Hi, >>Back at SC16 I was told that GPFS 4.2.3.x would remove the “a sub-block is 1/32nd of the block size” restriction. However, I have installed GPFS 4.2.3.1 on my test cluster and in the man page for mmcrfs I still see: >>So has the restriction been removed? If not, is there an update on which version of GPFS will remove it? If so, can the documentation be updated to reflect the change and how to take advantage of it? Thanks…
Based on the current plan, this “a sub-block is 1/32nd of the block size” restriction will be removed in the upcoming GPFS version 4.2.4 (Please NOTE: Support for >32 subblocks per block may subject to be delayed based on internal qualification/validation efforts). Regards, -Kums From: "Buterbaugh, Kevin L" <[email protected]> To: gpfsug main discussion list <[email protected]> Date: 06/14/2017 12:12 PM Subject: [gpfsug-discuss] 4.2.3.x and sub-block size Sent by: [email protected] Hi All, Back at SC16 I was told that GPFS 4.2.3.x would remove the “a sub-block is 1/32nd of the block size” restriction. However, I have installed GPFS 4.2.3.1 on my test cluster and in the man page for mmcrfs I still see: 2. The GPFS block size determines: * The minimum disk space allocation unit. The minimum amount of space that file data can occupy is a sub‐block. A sub‐block is 1/32 of the block size. So has the restriction been removed? If not, is there an update on which version of GPFS will remove it? If so, can the documentation be updated to reflect the change and how to take advantage of it? Thanks… Kevin ? Kevin Buterbaugh - Senior System Administrator Vanderbilt University - Advanced Computing Center for Research and Education [email protected] - (615)875-9633 _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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