On 26 January 2012 10:26, Nikolay Kichukov <hijacker@xxxxxxxxx> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all, > > I tried to expand md block device raid level 0 ( /dev/md2 ) by adding another partition to it. > > Here are the steps: > > mdadm --assemble /dev/md2 > mdadm: /dev/md2 has been started with 2 drives. > hanna64:~# mdadm --grow /dev/md2 --raid-devices=3 --add /dev/sdc2 > mdadm: level of /dev/md2 changed to raid4 > mdadm: added /dev/sdc2 > mdadm: Need to backup 3072K of critical section.. > > > Now fdisk -l cannot complete, just goes to D state. > > Disks layout before the grow attempt: > > ARRAY /dev/md2 metadata=1.2 name=hanna64:2 UUID=4840f7f0:71b5f4a0:c4d8a42c:0b43b5fb > > /dev/sda2: UUID="4840f7f0-71b5-f4a0-c4d8-a42c0b43b5fb" TYPE="linux_raid_member" LABEL="hanna64:2" > UUID_SUB="cf97412f-269a-f3e8-fde2-8ca3bf42a349" > /dev/sdb2: UUID="4840f7f0-71b5-f4a0-c4d8-a42c0b43b5fb" TYPE="linux_raid_member" LABEL="hanna64:2" > UUID_SUB="9aee2d4c-6deb-911a-d790-cbd12f6c671c" > > md2 : active raid0 sda2[0] sdb2[1] > 15628288 blocks super 1.2 512k chunks > > > Disk /dev/md2: 16.0 GB, 16003366912 bytes > 2 heads, 4 sectors/track, 3907072 cylinders, total 31256576 sectors > Units = sectors of 1 * 512 = 512 bytes > Sector size (logical/physical): 512 bytes / 512 bytes > I/O size (minimum/optimal): 524288 bytes / 1048576 bytes > Disk identifier: 0x7b88c100 > > Disk /dev/md2 doesn't contain a valid partition table > > > This array was used as swap, so no valuable information is stored there anyways. Let me know what has gone wrong and > what I typed wrong assuming the grow command will just add /dev/sdc2 to the existing array and make it larger with the > size of /dev/sdc2. > > Thank you, > - -Nikolay Kichukov > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.11 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iQEcBAEBAgAGBQJPISpZAAoJEDFLYVOGGjgXS4IIAIDdhB1lInCO9jpb9eQRyj8x > QQYl7B+t0pud/mBuML5T2eTou/qtLhp4Mdv0ZoiwJ7NIuouXuR1wOAbe7/LDkKwB > ku1iLjLpnqLtQZnctYV598cjH3q2mzb8zi7bOoD3FTGRN/DmyNik0WflsLA04TBc > 0ohR4KoQIA/j95CvhNrMhZ2tyUis8VmhN+aBzdCnm90gNE8fLJKpUsB1hKahocit > wSUg9ab/C2wDHTBp5mq1AJModgClCKMCUgf7Z4A1f2zP6NPy1xmoP88emGLUSo/b > NEMwNTqKjzKcxo67kl0xUGnp8kxVfCLGfjDQHUUFwMT1F9g/PWkgBD0CXmfBSbk= > =g/v/ > -----END PGP SIGNATURE----- > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html AFAIK growing raid0 is not possible. /M -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
