From mboxrd@z Thu Jan 1 00:00:00 1970 From: Justin Piszcz Subject: Re: deliberately degrading RAID1 to a single disk, then back again Date: Tue, 26 Jun 2007 14:22:02 -0400 (EDT) Message-ID: References: <4681546B.4030709@harddata.com> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Return-path: In-Reply-To: <4681546B.4030709@harddata.com> Sender: linux-raid-owner@vger.kernel.org To: Maurice Hilarius Cc: "Linux, Raid lista" List-Id: linux-raid.ids mdadm /dev/md0 --fail /dev/sda1 On Tue, 26 Jun 2007, Maurice Hilarius wrote: > Good day all. > > Scenario: > Pair of identical disks. > partitions: > Disk 0: > /boot - NON-RAIDed > swap > / - rest of disk > > Disk 01 > /boot1 - placeholder to take same space as /boot on disk0 - NON-RAIDed > swap > / - rest of disk > > I created RAID1 over / on both disks, made /dev/md0 > >> From time to time I want to "degrade" back to only single disk, and turn > off RAID as the overhead has some cost >> From time to time I want to restore to RAID1 function, and re-synch the > pair to current. > > Yes, this is a backup scenario.. > > Are there any Recommendations ( with mdadm syntax) please? > > > > > > -- > > -- > > Regards, > Maurice > 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0 > > 1001 11111001 00010001 00000010 10011101 01110100 11100011 01011011 11011000 01000001 01010110 11000101 01100011 01010110 10001000 11000000 > > 10 base 13,256,278,887,989,457,651,018,865,901,401,704,640 > > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >