhel7Stig028
Performed query and got expected results.
Rhel7Stig027
Executing rule's grep command shows the expected result.
Rhel7Stig026
Verified that only sha512 hashes are allowed using the rule's command.
Rhel7Stig025
Set maxlassrepeat = 4 in /etc/security/pwquality.conf.
Rhel7Stig024
Set maxrepeat to 3 in /etc/security/pwquality.conf.
Rhel7Stig023
Set minclass = 4 in /etc/security/pwquality.conf.
Rhel7Stig022
In /etc/security/pwquality.conf set difok to 8.
Rhel7Stig021
Edited /etc/security/pwquality.conf setting ocredit to 1.
Rhel7Stig017
Doing cat /etc/pam.d/system auth pipe grep pam_pwquality returns password requisite pam_pwquality.so try_first_pass local_users_only retry=3 authtok_type as ...
Rhel7Stig016
Rule command returns "password substack system auth" as required.
Rhel7Stig020
Edited /etc/security/pwquality.conf and set dcredit to 1 to require at least one digit character.
Rhel7Stig019
Edited /etc/security/pwquality.conf and set lcredit to 1 to require at least one uppercase character.
Rhel7Stig018
Edited /etc/security/pwquality.conf and set ucredit to 1 to require at least one uppercase character.
Rhel7Stig015
Implied by 010081.
Rhel7Stig014
The setting org.gnome.desktop.screensaver idle activation enable is deprecated and ignored according to =gsettings".
Rhel7Stig012
Doing yum list installed screen shows that this packages is installed.
Rhel7Stig011
Implied by rule 010070.
Rhel7Stig010
Doing gsettings get org.gnome.desktop.screensaver lock delay returns zero which means that the screen is locked when the sceensaver activates.
Rhel7Stig009
Performed gsettings set org.gnome.desktop.session idle delay 900 to apply the 15 minute idle setting.
Rhel7Stig008
This appears to require the same actions as rule 010060 and meeting that one (which is the case) implies meeting this one.
Rhel7Stig006
This is the default setting which can be demonstrated by doing gsettings get org.gnome.desktop.screensaver lock enabled which returns "true"
Rhel7Stig001
Waiting until the system installation has solidified.
Rhel7Stig005
Gross boiler plate so add this at the end before cloning.
Rhel7Stig004
Gross boiler plate so add this at the end before cloning.
Rhel7Stig003
Gross boiler plate so add this at the end before cloning.
WebStatistics
Statistics for HPC Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: ...
CatchAndRelease
Catch and Release %TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% TL;DR remove an OST from a pool on CV lustr...
UsnoDifxEnvSensor
Environment Monitor The environment monitor is positioned to read the temperature and humidity via a sensor mounted above the rack containing the correlator nodes...
UsnoA7050Interfaces
usno a7050 show interfaces Ethernet1 is up, line protocol is up (connected) Hardware is Ethernet, address is 001c.7318.2adb (bia 001c.7318.2adb) Description: ...
ALMABenchmarking
Points of Contact ALMA Science Tony Remijan aremijan@ ALMA Systems Mike Hatz mhatz@ Background This page establishes a set of benchmarks that can be used...
UsnoDifxOperatingSystem2
Correlator Operating System The all the computing hardware will be running a version of RHEL 7.x. Because of security issues, the installed version will track th...
HPCSupport
GBO / LBO / JAO / NRAO HPC (High Performance Computing) Support Wiki Introduction This wiki is to track open tasks and to collect detailed logs for HPC relate...
WebHome
This is a wiki home for high performance computing at the NRAO. The area is still undergoing organizational changes but content in the Categories section is eith...
UsnoDifxNagios
Nagios We install service software in /opt/services instead of the normal location. This seperates it from the OS install and allows us to re install and/or upgr...
UsnoVNC
Connecting to the USNO Using VNC * Login to usno serv 1 ext and start VNC ssh admin@usno serv 1 ext vncserver * Start VNC on local machine vncviewer via a...
UsnoSshUser
Creating a new SSH user Access to the cluster from the outside is only permitted using ssh with a public key. This page describes how to add a new account as wel...
