[Root@v1 ~]# Df-h
FileSystem Size Used Avail use% mounted on
/dev/sda2 20G 3.3G 16G 18%/
Tmpfs 32G 228K 32G 1%/DEV/SHM
/DEV/SDA1 190M 32M 148M 18%/boot
[Root@v1 ~]# Fdisk-l
Warning:gpt (GUID Partition Table) detected on '/DEV/SDA '! The util Fdisk doesn ' t support GPT. Use GNU Parted.
disk/dev/sda:2997.9 GB, 2997920727040 bytes
255 heads, Sectors/track, 364476 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/4096 bytes
I/O size (minimum/optimal): 4096 bytes/4096 bytes
Disk identifier:0x00000000
Device Boot Start End Blocks Id System
/DEV/SDA1 1 267350 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
[Root@v1 ~]# FDISK/DEV/SDA
Warning:gpt (GUID Partition Table) detected on '/DEV/SDA '! The util Fdisk doesn ' t support GPT. Use GNU Parted.
Warning:the size of this disk is 3.0 TB (2997920727040 bytes).
DOS partition table format can not is used on drives for volumes
Larger than (2199023255040 bytes) for 512-byte sectors. Use parted (1) and GUID
Partition table Format (GPT).
The device presents a logical sector size this is smaller than
The physical sector size. Aligning to a physical sector (or optimal
I/O) size boundary is recommended, or performance could be impacted.
Warning:dos-compatible mode is deprecated. It ' s strongly recommended to
Switch off "mode" (Command ' C ') and change display units to
Sectors (Command ' u ').
Command (M for help): P
disk/dev/sda:2997.9 GB, 2997920727040 bytes
255 heads, Sectors/track, 364476 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Sector size (logical/physical): bytes/4096 bytes
I/O size (minimum/optimal): 4096 bytes/4096 bytes
Disk identifier:0x00000000
Device Boot Start End Blocks Id System
/DEV/SDA1 1 267350 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
Command (M for help):
Background: 1.dell C6220II server, using LSI OEM array Controller
2. This array can do more than 2 hard raid1,
3. Use this array to do 6 hard disk RAID5, when installing centOS6.6, in partition This step unexpectedly did not "force primary partition" This option, and in RAID1 settings, this will appear normally this option
4. Should be based on the 3rd, which led to RAID5 installed system, FDISK/DEV/SDA only a partition information
Cause: The problem should be the hard drive cylinder and sector display
Solution: Use Gdisk to partition, usage and fdisk almost, gdisk print display sector is normal, with Yum Gdisk installation Gdisk tool, to remind you, centOS6.6 64bit Partprobe does not work, Reboot after partition.
