NFS child dataset Input/output error when mounting

[fahadshery]

Hi,

I have a dataset mysql. It has two child datasets

1. mysql_home
2. mysql_home_log

mysql_home has a record size of 16K whilst mysql_home_log has a record size of 128K. Here is the summary:

I am mounting in ubuntu server with the following /etc/fstab entry:

Code:

truenas_ip:/mnt/tank_fast10/mysql /mnt/truenas/mysql   nfs auto,nofail,noatime,nolock,intr,tcp,actimeo=1800 0 0

I can touch test.txt in the mysql folder. but when I goto the either datasets. I am getting the following error:

Code:

ls: reading directory '.': Input/output error
total 0

user@ubuntu: /mnt/truenas/mysql/mysql_home$ touch test
touch: cannot touch 'test': Input/output error

What am I missing?
Cheers

 

[fahadshery]

had to export at child dataset level according to this post.