AutomateLustreClientBuild
Thoughts on automating Lustre Client module builds. * Keep a copy of the current lustre package under /opt/services/lustre client on usno serv 1t. (Had to inst...
SmileyTestChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic SmileyTest. context ...
SmileyTest
Main.JimJacobs 2017 05 23 Checkbox
CheckboxTest
Title One Two Main.JimJacobs 2017 05 15
CheckboxTestChecklistItemState
WARNING! THIS TOPIC IS GENERATED BY System.ChecklistPlugin PLUGIN. DO NOT EDIT THIS TOPIC (except table data)! Back to the checklist topic CheckboxTest. *context...
HeraLibrarian
HERA Librarian software Instructions on configuring the hardware can be found at https://staff.nrao.edu/wiki/bin/view/CIS/Documentation/Herastore01 Installation...
HERA
HERA * HeraLibrarian
FidindirectActivity
Summary of NAASC Lustre FID in direct Activation Activity This page provides a summary of the activity conducted at NAASC on Fri/Sat April 21/22, 2017. %TWISTY{ ...
UsnoDifxMegaRAID
LSI MegaRAID Install The MegaRAID software installs /usr/local but we actually want it in /opt/services. So we make a symlink. $ To install the software, be...
UsnoNodeBootMechanism
Node Boot Mechanism Configure BIOS $ Disable Hyper Threading: Hyper Threading is a very cheap trick to simulate dual CPUs. All it does is create a second ent...
UsnoDifxDHCP
DHCP Install DHCP Retrieve DHCP from http://isc.org/products/DHCP/ The latest release as of2012 06 26is DHCP 4.2.4. Looks like they still can't write a good mak...
LustreRoundRobin
File distribution across OSTs (Applies to Lustre 2.5.3) %TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% # The...
LustreBugABoo
Tracking Lustre Bugs %TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% # A table of bugs we care about Link ...
HPC20170301
HPC Meeting: 2017/03/01 Participants * NRAO: * David Halstead * Jessica Ottey * Patrick Murphy * Mike Hatz * James Robnett * ...
HPCMeetings
Meetings * HPC: 2017/03/01
LustreLessons
%TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% # Key points * Lustre clients require lustre modules, while M...
NaascLustreUpgradeToaster
Naasc Lustre Upgrade 'Toaster' Notes %TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% # What is the toaster? ...
UsnoDifxInstallation
Installing DiFX Quick help To get usage instructions: difxbuild h To get in line documentation printed to your terminal: difxbuild d Introduction This DiFX in...
CasaParallelTaskList
CASA Parallelization Task List Item No. System Element Description Status Prerequisites People Target Cycle Notes 1 Environment Management ...
NagiosOstFullness
Using Nagios to monitor OST capacity %TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% # How to use this plugin...
AnsibledOssBuild
Building an OST using Ansible (Lustre 2.x) %TWISTY{ showlink="Show TOC" hidelink="Hide TOC" showimgright="" hideimgright="" }% # Editing the temp...
JAOpostClientesGotKERNELPANIC
Hi all, SInce last Wednesday (2016 12 07) we at jao started having reports of some jaopost client machines (around 10 in 4 days) that got frozen during Pipeline R...
HPCTroubleshootingRequests
When you log a troubleshooting request, please remember to include relevant logs: 1 MDS log as an attachment 1 OSS log(s) as an attachment 1 Client log(s...
JaoFailedExecutionRepeat
In NRAO RHEL 6.5 image. Execute: /opt/sacm/bin/calPipeIF mous=uid://A001/X2d8/X367 Repeatedly fails with: /usr/bin/xvfb run: line 166: 42615 Segmentation fault ...
NAASC_Lustre_2016-11-22
Description NAASC MDS freezes due to being out of memory. More RAM is installed taking it from 12 GB to 48 GB. On a subsequent reboot, the MDS cannot mount the M...
Number of topics: 200
Page 1 of 3 Next >

See also: rss-small RSS feed, recent changes with 50, 100, 200, 500, 1000 topics, all changes
Topic revision: r3 - 2009-10-19, CarolynWhite
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding NRAO Public Wiki? Send feedback