[Halld-offline] Outage Alert: move of /work/halld and /work/halld2, Wed. Nov. 29, 9 am to 10 am
marki at jlab.org
Tue Nov 28 10:47:40 EST 2017
We are scheduled to make the move of our work space from a Lustre-based
system to a ZFS file system. This will happen tomorrow (Wednesday,
November 29) starting at 9 am. The move should take about an hour.
N. B.: *during this time, you will not be able to write to the Hall D
work disks*. Reading may be intermittent as well.
Some notes on the new configuration:
Both /work/halld and /work/halld2 will be on the same partition. The old
/work/halld2 will actually appear as a new directory,
/work/halld/halld2. A merge of the two systems is not a practical
option. There will be a soft link, /work/halld2 pointing to the new
/work/halld/halld2 directory, so legacy scripts should work.
Since there will be no distinction in the underlying hardware for the
old /work/halld and /work/halld2, there is no more need to distinguish
how they should be used. Small files and SQLite files are OK anywhere on
the new work disk.
To reduce future confusion, you may want to move your files out of
/work/halld/halld2, but that is not required at present.
Any scripts that use
/lustre/expphy/work/halld or /v/lustre2/expphy/work/halld
or that use
will break. In other words, the server-specific directory names will
change (as they must).
Let me know if there are any questions or objections to this schedule.
Mark Ito, marki at jlab.org, (757)269-5295
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