ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:	Sat Mar 29 20:13:17 2025
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If you obtain the 'unable to connect' from one, or more, of the FEE64s try the following procedures before power-cycling/rebooting all of the FEE64s: 1) 'unable to connect' whilst DAQ is going using the Merger https://elog.ph.ed.ac.uk/AIDA/303 2) determine whether multiple FEE64s are unable to connect aidas1> ping nnaida1 PING nnaida1 (10.1.1.1) 56(84) bytes of data. 64 bytes from nnaida1 (10.1.1.1): icmp_seq=1 ttl=64 time=2.81 ms 64 bytes from nnaida1 (10.1.1.1): icmp_seq=2 ttl=64 time=2.81 ms 64 bytes from nnaida1 (10.1.1.1): icmp_seq=3 ttl=64 time=2.80 ms ^C --- nnaida1 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2029ms rtt min/avg/max/mdev = 2.807/2.812/2.817/0.061 ms aidas1> ping nnaida2 PING nnaida2 (10.1.1.2) 56(84) bytes of data. 64 bytes from nnaida2 (10.1.1.2): icmp_seq=1 ttl=64 time=2.87 ms 64 bytes from nnaida2 (10.1.1.2): icmp_seq=2 ttl=64 time=2.81 ms 64 bytes from nnaida2 (10.1.1.2): icmp_seq=3 ttl=64 time=2.83 ms 64 bytes from nnaida2 (10.1.1.2): icmp_seq=4 ttl=64 time=2.81 ms ^C --- nnaida2 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3350ms rtt min/avg/max/mdev = 2.810/2.833/2.874/0.069 ms : : etc If you find that you are unable to ping a group (or groups) of 8x FEE64s it is probable that the issue is a fuse failure(s) in the USB-controlled ac mains relay. It will be necessary to replace the fuse(s) and perform a cold start of the FEE64s https://elog.ph.ed.ac.uk/AIDA/418 3) If you are able to ping all FEE64s telnet to the FEE64 you are unable to connect to, login as root, and issue a reboot command aidas1> telnet nnaida2 Trying 10.1.1.2... Connected to nnaida2. Escape character is '^]'. Linux 2.6.31 (localhost) (08:23 on Thursday, 01 November 2018) login: root Password: Last login: Mon May 23 16:02:30 from myserver -bash-3.2# ls a.out ld_aidamem.csh xaida -bash-3.2# ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 Oct28 ? 00:00:07 init [3] root 2 0 0 Oct28 ? 00:00:00 [kthreadd] root 3 2 0 Oct28 ? 00:00:00 [ksoftirqd/0] root 4 2 0 Oct28 ? 00:00:00 [watchdog/0] root 5 2 0 Oct28 ? 00:00:00 [events/0] root 6 2 0 Oct28 ? 00:00:00 [khelper] root 7 2 0 Oct28 ? 00:00:00 [async/mgr] root 8 2 0 Oct28 ? 00:00:00 [kblockd/0] root 9 2 0 Oct28 ? 00:00:00 [kseriod] root 10 2 0 Oct28 ? 00:00:00 [khungtaskd] root 11 2 0 Oct28 ? 00:00:00 [pdflush] root 12 2 0 Oct28 ? 00:00:00 [pdflush] root 13 2 0 Oct28 ? 00:00:00 [kswapd0] root 14 2 0 Oct28 ? 00:00:00 [aio/0] root 15 2 0 Oct28 ? 00:00:00 [nfsiod] root 20 2 0 Oct28 ? 00:00:00 [81400400.hd-xps] root 21 2 0 Oct28 ? 00:00:00 [81400000.xps-sp] root 22 2 0 Oct28 ? 00:00:00 [kpsmoused] root 25 2 0 Oct28 ? 00:00:00 [rpciod/0] root 54 1 0 Oct28 ? 00:00:00 /sbin/udevd -d root 226 1 0 Oct28 ? 00:00:00 syslogd -m 0 root 229 1 0 Oct28 ? 00:00:00 klogd -x root 259 1 0 Oct28 ? 00:00:00 rpcbind root 275 1 0 Oct28 ? 00:00:00 xinetd -stayalive -pidfile /var/ root 377 1 98 Oct28 ? 3-22:18:16 ./AidaExecV8 root 392 1 0 Oct28 ttyS0 00:00:00 /sbin/mingetty --noclear console root 404 275 0 08:23 ? 00:00:00 in.telnetd: myserver root 405 404 0 08:23 ? 00:00:00 login -- root root 406 405 1 08:23 ttyp0 00:00:00 -bash root 427 406 6 08:23 ttyp0 00:00:00 ps -ef -bash-3.2# reboot Broadcast message from root (ttyp0) (Thu Nov 1 08:25:20 2018): The system is going down for reboot NOW! -bash-3.2# Connection closed by foreign host. Wait 5 minutes for the filesystem to be mounted and the FEE64 boot sequence to complete. Switch to Desktop 1 and re-select 'Data Acquisition Run Control' tab and select Update. The status of the FEE64 you were unable to connect to should now 'undefined'. Follow cold start sequence steps 7-10 and 15 https://elog.ph.ed.ac.uk/AIDA/418 Encoding: HTML ELCode plain Suppress Email notification

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