挂载磁盘阵列柜后，显示的大小比实际小1TB

发布时间:2011-05-24 20:47:47来源:红联作者:lingqing114

HP MSA2312sa 12块1TB硬盘，11块做RAID5,1块做SPARE。设置后容量为10TB。使用parted将RAID转化GPT格式，挂载后却只显示9TB

挂载后容量显示减少的问题

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[root@localhost ~]# parted -l

Model: HP MSA2312sa (scsi)

Disk /dev/sda: 9992GB

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

Partition Table: gpt

Number Start End Size File system Name Flags

1 17.4kB 9992GB 9992GB ext2 dp1

Model: HP MSA2312sa (scsi)

Disk /dev/sdb: 9992GB

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

Partition Table: gpt

Number Start End Size File system Name Flags

1 17.4kB 9992GB 9992GB ext2 dp1

Error: Unable to open /dev/md0 - unrecognised disk label.

Model: Compaq Smart Array (cpqarray)

Disk /dev/cciss/c0d0: 294GB

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

Partition Table: msdos

Number Start End Size Type File system Flags

1 32.3kB 107MB 107MB primary ext3 boot

2 107MB 294GB 293GB primary lvm

[root@localhost ~]# fdisk -l

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 10.0 TB (9991878737920 bytes).

DOS partition table format can not be used on drives for volumes

larger than 2.2 TB (2199023255040 bytes). Use parted(1) and GUID

partition table format (GPT).

Disk /dev/sda: 9991.8 GB, 9991878737920 bytes

255 heads, 63 sectors/track, 1214776 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sda1 1 267350 2147483647+ ee EFI GPT

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.

WARNING: The size of this disk is 10.0 TB (9991878737920 bytes).

DOS partition table format can not be used on drives for volumes

larger than 2.2 TB (2199023255040 bytes). Use parted(1) and GUID

partition table format (GPT).

Disk /dev/sdb: 9991.8 GB, 9991878737920 bytes

255 heads, 63 sectors/track, 1214776 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sdb1 1 267350 2147483647+ ee EFI GPT

Disk /dev/cciss/c0d0: 293.5 GB, 293563949056 bytes

255 heads, 63 sectors/track, 35690 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/cciss/c0d0p1 * 1 13 104391 83 Linux

/dev/cciss/c0d0p2 14 35690 286575502+ 8e Linux LVM

[root@localhost ~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/VolGroup01-LogVol00

261G 2.6G 245G 2% /

/dev/cciss/c0d0p1 99M 12M 82M 13% /boot

tmpfs 8.0G 0 8.0G 0% /dev/shm

/dev/sdb1 9.0T 52K 8.5T 1% /home/mysyslog

挂载后为什么只显示9T了?