[CentOS] SATA Raid 5 and losing a drive

Tue Apr 11 18:24:01 UTC 2006
Chris Mauritz <chrism at imntv.com>

Joshua Baker-LePain wrote:
> On Tue, 11 Apr 2006 at 7:07pm, Andy Green wrote
>> Andy Green wrote:
>>> Joshua Baker-LePain wrote:
>>>> Did you try doing any I/O to the array?  In my limited experience 
>>>> with software RAID, it won't notice a drive missing until it tries 
>>>> to do something with said drive.
>>> Yes I did do this, I copied a file to the mountpoint and did a sync. 
>>> Nothing.
>> Hm Googling around suggests that everyone with SATA raid may be 
>> experiencing the same lack of warning that their safety net just blew 
>> a hole through the server farm roof in a bid to reach escape velocity.
> And *that's* why I use 3ware...

Same here.  Though I did use software RAID5 for a number of years back 
in the 96-2000 timeframe and never lost any data, even on very busy 
production mail servers.  But as I look back, I think I was just 
remarkably lucky.  8-)