See if this helps
https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.1/com.ibm.spectrum.scale.v5r01.doc/bl1adm_mmaddcallback.htm
Best Regards, Eric
Hi All,
So I’m _still_ reading about and testing various policies for file placement
and migration on our test cluster (which is now running GPFS 5).
On page 392 of the GPFS 5.0.0 Administration Guide it says:
To add a callback, run this command. The following command is on one line:
That comment in the Administration guide is a legacy comment when Metadata
sub-block size was restricted to 1/32 of the Metadata block size. In the past,
creating large Metadata block sizes also meant large sub-blocks and hence large
directory blocks which wasted a lot of space.
From: on
Hi All,
So I was just reading the GPFS 5.0.0 Administration Guide (yes, I actually do
look at the documentation even if it seems sometimes that I don’t!) for some
other information and happened to come across this at the bottom of page 358:
The --metadata-block-size flag on the mmcrfs command
