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Date: Wed, 29 Feb 2012 21:21:34 +0200
From: Michael Shigorin <mike@osdn.org.ua>
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On Wed, Feb 29, 2012 at 02:09:55PM -0500, Dubrovskiy Viacheslav wrote:
> Вопрос: Как быть в такой ситуации? Можно ли разбить диск
> вручную с учетом выравнивания раздела и потом добавить в рейд?

На всякий:
- http://www.altlinux.org/BigSector
- mdadm умеет делать один из дисков в зеркале write-mostly

> Disk /dev/sdb: 500.1 GB, 500107862016 bytes
> Disk /dev/sda: 500.1 GB, 500107862016 bytes

На пятисотках не делали 4k-сектор вроде, от терабайта и выше.
Возможно, просто битый диск.

-- 
 ---- WBR, Michael Shigorin <mike@altlinux.ru>
  ------ Linux.Kiev http://www.linux.kiev.ua/