Simple functional testing can be done on a small system with as little as one Linux node and one disk.
Personally, I do a lot of testing on a several years old laptop running Linux. My test gpfs file system doesn't even use a real disk partition! Just some data files I initialized with dd if=/dev/zero ... (This is not officially supported, blah, blah, blah...) [root@bog-wifi cmvc]# mmlsnsd -X Disk name NSD volume ID Device Devtype Node name Remarks --------------------------------------------------------------------------------------------------- y1 C0A8015D57586A5E /vds/y1 file bog-wifi.lan.makaplan.us server node y2 C0A8015D57586A5F /vds/y2 file bog-wifi.lan.makaplan.us server node y3 C0A8015D575EF0A3 /vds/y3 file bog-wifi.lan.makaplan.us server node [root@bog-wifi cmvc]# ls -ld /vds/y? -rw-r--r--. 1 root root 536870912 Oct 4 12:16 /vds/y1 -rw-r--r--. 1 root root 536870912 Oct 3 10:39 /vds/y2 -rw-r--r--. 1 root root 801000000 Sep 29 18:54 /vds/y3 [root@bog-wifi cmvc]# df -T /vds Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/mapper/rhelw_bog--wifi-root ext4 183862728 42118120 132381768 25% /
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