On 15.05.2012 15:49, majianpeng wrote:
Hi all:
In order to test md code, sometime we need simulate read/write harddisk error.
Using hdparm --make-bad-sector to simulate read error.But I did not find way of simulating write-error.
I tested md-faulty module, it can do this.But it is not provide the function link hdparm --make-bad-sector,which did not set lba.
Using hdpamr --make-bad-sector to simulate read error can cause some problem.
It will cause ata commnd reset,disk reset and so on.It take too log time.
So I think add a function in md-faulty which can set read/write lba.
How about ?
How about using an iscsi at localhost? Export disk via ISCSI target,
connect to it with initiator. With iptables and open-iscsi settings you
can precisely control error behavior and imitate all kinds of errors
(including timeouts).
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