Ako ti je kolega slozio Debian(Ubuntu), onda ce ti data scrubbing automatski radi, to je recimo na aplikacijskom dijelu gdje svaki puta periodicki(svaki mjesec kod mene) pregledava podatke.
U logovima ce ti biti nesto ovakvo:
[3397738.817937] md: data-check of RAID array md0
[3397738.817940] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
[3397738.817942] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for data-check.
[3397738.817946] md: using 128k window, over a total of 390623096 blocks.
[3397738.888376] md: delaying data-check of md1 until md0 has finished (they share one or more physical units)
[3397738.900808] md: data-check of RAID array md3
[3397738.900811] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
[3397738.900813] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for data-check.
[3397738.900817] md: using 128k window, over a total of 1953506816 blocks.
[3400732.658784] md: md0: data-check done.
[3400732.672187] md: data-check of RAID array md1
[3400732.672190] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
[3400732.672192] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for data-check.
[3400732.672195] md: using 128k window, over a total of 584959864 blocks.
[3406763.378247] md: md1: data-check done.
[3418333.569744] md: md3: data-check done.