[lustre-discuss] OST not being used
Ms. Megan Larko
dobsonunit at gmail.com
Mon Jun 21 14:05:52 PDT 2021
You did not indicate which version of Lustre you are using. FYI it can be
useful to aiding you in your Lustre queries.
You show your command "lfs setstripe --stripe-index 7 myfile.dat". The
Lustre Operations Manual ( https://doc.lustre.org/lustre_manual.xhtml
) Section 40.1.1 "Synopsis: indicates that stripe-index starts counting at
zero. My reading of the Manual indicates that starting at zero and using
a default stripe count of one might correctly put the file on to obd index
8. Depending upon whether or not obdidx starts at zero or one, eight might
possibly be the correct result. Did you try using a stripe-index of 6 to
see if the resulting stripe count of one file is then on obdidx 7?
If the OST is not usable then the command "lctl dl" will indicate that (as
does the command you used for active OST devices. Your info does seem to
indicate that the OST 7 is okay.
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