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From: "H. Peter Anvin" <hpa@zytor.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Brad Campbell <brad@wasp.net.au>, linux-raid@vger.kernel.org
Subject: Re: RAID-6: help wanted
Date: Sun, 24 Oct 2004 00:17:50 -0700	[thread overview]
Message-ID: <417B571E.4060406@zytor.com> (raw)
In-Reply-To: <417B5529.2070709@zytor.com>

H. Peter Anvin wrote:
>>
>> It'll be about 40 minutes until it's uploaded, because of the 80 MB 
>> data file.
>>
>> This will create a RAID-6 volume on a loopback device, fail a unit, 
>> and then write a bunch of stuff, which will corrupt the filesystem.  
>> The corruption only happens when writing to a volume that is running 
>> in degraded mode; it seems to happen both with 1 and 2 disks missing.
>>

For all I know, too, the data file can be any large collection of 
small-to-medium size files (I think it currently contains a Linux kernel 
build tree), so downloading it all might not be necessary.

	-hpa

  reply	other threads:[~2004-10-24  7:17 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-23 23:46 RAID-6: help wanted H. Peter Anvin
2004-10-24  5:26 ` Brad Campbell
2004-10-24  6:46   ` Jim Paris
     [not found]   ` <417B546C.3050706@zytor.com>
2004-10-24  7:09     ` H. Peter Anvin
2004-10-24  7:17       ` H. Peter Anvin [this message]
2004-10-24  7:18       ` Brad Campbell
2004-10-25  5:41 ` Neil Brown
2004-10-25  6:20   ` Jim Paris
2004-10-25  6:24     ` Neil Brown
2004-10-25  6:33       ` Jim Paris
2004-10-25 14:23       ` H. Peter Anvin
2004-10-27  3:38     ` Neil Brown
2004-10-27  5:23       ` H. Peter Anvin
2004-10-27  6:00         ` Jim Paris
2004-10-27  6:03           ` H. Peter Anvin
2004-10-28  1:17           ` H. Peter Anvin
2004-10-28 16:00             ` Jim Paris
2004-10-28 17:48               ` H. Peter Anvin
2004-10-28 17:49               ` H. Peter Anvin
2004-10-29  0:43                 ` Neil Brown
2004-10-29 11:48                   ` Jim Paris
2004-10-29 12:56                     ` Guy
2004-10-29 18:15                       ` Jim Paris
2004-10-29 19:04                         ` H. Peter Anvin
2004-10-29 19:21                           ` Jim Paris
2004-10-29 19:33                             ` H. Peter Anvin
2004-10-29 20:28                             ` Guy
2004-10-29 20:32                               ` H. Peter Anvin
2004-10-29 21:21                                 ` Guy
2004-10-29 21:33                                   ` H. Peter Anvin
2004-10-29 12:29                   ` Guy
2004-10-27  5:56       ` H. Peter Anvin

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