From: Mike Hardy <mhardy@h3c.com>
To: "Nigel J. Terry" <nigel@nigelterry.net>
Cc: Neil Brown <neilb@suse.de>, linux-raid@vger.kernel.org
Subject: Re: Raid5 reshape
Date: Mon, 19 Jun 2006 16:29:53 -0700 [thread overview]
Message-ID: <44973371.6060701@h3c.com> (raw)
In-Reply-To: <44972AF1.8040500@nigelterry.net>
Nigel J. Terry wrote:
> One comment - As I look at the rebuild, which is now over 20%, the time
> till finish makes no sense. It did make sense when the first reshape
> started. I guess your estimating / averaging algorithm doesn't work for
> a restarted reshape. A minor cosmetic issue - see below
>
> Nigel
> [nterry@homepc ~]$ cat /proc/mdstat
> Personalities : [raid5] [raid4]
> md0 : active raid5 sdb1[1] sda1[0] hdc1[4](S) hdb1[2]
> 490223104 blocks super 0.91 level 5, 128k chunk, algorithm 2 [4/3]
> [UUU_]
> [====>................] reshape = 22.7% (55742816/245111552)
> finish=5.8min speed=542211K/sec
Unless something has changed recently the parity-rebuild-interrupted /
restarted-parity-rebuild case shows the same behavior.
It's probably the same chunk of code (I haven't looked, bad hacker!
bad!), but I thought I'd mention it in case Neil goes looking
The "speed" is truly impressive though. I'll almost be sorry to see it
fixed :-)
-Mike
next prev parent reply other threads:[~2006-06-19 23:29 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-16 6:34 Raid5 reshape Tim
2006-06-16 6:41 ` Neil Brown
2006-06-16 16:00 ` Nigel J. Terry
2006-06-16 16:14 ` Tim T
2006-06-16 22:28 ` Neil Brown
2006-06-16 22:39 ` Nigel J. Terry
2006-06-16 22:44 ` Neil Brown
2006-06-17 19:21 ` Nigel J. Terry
2006-06-17 21:55 ` Neil Brown
2006-06-17 22:01 ` Nigel J. Terry
2006-06-17 22:05 ` Nigel J. Terry
2006-06-17 22:17 ` Neil Brown
2006-06-17 22:19 ` Nigel J. Terry
2006-06-18 12:57 ` Nigel J. Terry
2006-06-19 2:03 ` Neil Brown
2006-06-19 21:42 ` Nigel J. Terry
2006-06-19 22:46 ` Neil Brown
2006-06-19 22:53 ` Nigel J. Terry
2006-06-19 23:29 ` Mike Hardy [this message]
2006-06-19 23:33 ` Nigel J. Terry
2006-06-19 23:33 ` Neil Brown
2006-06-19 23:35 ` Nigel J. Terry
2006-06-20 10:35 ` Nigel J. Terry
2006-06-21 6:02 ` Neil Brown
2006-06-24 22:58 ` Raid5 reshape (Solved) Nigel J. Terry
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