所有磁盘都用在哪里?

所有磁盘都用在哪里?

问这个问题几乎有点尴尬,但我自己真的无法弄清楚这个问题。我试图找出我的机器的磁盘在哪里使用以及它们是否确实被使用。

如果我在 Debian 中检查可用磁盘,我可以找到其中 4 个。这似乎是正确的。应该有一个 50GB 的磁盘、一个 120GB 的磁盘和两个 1.5TB 的磁盘。这里通过 uuid 和路径。

root@HK-MSA-DEB6-32-SHOP2:/dev/disk/by-uuid# ls -la
total 0
drwxr-xr-x 2 root root 140 Oct 22 20:19 .
drwxr-xr-x 5 root root 100 Oct 22 20:19 ..
lrwxrwxrwx 1 root root  10 Oct 22 20:19 18617f6c-d460-43ed-ac61-7f67c99fb710 -> ../../dm-2
lrwxrwxrwx 1 root root  10 Oct 22 20:19 27aca453-55a3-42c9-b3d5-131b1e42b8c8 -> ../../dm-1
lrwxrwxrwx 1 root root  10 Oct 22 20:19 90bef7ec-3cff-4bbb-980b-6552f67fe0c5 -> ../../dm-0
lrwxrwxrwx 1 root root  10 Oct 22 20:19 90f63e9b-86ab-455c-b555-b8e28ecec13b -> ../../dm-3
lrwxrwxrwx 1 root root  10 Oct 22 20:19 f2d73f18-ebff-4a34-874b-1766c6ee7e20 -> ../../sda1

root@HK-MSA-DEB6-32-SHOP2:/dev/disk/by-path# ls -la
total 0
drwxr-xr-x 2 root root 260 Oct 22 20:19 .
drwxr-xr-x 5 root root 100 Oct 22 20:19 ..
lrwxrwxrwx 1 root root   9 Oct 22 20:19 pci-0000:00:07.1-scsi-1:0:0:0 -> ../../sr0
lrwxrwxrwx 1 root root   9 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root  10 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root  10 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root  10 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:0:0-part5 -> ../../sda5
lrwxrwxrwx 1 root root   9 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:1:0 -> ../../sdb
lrwxrwxrwx 1 root root  10 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:1:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root   9 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:2:0 -> ../../sdc
lrwxrwxrwx 1 root root  10 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:2:0-part1 -> ../../sdc1
lrwxrwxrwx 1 root root   9 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:3:0 -> ../../sdd
lrwxrwxrwx 1 root root  10 Oct 22 20:19 pci-0000:00:10.0-scsi-0:0:3:0-part1 -> ../../sdd1

但是当我检查我的安装时,我找不到所有这些磁盘。

root@HK-MSA-DEB6-32-SHOP2:/dev/disk/by-id# mount
/dev/mapper/HK--MSA--DEB6--32--SHOP1-root on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/sda1 on /boot type ext2 (rw)
/dev/mapper/MSAdocuments-public on /var/MSAdocuments/public type ext4 (rw)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
192.168.10.2:/var/local/share/webshop-backup on /mnt/msa-server2-backup type nfs (rw,sync,hard,intr,vers=4,addr=192.168.10.2,clientaddr=192.168.10.21)
nfsd on /proc/fs/nfsd type nfsd (rw)

如果我检查磁盘使用情况,我无法识别任何 1.5TB 的大磁盘

root@HK-MSA-DEB6-32-SHOP2:/dev/disk/by-id# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/HK--MSA--DEB6--32--SHOP1-root
                       48G   19G   27G  42% /
tmpfs                 1.5G     0  1.5G   0% /lib/init/rw
udev                  1.5G  124K  1.5G   1% /dev
tmpfs                 1.5G     0  1.5G   0% /dev/shm
/dev/sda1             228M   28M  189M  13% /boot
/dev/mapper/MSAdocuments-public
                      119G   68G   45G  61% /var/MSAdocuments/public
192.168.10.2:/var/local/share/webshop-backup
                      926G  348G  579G  38% /mnt/msa-server2-backup

但实际上我已经迷失在这里了,我想我找错了地方。如果我只是想知道我的硬盘驱动器在 debian 操作系统中的使用方式和位置,谁能指出我必须寻找什么?只是如果这两个1.5TB实际上根本不用的话,我可以把它们拿出来用它做其他事情......

