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i'm using Red Hat Enterprise Linux Server release 6.0 (Santiago) with kernel 2.6.32-71.el6.x86_64.
I have added IBM Storage DS3512 with the size 16 TB and i have set multipath service. Also i have set RAID 5 on the storage. however when i check with pvscan, the message errors come up like this :
[root@localhost ~]# pvscan
/dev/sdu: read failed after 0 of 4096 at 0: Input/output error
/dev/sdu: read failed after 0 of 4096 at 17998757691392: Input/output error
/dev/sdu: read failed after 0 of 4096 at 17998757748736: Input/output error
/dev/sdu: read failed after 0 of 4096 at 4096: Input/output error
/dev/sdn: read failed after 0 of 4096 at 0: Input/output error
/dev/sdn: read failed after 0 of 4096 at 17998757691392: Input/output error
/dev/sdn: read failed after 0 of 4096 at 17998757748736: Input/output error
/dev/sdn: read failed after 0 of 4096 at 4096: Input/output error
PV /dev/sdw4 VG VolGroup lvm2 [277.58 GiB / 66.43 GiB free]
PV /dev/mapper/mpathe VG vg_oradata lvm2 [3.08 TiB / 1.12 TiB free]
PV /dev/mapper/mpathf VG vg_backupdb lvm2 [3.42 TiB / 1.46 TiB free]
PV /dev/mapper/mpathd VG vg_redolog lvm2 [622.51 GiB / 22.51 GiB free]
PV /dev/mapper/mpathc VG vg_redolog lvm2 [620.00 GiB / 20.00 GiB free]
PV /dev/mapper/mpathg VG vg_redolog lvm2 [620.00 GiB / 20.00 GiB free]
PV /dev/mapper/mpathb VG vg_archive lvm2 [837.37 GiB / 37.37 GiB free]
Total: 7 [9.40 TiB] / in use: 7 [9.40 TiB] / in no VG: 0 [0 ]