From: Alexei Takaseev <alexei@taf.ru>
To: shigorin@gmail.com,
ALT Linux sysadmins' discussion <sysadmins@lists.altlinux.org>
Subject: Re: [Sysadmins] старый сервер, новый mdadm
Date: Sun, 26 Aug 2012 17:08:10 +0900 (IRKT)
Message-ID: <29375201.27.1345968486700.JavaMail.javamailuser@localhost> (raw)
In-Reply-To: <20120825190536.GA16934@osdn.org.ua>
----- Исходное сообщение -----
> От: "Michael Shigorin" <mike@osdn.org.ua>
> Кому: sysadmins@lists.altlinux.org
> Отправленные: Воскресенье, 26 Август 2012 г 4:05:36
> Тема: Re: [Sysadmins] старый сервер, новый mdadm
>
> On Sat, Aug 25, 2012 at 10:01:47PM +0300, I wrote:
> > [=>...................] resync = 5.0% (99328000/1953524992)
> > finish=408.1min speed=75716K/sec
> > [>....................] resync = 2.0% (40426048/1953262592)
> > finish=197.2min speed=161651K/sec
>
> Недолго музыка играла:
>
> md0 : active raid10 sdi[3] sdh[2] sdg[1] sdf[0]
> 1953262592 blocks super 1.2 512K chunks 2 near-copies [4/4]
> [UUUU]
> [=>...................] resync = 5.9% (116149760/1953262592)
> finish=398.5min speed=76817K/sec
> bitmap: 15/15 pages [60KB], 65536KB chunk
>
> Странное дело, диски сами по себе где-то в районе 80 и дают,
> а это всё-таки десятка...
А чем вам так не нравится 75Мб/с? Для дисков на 7200 оборотов вполне нормальная скорость.
Как ни изгаляйся, но скорость записи на блины уперлась в технологическую полку. А выигрыш
по скорости на Raid-10 только на операциях случайной записи/чтения.
next prev parent reply other threads:[~2012-08-26 8:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-25 19:01 Michael Shigorin
2012-08-25 19:05 ` Michael Shigorin
2012-08-26 8:08 ` Alexei Takaseev [this message]
2012-08-26 19:18 ` Michael Shigorin
2012-08-27 0:37 ` Michael A. Kangin
2012-08-29 19:53 ` Michael Shigorin
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