linux ext4無法使用超過16T磁碟的解決辦法
• linux教程• 發佈：2018-10-02
[[email protected] sysadmin]# fdisk -lWARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.Disk /dev/sda: 40000.0 GB, 39999997214720 bytes255 heads, 63 sectors/track, 4863055 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000 Device Boot Start End Blocks Id System/dev/sda1 1 267350 2147483647+ ee GPT說明:此時檔案系統己經超過16T,OS預設將其轉換成了GPT格式的,所以使用fdisk無法檢視到準確的分割槽資訊。 二、使用parted 檢視分割槽資訊
[[email protected] sysadmin]# partedGNU Parted 2.1Using /dev/sdaWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) p Model: LSI AOC-USAS2LP-H8iR (scsi)Disk /dev/sda: 40.0TBSector size (logical/physical): 512B/512BPartition Table: gptNumber Start End Size File system Name Flags1 1049kB 525MB 524MB ext42 525MB 263GB 262GB ext43 263GB 284GB 21.0GB ext44 284GB 288GB 4295MB linux-swap(v1)三、將餘下的空間都分為/archive 作為歸檔的根目錄
(parted) mkpart /archive 288G -1(parted) p Model: LSI AOC-USAS2LP-H8iR (scsi)Disk /dev/sda: 40.0TBSector size (logical/physical): 512B/512BPartition Table: gptNumber Start End Size File system Name Flags1 1049kB 525MB 524MB ext42 525MB 263GB 262GB ext43 263GB 284GB 21.0GB ext44 284GB 288GB 4295MB linux-swap(v1)5 288GB 40.0TB 39.7TB /archive(parted)q四、檢視分割槽 [ [email protected] ~]# fdisk /dev/sdasda sda1 sda2 sda3 sda4 sda5 [ [email protected] ~]# 說明:此時己經找到新的分割槽【sda5】 五、修改/etc/mke2fd.conf
#vim /etc/mke2fs.conf[fs_types] ext3 = { features = has_journal } ext4 = { features = has_journal,extent,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize auto_64-bit_support = 1 #新增這一行 inode_size = 256 }六、下載e2fsprogs-1.42.13.tar.gz
[[email protected] ~]# wget -c http://jaist.dl.sourceforge.net/project/e2fsprogs/e2fsprogs/v1.42.8/e2fsprogs-1.42.13.tar.gz[[email protected] e2fsprogs-1.42.13]# pwd/home/sysadmin/e2fsprogs-1.42.13[[email protected] e2fsprogs-1.42.13]# cd build/[[email protected] build]# ../configure....[[email protected] build]# make &;&; make install七、格式化分割槽
[[email protected] ~]# mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize -i 2048 /dev/sda5[[email protected] build]# blkid/dev/sda1: UUID="908a3c8e-6d6a-4e01-8cad-2094ea99751f" TYPE="ext4"/dev/sda3: UUID="b533714f-4cb9-4394-907d-8d1ead424c85" TYPE="ext4"/dev/sda2: UUID="0a0ec20e-b50b-4d89-9fa6-65602e4e8a3d" TYPE="ext4"/dev/sda4: TYPE="swap" UUID="b8e89719-670f-4b26-bbf3-86d13a1f935e"/dev/sda5: UUID="3b5789ee-94c2-4296-bd99-5669200d826a" TYPE="ext4"注: mke2fs格式說明: -b<區塊大小>:指定區塊大小,單位為位元組; -c;檢查是否有損壞的區塊; -f<不連續區段大小>:指定不連續區段的大小,單位為位元組; -F:不管指定的裝置為何,強制執行mke2fs; -i<位元組>:指定"位元組/inode"的比例; -N:指定要建立的inode數目; -l<檔案>:從指定的檔案中,讀取檔案西中損壞區塊的資訊; -L<標籤>:設定檔案系統的標籤名稱; -m<百分比值>:指定給管理員保留區塊的比例,預設為5%; -M:記錄最後一次掛入的目錄; -q:執行時不顯示任何資訊; -r:指定要建立的ext2檔案系統版本; -R=<區塊數>:設定磁碟陣列引數; -S:僅寫入superblock與group descriptors,而不更改inode able inode bitmap以及block bitmap; -v:執行時顯示詳細資訊; -V:顯示版本資訊。 八、將對應的分割槽掛載即可以使用
[[email protected] build]# df -hFilesystem Size Used Avail Use% Mounted on/dev/sda3 20G 2.4G 16G 14% /tmpfs 7.8G 0 7.8G 0% /dev/shm/dev/sda1 477M 80M 372M 18% /boot/dev/sda2 241G 120M 228G 1% /home/dev/sda5 36T 20K 34T 1% /archive[[email protected] build]# df -iFilesystem Inodes IUsed IFree IUse% Mounted on/dev/sda3 1281120 91214 1189906 8% /tmpfs 2040386 1 2040385 1% /dev/shm/dev/sda1 128016 46 127970 1% /boot/dev/sda2 16007168 1955 16005213 1% /home/dev/sda5 4293781536 11 4293781525 1% /archive九、檢視磁碟資訊
[[email protected] build]# tune2fs -l /dev/sda5tune2fs 1.42.13 (17-May-2015)Filesystem volume name: <none>Last mounted on: <not available>Filesystem UUID: 3b5789ee-94c2-4296-bd99-5669200d826aFilesystem magic number: 0xEF53Filesystem revision #: 1 (dynamic)Filesystem features: has_journal ext_attr dir_index filetype needs_recovery extent 64bit flex_bg sparse_super huge_file uninit_bg dir_nlink extra_isizeFilesystem flags: signed_directory_hashDefault mount options: user_xattr aclFilesystem state: cleanErrors behavior: ContinueFilesystem OS type: LinuxInode count: 4293781536Block count: 9695327232Reserved block count: 484766361Free blocks: 9426221107Free inodes: 4293781525First block: 0Block size: 4096Fragment size: 4096Group descriptor size: 64Blocks per group: 32768Fragments per group: 32768Inodes per group: 14512Inode blocks per group: 907Flex block group size: 16Filesystem created: Thu Oct 15 15:27:56 2015Last mount time: Thu Oct 15 15:33:50 2015Last write time: Thu Oct 15 15:33:50 2015Mount count: 1Maximum mount count: 33Last checked: Thu Oct 15 15:27:56 2015Check interval: 15552000 (6 months)Next check after: Tue Apr 12 15:27:56 2016Lifetime writes: 202 MBReserved blocks uid: 0 (user root)Reserved blocks gid: 0 (group root)First inode: 11Inode size: 256Required extra isize: 28Desired extra isize: 28Journal inode: 8Default directory hash: half_md4Directory Hash Seed: 56a5949a-5a49-4bc9-810d-9a9e2aa2109bJournal backup: inode blocks