Je tam pocitadlo eventu, ktere se zapisuje do superbloku. Vsimni si na vypisu kernel logu pri startu: nahore je 45 eventu a po spusteni pole se pocitadlo inkrementuje.
md: raid1 personality registered as nr 3
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
[events: 00000045]
[events: 00000045]
md: autorun ...
md: considering hdc1 ...
md: adding hdc1 ...
md: adding hda1 ...
md: created md0
md: bind<hda1,1>
md: bind<hdc1,2>
md: running: <hdc1><hda1>
md: hdc1's event counter: 00000045
md: hda1's event counter: 00000045
md: RAID level 1 does not need chunksize! Continuing anyway.
md0: max total readahead window set to 124k
md0: 1 data-disks, max readahead per data-disk: 124k
raid1: device hdc1 operational as mirror 1
raid1: device hda1 operational as mirror 0
raid1: raid set md0 active with 2 out of 2 mirrors
md: updating md0 RAID superblock on device
md: hdc1 [events: 00000046]<6>(write) hdc1's sb offset: 38081984
md: hda1 [events: 00000046]