Re: Corruption during RAID5->RAID6 migration

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On Tue, 14 May 2013 15:56:57 -0500
James Doebbler <jamesdoebbler@xxxxxxxxx> wrote:

> Roman,
> 
> I suppose that means you think it's hardware-related then.  Do you
> have any suggestions on what/how I might be able to recover?
> 
> Hardware details:
> 
> The motherboard is ECS A785GM-M with 6x internal SATAII and 2x eSATAII
> I have installed 2 x SYBA SD-SA2PEX-2IR (SiI3132 Chipset), each with
> 2x onboard SATAII

Hello,

This card and in fact the 3132 chipset is known to corrupt data when both
ports are accessed simultaneously at high speed.

> http://lime-technology.com/wiki/index.php/Hardware_Compatibility
> SYBA (PCI-E X1) 2 port SATA II (SiI3132)
> Beware!!! There are numerous providers of SiL3132-based addon cards, and a few of them (unknown how many) are known to be faulty, causing unseen (SILENT) data corruption - see
> http://lime-technology.com/forum/index.php?topic=18428.msg167122#msg167122
> http://lime-technology.com/forum/index.php?topic=21052.msg187437#msg187437

Earlier discussions on linux-raid:
http://comments.gmane.org/gmane.linux.raid/30629
http://permalink.gmane.org/gmane.linux.raid/33369
http://comments.gmane.org/gmane.linux.raid/33346

Some more reports:
http://s.lowendshare.com/4/1368565867.495.2013-05-14T211035Z-syba3132.png
http://forum.ixbt.com/topic.cgi?id=11:35147-39#1199 (Russian)

-- 
With respect,
Roman

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