mountする
環境はcentos7.1 買ってきたのはHDD4TB WD40EZRZ 税込10349円を２台
以前使っていたディスク２台と新規で購入した１台をサーバにつけてどれもmountしていない状態 OSはsdaに入っている状態
[root@localhost ~]# df -h ファイルシス サイズ 使用 残り 使用% マウント位置 /dev/mapper/centos-root 50G 17G 34G 34% / devtmpfs 2.8G 0 2.8G 0% /dev tmpfs 2.8G 0 2.8G 0% /dev/shm tmpfs 2.8G 8.5M 2.8G 1% /run tmpfs 2.8G 0 2.8G 0% /sys/fs/cgroup /dev/sda1 494M 172M 323M 35% /boot /dev/mapper/centos-home 875G 33M 875G 1% /home tmpfs 568M 0 568M 0% /run/user/0 [root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 931.5G 0 disk ├─sda1 8:1 0 500M 0 part /boot └─sda2 8:2 0 931G 0 part ├─centos-root 253:0 0 50G 0 lvm / ├─centos-swap 253:1 0 5.8G 0 lvm [SWAP] └─centos-home 253:2 0 875.2G 0 lvm /home sdb 8:16 0 3.7T 0 disk sdc 8:32 0 931.5G 0 disk └─sdc1 8:33 0 931.5G 0 part sdd 8:48 0 931.5G 0 disk └─sdd1 8:49 0 931.5G 0 part [root@localhost ~]#
sdbが新規購入分っぽいのでこれをgdisk
[root@localhost ~]#
[root@localhost ~]# gdisk -l /dev/sd
sda sda1 sda2 sdb sdc sdc1 sdd sdd1
[root@localhost ~]# gdisk -l /dev/sdb
GPT fdisk (gdisk) version 0.8.6
Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present
Creating new GPT entries.
Disk /dev/sdb: 7814037168 sectors, 3.6 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): C4F1A9D5-6621-417F-9DE2-40F021C2F20F
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7814037134
Partitions will be aligned on 2048-sector boundaries
Total free space is 7814037101 sectors (3.6 TiB)
Number Start (sector) End (sector) Size Code Name
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# gdisk /dev/sdb
GPT fdisk (gdisk) version 0.8.6
Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present
Creating new GPT entries.
Command (? for help): n
Partition number (1-128, default 1):
First sector (34-7814037134, default = 2048) or {+-}size{KMGTP}:
Last sector (2048-7814037134, default = 7814037134) or {+-}size{KMGTP}:
Current type is 'Linux filesystem'
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'
Command (? for help): p
Disk /dev/sdb: 7814037168 sectors, 3.6 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 5F602FDF-FF38-4A77-93D6-9E76A3F9D502
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7814037134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 7814037134 3.6 TiB 8300 Linux filesystem
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): Y
OK; writing new GUID partition table (GPT) to /dev/sdb.
The operation has completed successfully.