预先非常感谢您的帮助。

编辑:

root@HK-MSA-DEB6-32-SHOP2:/dev/disk/by-id# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/mapper/HK--MSA--DEB6--32--SHOP1-root /               ext3    errors=remount-ro 0       1
# /boot was on /dev/xvda1 during installation
UUID=f2d73f18-ebff-4a34-874b-1766c6ee7e20 /boot ext2 defaults 0 2
/dev/mapper/HK--MSA--DEB6--32--SHOP1-swap_1 none swap sw 0 0 /dev/xvdd
#/media/cdrom0 udf,iso9660 user,noauto 0 0
UUID=90f63e9b-86ab-455c-b555-b8e28ecec13b /var/MSAdocuments/public ext4 defaults 0 2
#UUID=4975df26-0ee2-4ef9-838d-414d77e0f697 /var/MSAdocuments/private xfs defaults 0 2
192.168.10.2:/var/local/share/webshop-backup /mnt/msa-server2-backup nfs rw,sync,hard,intr 0 0


root@HK-MSA-DEB6-32-SHOP2:/dev/disk/by-id# fdisk -l

Disk /dev/sda: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009ae9e

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          32      248832   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              32        6527    52176897    5  Extended
/dev/sda5              32        6527    52176896   8e  Linux LVM

Disk /dev/sdb: 128.8 GB, 128849018880 bytes
255 heads, 63 sectors/track, 15665 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1       15665   125829081   8e  Linux LVM

Disk /dev/sdc: 1649.3 GB, 1649267441664 bytes
255 heads, 63 sectors/track, 200512 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0bf85aa1

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1      200512  1610612608+  8e  Linux LVM

Disk /dev/sdd: 1649.3 GB, 1649267441664 bytes
255 heads, 63 sectors/track, 200512 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd19c2d7c

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1      200512  1610612608+  8e  Linux LVM

Disk /dev/dm-0: 51.4 GB, 51355058176 bytes
255 heads, 63 sectors/track, 6243 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-0 doesn't contain a valid partition table

Disk /dev/dm-1: 2071 MB, 2071986176 bytes
255 heads, 63 sectors/track, 251 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-1 doesn't contain a valid partition table

Disk /dev/dm-2: 3298.5 GB, 3298526494720 bytes
255 heads, 63 sectors/track, 401023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-2 doesn't contain a valid partition table

Disk /dev/dm-3: 128.8 GB, 128844824576 bytes
255 heads, 63 sectors/track, 15664 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/dm-3 doesn't contain a valid partition table

编辑2:

root@HK-MSA-DEB6-32-SHOP2:/# pvscan
  PV /dev/sdc1   VG temp_vslide            lvm2 [1.50 TiB / 0    free]
  PV /dev/sdd1   VG temp_vslide            lvm2 [1.50 TiB / 0    free]
  PV /dev/sdb1   VG MSAdocuments           lvm2 [120.00 GiB / 0    free]
  PV /dev/sda5   VG HK-MSA-DEB6-32-SHOP1   lvm2 [49.76 GiB / 0    free]
  Total: 4 [3.17 TiB] / in use: 4 [3.17 TiB] / in no VG: 0 [0   ]

好吧,现在我完全困惑了......有两个名为“temp_vslide”的卷组,但它们没有安装在任何地方?

编辑我不断寻找这两个驱动器的用法

root@HK-MSA-DEB6-32-SHOP2:/var/local/share/msa-server2-backup/mysql# pvscan
  PV /dev/sdc1   VG temp_vslide            lvm2 [1.50 TiB / 0    free]
  PV /dev/sdd1   VG temp_vslide            lvm2 [1.50 TiB / 0    free]
  PV /dev/sdb1   VG MSAdocuments           lvm2 [120.00 GiB / 0    free]
  PV /dev/sda5   VG HK-MSA-DEB6-32-SHOP1   lvm2 [49.76 GiB / 0    free]
  Total: 4 [3.17 TiB] / in use: 4 [3.17 TiB] / in no VG: 0 [0   ]

root@HK-MSA-DEB6-32-SHOP2:/var/local/share/msa-server2-backup/mysql# lvdisplay
  --- Logical volume ---
  LV Name                /dev/temp_vslide/tsy
  VG Name                temp_vslide
  LV UUID                baAN28-RiLO-PfPj-mS6c-4Jef-zwnx-tS9vEA
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                3.00 TiB
  Current LE             786430
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:2

root@HK-MSA-DEB6-32-SHOP2:/mnt/temp_vslide# dmsetup info
Name:              temp_vslide-tsy
State:             ACTIVE
Read Ahead:        256
Tables present:    LIVE
Open count:        0
Event number:      0
Major, minor:      254, 2
Number of targets: 2
UUID: LVM-yWxHUf3aTDZJ3K0ya4PRl4oDujG0si4jbaAN28RiLOPfPjmS6c4JefzwnxtS9vEA

root@HK-MSA-DEB6-32-SHOP2:~# ls -la /mnt/temp_vslide/
total 8
drwxr-xr-x 2 root root 4096 Nov 14  2013 .
drwxr-xr-x 6 root root 4096 Nov 14  2013 ..

root@HK-MSA-DEB6-32-SHOP2:~# ls -la /dev/temp_vslide/tsy
lrwxrwxrwx 1 root root 7 Oct 22 20:19 /dev/temp_vslide/tsy -> ../dm-2

答案1

您还可以尝试:

sudo pvscan

这将显示逻辑卷管理器是否正在使用任何磁盘。您还可以使用 fdisk 确定每个物理驱动器对应哪个设备:

sudo fdisk -l /dev/sda
sudo fdisk -l /dev/sdb
sudo fdisk -l /dev/sbc
sudo fdisk -l /dev/sdd

答案2

lsblk将显示磁盘的安装点。

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