2010/1/27 Michał Sawicz <michal@xxxxxxxxxx>: > See http://scotgate.org/2006/07/03/growing-a-raid5-array-mdadm/ > > You can check the status of your arrays by 'cat /proc/mdstat'. Thank you both for the links. The 1st one made me laugh... I am not lazy as I did Google that but I wasn't sure about the last two commands for expanding the file system and I didn't know how dated that material was so I decided to ask here on the list. Now my extra (4th disk) has been added and grown into my RAID5 array as shown below: [root@tuna ~]# mdadm --detail /dev/md0 /dev/md0: Version : 0.90 Creation Time : Wed Jan 27 08:15:03 2010 Raid Level : raid5 Array Size : 720587328 (687.21 GiB 737.88 GB) Used Dev Size : 240195776 (229.07 GiB 245.96 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Thu Jan 28 08:35:24 2010 State : active Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 64K UUID : e3c1e8b3:5a1b141f:af88d4a5:584f0b5f Events : 0.1810 Number Major Minor RaidDevice State 0 8 2 0 active sync /dev/sda2 1 8 18 1 active sync /dev/sdb2 2 8 34 2 active sync /dev/sdc2 3 8 50 3 active sync /dev/sdd2 Now my /dev/md0 RAID5 array is mounted to my / partition. I still need to expand the file system to make use of the extra space, right? I simply added the drive and empty partition table into the RAID...I still don't have a file system on it yet, do I? -- 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
