hello everyone~

I have a problem,
I have a new host is Dell R330,
run pve4.2 os
disk with 2 raid,one is raid1,another is raid10(sas 10k 600G * 6)
raid1 as system disk,raid10 as vm images
my mysql slave run on this vm with raid10 local disk(lvm).
the question is this vm's disk io is very slow,
that's why?
Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz 
avgqu-sz   await  svctm  %util
vda               0.00    71.00    8.00  226.00    64.00  2368.00    10.39     
1.37    5.85   4.24  99.10
but I test disk random write is better with fio tools,
bw=21518KB/s iops=1344
same vm,I use iscsi remote storage better than it,
Device:         rrqm/s   wrqm/s     r/s     w/s   rsec/s   wsec/s avgrq-sz 
avgqu-sz   await  svctm  %util
vda               0.00     0.00    0.00    3.00     0.00    24.00     8.00     
0.00    0.33   0.33   0.10
that's why?
who can help me?
What information is needed?please tell me?
thanks!
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