[16] in Sysdev statistics
Locker Hours statistics
daemon@ATHENA.MIT.EDU (lwvanels@Athena.MIT.EDU)
Tue Jan 7 11:00:28 1992
From: lwvanels@Athena.MIT.EDU
Date: Tue, 7 Jan 92 11:00:22 -0500
To: sysd-stats-mtg@brennin.LOCAL
Reply-To: lwvanels@mit.edu
These statistics are for about the last three days in November and all of
December:
------------------------------------------------------------------------------
File Server Availablility Statistics
Server Up Down Net % up Lockers LHU % LHU
aphrodite 824.00 3.00 0.00 99.64% 2445 7160 0.37%
atlas 823.33 3.67 0.00 99.56% 2782 10262 0.44%
cyrus 824.83 2.17 0.00 99.74% 1673 3643 0.26%
hecate 823.17 3.83 0.00 99.54% 1435 5497 0.46%
odysseus 826.25 0.75 0.00 99.91% 851 670 0.09%
rodan 826.75 0.25 0.00 99.97% 66 16 0.04%
talos 816.83 10.17 0.00 98.77% 1269 18628 1.58%
themis 823.92 3.08 0.00 99.63% 1731 5375 0.37%
Total Locker Unvailability: 0.50%
------------------------------------------------------------------------------
Server - self-explanatory
up - number of hours the server was nfs-pingable
down - number of hours the server was not nfs-pingable, but
reachable through the network from the NOC
net - number of hours the server was unreachable from
the NOC
% up - percentage of the time server was in the "up" state
lockers - number of lockers on the server at the last
sampling time (in this case, December 31)
LHU - locker hours unavailable - this is basically just
down * lockers, taking into account that the number
of lockers on a server changes over time
% LHU - this is 100*LHU/TLH (Total Locker Hours on that server)
Total locker unavailability is the total locker unavailability across
all servers.
How the numbers are taken:
NOC pings the selected NFS servers once every five minutes
and records the results. When the results are compiled,
each sample represents its five minute interval.
For these samplings, unfortunately, the program wasn't configured quite
correctly on the NOC and the "net" statistic was unavailable. So anything
that would have been "net" shows up in "down" for this month.
