From mboxrd@z Thu Jan 1 00:00:00 1970 From: Herta Van den Eynde Subject: mdadm create size problem Date: Tue, 03 May 2005 15:53:30 +0200 Message-ID: <4277825A.1070405@cc.kuleuven.be> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Red Hat AS 2.1 mdadm 1.11 I have two devices that used to be part of a now corrupt RAID10=20 configuration. When I try to reuse them to create a RAID1, it only use= s=20 about 1 third of the diskspace available. # fdisk -l /dev/sdg Disk /dev/sdg: 255 heads, 63 sectors, 8924 cylinders Units =3D cylinders of 16065 * 512 bytes Device Boot Start End Blocks Id System /dev/sdg1 1 8924 71681998+ fd Linux raid autodetect # fdisk -l /dev/sdn Disk /dev/sdn: 255 heads, 63 sectors, 8924 cylinders Units =3D cylinders of 16065 * 512 bytes Device Boot Start End Blocks Id System /dev/sdn1 1 8924 71681998+ fd Linux raid autodetect # mdadm --create --verbose /dev/md5 --level=3D1 --raid-devices=3D2 /dev= /sdg=20 /dev/sdn mdadm: /dev/sdg appears to contain an ext2fs file system size=3D419520K mtime=3DMon May 2 17:04:04 2005 mdadm: /dev/sdn appears to contain an ext2fs file system size=3D419520K mtime=3DMon May 2 17:04:04 2005 mdadm: size set to 139904K Continue creating array? n If I try to add the --size option, even a size that is 139904K or less,= =20 it tells me the size is invalid: # mdadm --create --verbose /dev/md5 --level=3D1 --raid-devices=3D2 /dev= /sdg=20 /dev/sdn --size=3D139904K mdadm: invalid size: 139904K I did reboot the system after fdisk'ing the devices. Do I need to low-level format these devices to be able to reuse them? Kind regards, Herta --=20 Herta Van den Eynde -=3D- Toledo system management K.U. Leuven - Ludit -=3D- phone: +32 (0)16 322 166 -=3D- 50=B051'27" N 004=B040'39" E "I wish I were two little cats. Then I could play together." - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html