mdadm: failed to RUN_ARRAY /dev/md0: Input/output error

Hi all :-)

after disks problems now I can't assemble my array:

mdadm -A --force /dev/md0 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sda
mdadm: failed to RUN_ARRAY /dev/md0: Input/output error

mdadm -S /dev/md0 and try to assemble same error..

mdadm -E /dev/sda

Magic : a92b4efc
Version : 0.90.00
UUID : 9bd6372e:e2eab1d5:d2bdc3cb:ad12f41d
Creation Time : Mon Sep 27 14:19:15 2010
Raid Level : raid6
Used Dev Size : 1465135936 (1397.26 GiB 1500.30 GB)
Array Size : 5860543744 (5589.05 GiB 6001.20 GB)
Raid Devices : 6
Total Devices : 5
Preferred Minor : 0

Update Time : Sat Jun 11 13:59:43 2011
State : active
Active Devices : 4
Working Devices : 5
Failed Devices : 1
Spare Devices : 1
Checksum : 99b0bd41 - correct
Events : 701273

Layout : left-symmetric
Chunk Size : 64K

Number Major Minor RaidDevice State
this 3 8 80 3 active sync /dev/sdf

0 0 0 0 0 removed
1 1 8 33 1 active sync /dev/sdc1
2 2 8 65 2 active sync /dev/sde1
3 3 8 80 3 active sync /dev/sdf
4 4 8 17 4 active sync /dev/sdb1
5 5 0 0 5 faulty removed
6 6 8 49 6 spare /dev/sdd1

how start my array?

thanks!

Pol
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