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# gdisk -l /dev/sdb
GPT fdisk (gdisk) version 0.8.6
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sdb: 7814037168 sectors, 3.6 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 5F602FDF-FF38-4A77-93D6-9E76A3F9D502
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7814037134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 7814037134 3.6 TiB 8300 Linux filesystem
[root@localhost ~]#
mountする
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 931G 0 part
├─centos-root 253:0 0 50G 0 lvm /
├─centos-swap 253:1 0 5.8G 0 lvm [SWAP]
└─centos-home 253:2 0 875.2G 0 lvm /home
sdb 8:16 0 3.7T 0 disk
└─sdb1 8:17 0 3.7T 0 part
sdc 8:32 0 931.5G 0 disk
└─sdc1 8:33 0 931.5G 0 part
sdd 8:48 0 931.5G 0 disk
└─sdd1 8:49 0 931.5G 0 part
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# mkfs.xfs /dev/sdb1
meta-data=/dev/sdb1 isize=256 agcount=4, agsize=244188597 blks
= sectsz=4096 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=976754385, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=476930, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# mkdir /hdd1
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sun Oct 16 11:06:16 2016
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=33a5f5a1-c348-40fd-b9db-03cce5573433 /boot xfs defaults 0 0
/dev/mapper/centos-home /home xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# vi /etc/fstab
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sun Oct 16 11:06:16 2016
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=33a5f5a1-c348-40fd-b9db-03cce5573433 /boot xfs defaults 0 0
/dev/mapper/centos-home /home xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb1 /hdd1 xfs defaults 0 0
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# mount -a
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# df -h
ファイルシス サイズ 使用 残り 使用% マウント位置
/dev/mapper/centos-root 50G 17G 34G 34% /
devtmpfs 2.8G 0 2.8G 0% /dev
tmpfs 2.8G 0 2.8G 0% /dev/shm
tmpfs 2.8G 8.5M 2.8G 1% /run
tmpfs 2.8G 0 2.8G 0% /sys/fs/cgroup
/dev/sda1 494M 172M 323M 35% /boot
/dev/mapper/centos-home 875G 33M 875G 1% /home
tmpfs 568M 0 568M 0% /run/user/0
/dev/sdb1 3.7T 33M 3.7T 1% /hdd1
[root@localhost ~]# cd /hdd1/
[root@localhost hdd1]# ls
[root@localhost hdd1]#
[root@localhost hdd1]#
[root@localhost hdd1]#
以前はUUIDとか調べてやってたけど
/dev/sdb1 /hdd1 xfs defaults 0 0
これでいけるからもうずっとこれ
だったが。。。。
HDDの抜き差しとかがあると順番が入れ替わったりして結構面倒なことんなったりするのでUUIDにすることにした あとfstabの書き方も変えることでディスクがなくても起動してくれるようにできるっぽいので修正版はこちら
UUIDを調べる
[root@localhost ~]# ls -l /dev/disk/by-uuid 合計 0 lrwxrwxrwx 1 root root 10 10月 19 02:50 0e1c5871-b233-431c-8579-9009c5dc980c -> ../../sda1 lrwxrwxrwx 1 root root 10 10月 19 02:51 24cdc0f4-45c0-4532-964c-acf1aa9687b4 -> ../../dm-1 lrwxrwxrwx 1 root root 10 10月 19 02:51 33a5f5a1-c348-40fd-b9db-03cce5573433 -> ../../sde1 lrwxrwxrwx 1 root root 10 10月 19 02:51 453c8c19-7ae6-4c66-97c7-694150b6e3cd -> ../../dm-2 lrwxrwxrwx 1 root root 10 10月 19 02:50 80acfa3a-ffe8-489d-a2cd-29e7088e3590 -> ../../sdb1 lrwxrwxrwx 1 root root 10 10月 19 02:51 bbd80598-c871-4a54-8a86-9402ff61a0fd -> ../../dm-0 lrwxrwxrwx 1 root root 10 10月 19 02:50 d8748f43-4435-4484-8aeb-f13bae65eec2 -> ../../sdc1 lrwxrwxrwx 1 root root 10 10月 19 02:50 f36ac49a-bb57-4c37-994c-1e1663ff5a8f -> ../../sdd1
そしてfstabはこうなる
[root@localhost ~]# cat /etc/fstab # # /etc/fstab # Created by anaconda on Sun Oct 16 11:06:16 2016 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos-root / xfs defaults 0 0 UUID=33a5f5a1-c348-40fd-b9db-03cce5573433 /boot xfs defaults 0 0 /dev/mapper/centos-home /home xfs defaults 0 0 /dev/mapper/centos-swap swap swap defaults 0 0 UUID=0e1c5871-b233-431c-8579-9009c5dc980c /hdd1 xfs nofail 0 0 UUID=80acfa3a-ffe8-489d-a2cd-29e7088e3590 /hdd2 xfs nofail 0 0 UUID=d8748f43-4435-4484-8aeb-f13bae65eec2 /hdd3 xfs nofail 0 0 UUID=f36ac49a-bb57-4c37-994c-1e1663ff5a8f /hdd4 xfs nofail 0 0
相変わらずhdd1とかhdd2とかでマウントしてるけどこれはこれで便利だ nofailにすることでマウントに失敗しても無視して起動してくれる
