Re: MD/RAID time out writing superblock

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On Wed, 2 Sep 2009 17:58:41 -0400, Allan Wind
<allan_wind@xxxxxxxxxxxxxxxxx>
wrote:
> On 2009-09-01T09:07:11, Andrei Tanas wrote:
>> Mine errored out again with exactly the same symptoms, this time after
>> only
>> few days and with the "tunable" set to 2 sec. I got a warranty
>> replacement
>> but haven't shipped this one yet. Let me know if you want it.
> 
> How do you set it to 2 sec?  I have a raid 1 array of two new WDC 
> 2 TB drives that fail on the 2nd drive all the time.  Disabling 
> NCQ might have helped but it is hard to tell.  It was stable for 
> a week, but probably failed 10 times over the weekend.  I either 
> need to add a 3rd drive to get any protection from hardware 
> failure, or use lvm to mirror the two drives instead of md :-(

echo 2.0 > /sys/block/md0/md/safe_mode_delay
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