Georgia Advanced Computing Resource Center
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Aug 22 outage
"W" means "don't know When this task will be done"
Soon: /etc/motd on pcluster, zcluster
Sometime Tuesday: message to users
Wednesday:
2 PM: VM snapshots
3 PM:
disable logins pcluster
disable logins zcluster (except for jkissing, students)
kick users off pcluster
kick users off zcluster?
drain all nodes or queues, pcluster
disable all queues except somedevq, zcluster
kill all jobs pcluster
kill all jobs zcluster
do GE jobs testing MPI and storage I/O throughput
CC to use fsr15 for iozone
ST to use fsr12 for MPI/NAMD
PB to use fsr7 for dumb I/O
stop execd on all nodes, zcluster
shut down racks 8,9,10,11
4 PM:
CC reconfigs NICs/LAGs on storage units
PB modify PanFS blksize on remaining nodes
PB shut down VMs
shut down 3070s
shut down Panasas
connect ESX IPMI cat5
W: "final rsyncs" of /db, /usr/local
W: Curtis reconfig storage unit NICs/LAGs
W: PanFS 16K blksize on remaining nodes and zcluster.rcc
by 5PM:
we tell NEG "go ahead"
CC recable storage unit cat5, and work with Brian M on switch port configs
probably between 9 and 12PM, NEG finishes
**** AFTER ******
"Midnight" (when NEG is done):
power up 3070s
power up Panasas
power up ESX servers and VMs
start final rsyncs
power up racks 8,9,10,11
"Morning" (starting by 8AM)=======================================================
panasas OS upgrade
switch and test /db, /usr/local mounts on the zcluster
do GE jobs testing MPI and storage I/O throughput
enable Panasas jumbo frames and reboot Panasas
VMWare updates
W: GE upgrade
W: yum updates of nodes
W: yum update of zhead
W: update FW on Dells
W: move some rack15 nodes to rack 16?
W: reinstall rack11?
W: thumper upgrades
W: rccstor upgrades
morning W: VMware updates
switch and test NFS mounts on pcluster W: upgrade PGI compiler reenable queues on zcluster resume queues on pcluster enable logins pcluster enable logins zcluster email users that outage is over contact Lab Storage users about their mounts