From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Haigh Subject: Re: looking for advice on raid drives upgrade Date: Thu, 31 Mar 2011 00:31:57 +1100 Message-ID: <4D9330CD.7090806@crc.id.au> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: David Brown Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 31/03/2011 12:14 AM, David Brown wrote: > If you've got a spare drive slot, and plenty of time, there is another > option that lets you keep online and redundant during the process. > Re-shape the array to raid 6, while adding one of the new drives. Then > you can replace each drive, one at a time, letting the raid recover in > between. For the last drive, you just have to remove it then reshape > back to raid 5 (although ideally you could buy an extra drive and keep > the raid 6 layout - it's worth the cost, assuming you have the drive slot). > > Once everything is swapped over, you grow the array to fit the new disks. This makes me wonder... What is recommended as the best practice... Use the entire disk or 1 partition per device? Assuming of course that you won't be booting off the RAID5/6.... -- Steven Haigh Email: netwiz@crc.id.au Web: http://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897 Fax: (03) 8338 0299