Linux implementation of more than 2TB hard disk partitions

To test the iSCSI service is normal

[Root@focusbackup ~]# service iSCSI Restart

Stop iSCSI: [OK]

[Root@focusbackup ~]# Chkconfig iSCSI on

[Root@focusbackup ~]# iscsiadm-m discovery-t sendtargets-p 10.5.83.131

Starting iscsid: [OK]

10.5.83.131:3260,1 Iqn.2006-01.com.openfiler:tsn.vmlocalbackup

[Root@focusbackup ~]# iscsiadm-m node-t iqn.2006-01.com.openfiler:tsn.vmlocalbackup-p 10.5.83.131-l

Logging in to [Iface:default, Target:iqn.2006-01.com.openfiler:tsn.vmlocalbackup, portal:10.5.83.131,3260] (multiple )

Login to [Iface:default, Target:iqn.2006-01.com.openfiler:tsn.vmlocalbackup, portal:10.5.83.131,3260] successful.

View hard disk devices

[Root@focusbackup ~]# Fdisk-l

disk/dev/sda:322.1 GB, 322122547200 bytes

255 heads, Sectors/track, 39162 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x000a4673

Device Boot Start End Blocks Id System

/DEV/SDA1 * 1 204800 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 1332 10485760 Linux Swap/solaris

/dev/sda3 1332 26109 199023616 Linux

/DEV/SDA4 26109 39163 104857600 5 Extended

/dev/sda5 26109 39163 104856576 Linux

disk/dev/sdb:2199.0 GB, 2199023254528 bytes

255 heads, Sectors/track, 267349 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x000bfa7a

Device Boot Start End Blocks Id System

/DEV/SDB1 1 267349 2147480811 Linux

disk/dev/sdd:1099.5 GB, 1099511627776 bytes

255 heads, Sectors/track, 133674 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

DISK/DEV/SDD doesn ' t contain a valid partition table

disk/dev/sdc:2199.0 GB, 2199023254528 bytes

255 heads, Sectors/track, 267349 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x26e7758c

Device Boot Start End Blocks Id System

/DEV/SDC1 1 267349 2147480811 Linux

Warning:gpt (GUID Partition Table) detected on '/DEV/SDE '! The util Fdisk doesn ' t support GPT. Use GNU Parted.

disk/dev/sde:6597.0 GB, 6596969103360 bytes

255 heads, Sectors/track, 802035 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

Device Boot Start End Blocks Id System

/dev/sde1 1 267350 2147483647+ ee GPT

Partitioning of more than 2TB hard drives requires the use of parted

[Root@focusbackup ~]# Parted/dev/sde

GNU Parted 2.1

Using/DEV/SDE

Welcome to GNU parted! Type ' help ' to view a list of commands.

(parted) Mklabel GPT

Warning: The existing disk label On/dev/sde'll be destroyed and all data on this disk would be lost. Do your want to continue?

Is/yes/no/no? Y