[root@localhost /]# fdisk /dev/sd
sda sda1
sda2 sda3 sdb
sdb1
[root@localhost /]# fdisk /dev/sdb
Device contains
neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS
disklabel with disk identifier 0x34c1337c.
Changes will remain
in memory only, until you decide to write them.
After that, of
course, the previous content won’t be recoverable.
Warning: invalid
flag 0x0000 of partition table 4 will be corrected by w(rite)
The device presents
a logical sector size that is smaller than
the physical sector
size. Aligning to a physical sector (or optimal
I/O) size boundary
is recommended, or performance may be impacted.
WARNING:
DOS-compatible mode is deprecated. It’s strongly recommended to
switch off the mode (command ‘c’) and
change display units to
sectors (command ‘u’).
Command (m for
help): m
Command action
a
toggle a bootable flag
b
edit bsd disklabel
c
toggle the dos compatibility flag
d
delete a partition
l
list known partition types
m
print this menu
n
add a new partition
o
create a new empty DOS partition table
p
print the partition table
q
quit without saving changes
s
create a new empty Sun disklabel
t
change a partition’s system id
u
change display/entry units
v
verify the partition table
w
write table to disk and exit
x
extra functionality (experts only)
Command (m for
help): p
Disk /dev/sdb: 136.4
GB, 136365211648 bytes
255 heads, 63
sectors/track, 16578 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Sector size
(logical/physical): 512 bytes / 4096 bytes
I/O size
(minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier:
0x34c1337c
Device Boot Start End Blocks
Id System
Command (m for
help): n
Command action
e
extended
p
primary partition (1-4)
p
Partition number
(1-4): 1
First cylinder
(1-16578, default 1): 16578
Command (m for
help): p
Disk /dev/sdb: 136.4
GB, 136365211648 bytes
255 heads, 63
sectors/track, 16578 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Sector size
(logical/physical): 512 bytes / 4096 bytes
I/O size
(minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier:
0x34c1337c
Device Boot Start End Blocks
Id System
/dev/sdb1 16578 16578 8032+
83 Linux
Partition 1 does not
start on physical sector boundary.
Command (m for
help): w
The partition table
has been altered!
Calling ioctl() to
re-read partition table.
Syncing disks.
[root@localhost /]#
mkfs.ext4 /dev/sdb
sdb sdb1
[root@localhost /]#
mkfs.ext4 /dev/sdb
sdb sdb1
[root@localhost /]#
mkfs.ext4 /dev/sdb
sdb sdb1
[root@localhost /]#
fdisk -l
Disk /dev/sda: 136.4
GB, 136365211648 bytes
255 heads, 63
sectors/track, 16578 cylinders
Units = cylinders of
16065 * 512 = 8225280 bytes
Sector size
(logical/physical): 512 bytes / 4096 bytes
I/O size
(minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier:
0x0008482b
Device Boot Start End Blocks
Id System
/dev/sda1 *
1 26 204800
83 Linux
Partition 1 does not
end on cylinder boundary.
/dev/sda2 26 16057
128769024 83 Linux
/dev/sda3 16057 16579
4194304 82 Linux swap / Solaris
Disk
/dev/sdb: 136.4 GB, 136365211648 bytes
255 heads,
63 sectors/track, 16578 cylinders
Units =
cylinders of 16065 * 512 = 8225280 bytes
Sector
size (logical/physical): 512 bytes / 4096 bytes
I/O size
(minimum/optimal): 4096 bytes / 4096 bytes
Disk
identifier: 0x34c1337c
Device Boot Start End Blocks
Id System
/dev/sdb1 16578 16578 8032+
83 Linux
Partition
1 does not start on physical sector boundary.
[root@localhost /]# mkfs.ext4 /dev/sdb1
mke2fs 1.41.12
(17-May-2010)
/dev/sdb1 alignment
is offset by 3584 bytes.
This may result in
very poor performance, (re)-partitioning suggested.
Discarding device
blocks: done
Filesystem label=
OS type: Linux
Block size=1024
(log=0)
Fragment size=1024
(log=0)
Stride=4 blocks,
Stripe width=0 blocks
2008 inodes, 8032
blocks
401 blocks (4.99%)
reserved for the super user
First data block=1
Maximum filesystem
blocks=8388608
1 block group
8192 blocks per
group, 8192 fragments per group
2008 inodes per
group
Writing inode
tables: done
Creating journal
(1024 blocks): done
Writing superblocks
and filesystem accounting information: done
This filesystem will
be automatically checked every 35 mounts or
180 days, whichever
comes first. Use tune2fs -c or -i to
override.
[root@localhost /]# tune2fs -c -1 -i 0 /dev/sdb1 (파일시스템 강제 체크하는 마운트 횟수 및 기간 설정 변경)
tune2fs
1.41.12 (17-May-2010)
Setting
maximal mount count to -1
Setting
interval between checks to 0 seconds
[root@localhost /]# mkdir -p /data2
[root@localhost /]# blkid (sdb1의 유니크한 ID(UUID) 확인)
/dev/sda3:
UUID=”b5755e1d-8cc8-471d-a5a4-a21cfe24afde” TYPE=”ext4″
/dev/sdb1:
UUID=”2d3e8015-0704-48f1-9bd6-6124a17c3a53″ TYPE=”ext4″
/dev/sda1:
UUID=”000f715a-e4af-4a0a-9371-0f2fb51550ef” TYPE=”ext4″
/dev/sda2:
UUID=”54f61ddb-9bb6-47a8-a3e9-4839c9ac1300″ TYPE=”swap”
/dev/sdb1:
UUID=”5acda3c5-830a-4141-b274-377b9542a73f” TYPE=”ext4″
[root@localhost /]# vi /etc/fstab (fstab에 마운트 추가)
9 UUID=b5755e1d-8cc8-471d-a5a4-a21cfe24afde
/
ext4 defaults 1 1
10
UUID=000f715a-e4af-4a0a-9371-0f2fb51550ef
/boot
ext4 defaults 1 2
11
UUID=2d3e8015-0704-48f1-9bd6-6124a17c3a53
/data
ext4 defaults 1 2
12
UUID=54f61ddb-9bb6-47a8-a3e9-4839c9ac1300
swap
swap defaults 0 0
13 UUID=5acda3c5-830a-4141-b274-377b9542a73f
/data2
ext4 defaults 0 0 (추가)
14
tmpfs
/dev/shm
tmpfs defaults 0 0
15
devpts
/dev/pts
devpts gid=5,mode=620 0 0
16
sysfs
/sys
sysfs defaults 0 0
17
proc
/proc
proc defaults 0 0
[root@dsmaref ~]# mount -a (자동마운트로 붙는지 확인)
[root@dsmaref
~]# df -h
Filesystem
Size Used Avail Use% Mounted on
/dev/sda3
212G 51G 151G 26% /
tmpfs
16G 80K 16G 1% /dev/shm
/dev/sda1
190M 38M 142M 22% /boot
/dev/sdb1
11T 2.2T 8.1T 21% /data
/dev/sdb1
3.6T 68M 3.4T 1% /data2