Company Soft RAID issues

The following questions are not monitored by nagios?

<1>

d238 ~ # Cat/proc/mdstat
Personalities: [RAID0] [RAID1] [RAID10] [RAID6] [RAID5] [RAID4] [multipath] [faulty]
Md1:active RAID1 sdb1[1] sda1[0]
112320 blocks [2/2] [UU]

Md2:active RAID10 sdc2[2] sdd2[3] sdb2[1] sda2[0]
33574912 blocks 512K chunks 2 far-copies [4/4] [uuuu]

Md3:active RAID10 sdc3[2] sdd3[3] sdb3[1] sda3[0]
33574912 blocks 512K chunks 2 far-copies [4/4] [uuuu]

Md4:active RAID5 sdc4[2] sdd4[3] sdb4[1] sda4[0]
2829214464 blocks Level 5, 256k chunk, algorithm 2 [4/4] [uuuu]//This state is incorrect.

<2>

d237 ~ # Cat/proc/mdstat
Personalities: [RAID0] [RAID1] [RAID10] [RAID6] [RAID5] [RAID4] [multipath] [faulty]
md127: inactive sdc4[2] (s) sda4[0] (s) sdb4[3] (s)//change MD number, and all are slave states.
2829214848 blocks

Md1:active RAID1 Sda1[0]
112320 blocks [2/1] [u_]

Md2:active RAID10 sdc2[2] sdb2[3] sda2[0]
33574912 blocks 512K chunks 2 far-copies [4/3] [U_uu]

Md3:active RAID10 sdc3[2] sdb3[3] sda3[0]
33574912 blocks 512K chunks 2 far-copies [4/3] [U_uu]

Solve ===>???

1.1.1 Renaming raid

Example: Renaming/dev/md0 to/dev/md3

Normal Condition:

Mdadm-s/DEV/MD2

Mdadm-a/dev/md2/dev/sd[ab]2

Missing piece of disk (SDA2)

Mdadm-s/DEV/MD2

MDADM-E/DEV/SDB2 Get UUID

Mdadm-a/DEV/MD2--uuid=063d9f6b:d6a208aa:cb201669:f728008a

--------------------------------------------------------------------------------------------------------------- --------------------------------------------------

db101 ~ # fdisk-l|grep "^/dev"
/DEV/SDA1 * 2048 206847 102400 Linux
/dev/sda2 206848 67315711 33554432, Linux Swap/solaris
/dev/sda3 67315712 193144831 62914560-up Linux
/DEV/SDA4 193144832 1169686527 488270848-up Linux
/DEV/SDB1 2048 1169686527 584842240-up Linux
/DEV/SDC1 2048 1169686527 584842240-up Linux
/DEV/SDD1 2048 1169686527 584842240-up Linux
/dev/sde1 2048 1169686527 584842240-up Linux
/DEV/SDF1 * 2048 488378644 1953506388 7 Hpfs/ntfs/exfat

Company Soft RAID issues