EDG System Administration

I decided to take all the old scsi disks that I have and attach them to an old pc and use the setup as a backup computer. I’ll put as many disks as I can into a software raid to use for backups and then put a dvd writer in the computer to use to write dvds.

Here is the scsi stuff attached:

Host: scsi0 Channel: 00 Id: 01 Lun: 00
  Vendor: SEAGATE  Model: ST3146807LW      Rev: 0007
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 02 Lun: 00
  Vendor: SEAGATE  Model: ST336607LW       Rev: 0006
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 03 Lun: 00
  Vendor: SEAGATE  Model: ST336607LW       Rev: 0006
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 04 Lun: 00
  Vendor: SEAGATE  Model: ST336607LW       Rev: 0006
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 08 Lun: 00
  Vendor: SONY     Model: SDT-11000        Rev: 0200
  Type:   Sequential-Access                ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 09 Lun: 00
  Vendor: SEAGATE  Model: ST336607LW       Rev: 0007
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 11 Lun: 00
  Vendor: SEAGATE  Model: ST373307LW       Rev: 0007
  Type:   Direct-Access                    ANSI SCSI revision: 03

I’m going to combine all the ST336607LW disks into a software raid. First, create a new partition on each of these disks. Then create the raid.

# mdadm --create --verbose /dev/md0 --level=5 --raid-devices=4 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
# mkfs.ext3 -m0 -j -O dir_index,resize_inode,sparse_super /dev/md0
# tune2fs -c0 -i0 /dev/md0

After mounting, I have a 109GB drive mounted as the raid. Not much, but it’s a little more disk space to use. I’ll also mount the other disks, which are a little bigger to give me a bit more space.