Rebuilding Raid Array

Hi

i have a fix load around 3~4 and seem that the cause is the Raid,
it's normal that my server is so slow to rebuild the raid array?

cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
Event: 6
md4 : active raid1 hda7[0] hdc7[1]
61368192 blocks [2/2] [UU]
[===>.................] resync = 19.1% (11766916/61368192) finish=505.4min speed=1633K/sec
md3 : active raid1 hda6[0] hdc6[1]
1052160 blocks [2/2] [UU]
resync=DELAYED
md1 : active raid1 hda5[0] hdc5[1]
2096384 blocks [2/2] [UU]
resync=DELAYED
md5 : active raid1 hda3[0] hdc3[1]
4192896 blocks [2/2] [UU]
resync=DELAYED
md0 : active raid1 hda2[0] hdc2[1]
8385856 blocks [2/2] [UU]

md2 : active raid1 hda1[0] hdc1[1]
1052160 blocks [2/2] [UU]

unused devices: <none>


i have try also:

hdparm -t /dev/md4

/dev/md4:
Timing buffered disk reads: 10 MB in 3.33 seconds = 3.00 MB/sec

thx

 

 

 

 

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