HP DL380 G5 One disk in array rebuilding again and again

[Goczku]

Good evening!

I have problem with HP DL380 G5 server with Smart Array P400 controller.

I have RAID1+0 with 4 SATA 500GB disks inside.

Today morning, array started to rebuild logical drive. In details, it said that disk in bay 4 is rebuilding.

That's ok, but after rebuild system has been working for maybe 20 minutes and rebuilding of this disk started again.

The situation is repeating all day long, I don't know what to do now. Replace disk, replace RAID controller?

If You need any more datails, I will post it here.

I will be thakful for Your advices,

greetings!