From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Johny Mail list" Subject: Re: Linux Software RAID is really RAID? Date: Tue, 3 Jul 2007 14:17:31 +0200 Message-ID: References: <46815C3F.6090204@wasp.net.au> <468A05A4.60006@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <468A05A4.60006@gmail.com> Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org To: Tejun Heo Cc: Brad Campbell , linux-raid@vger.kernel.org, linux-ide@vger.kernel.org List-Id: linux-raid.ids 2007/7/3, Tejun Heo : > Brad Campbell wrote: > > Johny Mail list wrote: > >> Hello list, > >> I have a little question about software RAID on Linux. > >> I have installed Software Raid on all my SC1425 servers DELL by > >> believing that the md raid was a strong driver. > >> And recently i make some test on a server and try to view if the RAID > >> hard drive power failure work fine, so i power up my server and after > >> booting and the prompt appear I disconnected the power cable of my > >> SATA hard drive. Normaly the MD should eleminate the failure hard > >> drive of the logical drive it build, and the server continue to work > >> fine like nothing happen. Oddly the server stop to respond and i get > >> this messages : > >> ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen > >> ata4.00: cmd e7/00:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 > >> res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) > >> ata4: port is slow to respond, please be patient (Status 0xd0) > >> ata4: port failed to respond (30sec, Status 0xd0) > >> ata4: soft resetting port > >> > >> After that my system is frozen. > > How hard is it frozen? Can you blink the Numlock LED? > > -- > tejun > Hello tejun It froze just when the "ata4: port failed to respond (30sec, Status 0xd0)" is printed and yes my Numblock LED not respond when i press the numlock key.