mdadm kicked the disk out of the array, mpt2sas complains with a recurrent error
```
[ 20.740199] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
[ 378.060626] Fusion MPT base driver 3.04.20
[ 378.060633] Copyright (c) 1999-2008 LSI Corporation
[ 378.061620] Fusion MPT misc device (ioctl) driver 3.04.20
[ 378.061758] mptctl: Registered with Fusion MPT base driver
[ 378.061765] mptctl: /dev/mptctl @ (major,minor=10,220)
[ 434.092398] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
[ 2371.097391] end_request: I/O error, dev sdc, sector 0
[ 2397.139314] end_request: I/O error, dev sdc, sector 0
[ 2420.413883] end_request: I/O error, dev sdc, sector 0
[ 2427.474924] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
[ 2427.794821] md: md0: resync done.
[ 2427.818740] RAID1 conf printout:
[ 2427.818745] --- wd:3 rd:3
[ 2427.818749] disk 0, wo:0, o:1, dev:sda1
[ 2427.818752] disk 1, wo:0, o:1, dev:sdb1
[ 2427.818754] disk 2, wo:0, o:1, dev:sdc1
[ 2431.163691] end_request: I/O error, dev sdc, sector 0
[13923.724894] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
[51161.987273] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
[51166.686945] end_request: I/O error, dev sdc, sector 2056
[51166.710585] md: super_written gets error=-5, uptodate=0
[51166.710592] md/raid1:md0: Disk failure on sdc1, disabling device.
md/raid1:md0: Operation continuing on 2 devices.
[51166.770264] RAID1 conf printout:
[51166.770270] --- wd:2 rd:3
[51166.770274] disk 0, wo:0, o:1, dev:sda1
[51166.770276] disk 1, wo:0, o:1, dev:sdb1
[51166.770279] disk 2, wo:1, o:0, dev:sdc1
[51166.794657] RAID1 conf printout:
[51166.794663] --- wd:2 rd:3
[51166.794666] disk 0, wo:0, o:1, dev:sda1
[51166.794669] disk 1, wo:0, o:1, dev:sdb1
[94407.911741] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
[94407.911751] mpt2sas0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
```