Linux SWAP的查看与维护

1.查看SWAP[root@www.linuxidc.com /]# cat /proc/swaps
Filename                                Type            Size    Used    Priority
/dev/sdb1                               partition       2096440 8       -1
/tmp/swap                               file            65520   0       -32.通过DD创建boot etc initrd lost+found misc   opt root selinux sys test1 usr
[root@www.linuxidc.com /]# dd if=/dev/zero f=/tmp/swap bs=4k count=16382
读入了 16382+0 个块
输出了 16382+0 个块
[root@www.linuxidc.com /]# mkswap /tmp/swap
Setting up swapspace version 1, size = 67096 kB
[root@www.linuxidc.com /]# free
             total       used       free     shared    buffers     cached
Mem:        384704     364624      20080          0      17180     305472
-/+ buffers/cache:      41972     342732
Swap:      2096440          8    2096432       swapon [-s]
[root@www.linuxidc.com /]# swapon /tmp/swap
[root@www.linuxidc.com /]# free
             total       used       free     shared    buffers     cached
Mem:        384704     364560      20144          0      17196     305456
-/+ buffers/cache:      41908     342796
Swap:      2161960          8    2161952开机自动启动：LABEL=/                 /                       ext3    defaults        1 1
LABEL=/home             /home                   ext3    defaults        1 2
LABEL=/var              /var                    ext3    defaults        1 2
LABEL=/tmp              /tmp                    ext3    defaults        1 2
LABEL=/usr              /usr                    ext3    defaults        1 2
LABEL=/boot             /boot                   ext3    defaults        1 2
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts gid=5,mode=620 0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
LABEL=SWAP              swap                    swap    defaults        0 0
/home/swap              swap                    swap    defaults        0 03.直接再加一棵硬盘，并且将其中某个扇区规划为 swap 的 filesystem[root@www.linuxidc.com /]# fdisk /dev/sdcThe number of cylinders for this disk is set to 1044.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1） software that runs at boot time （e.g., old versions of LILO）
2） booting and partitioning software from other OSs
   （e.g., DOS FDISK, OS/2 FDISK）Command （m for help）: t
Partition number （1-5）: 3
Hex code （type L to list codes）: L 0 Empty           1e Hidden W95 FAT1 75 PC/IX           be Solaris boot
1 FAT12           24 NEC DOS         80 Old Minix       bf Solaris
2 XENIX root      39 Plan 9          81 Minix / old Lin c1 DRDOS/sec （FAT-
3 XENIX usr       3c PartitionMagic 82 Linux swap      c4 DRDOS/sec （FAT-
4 FAT16 <32M      40 Venix 80286     83 Linux           c6 DRDOS/sec （FAT-
5 Extended        41 PPC PReP Boot   84 OS/2 hidden C: c7 Syrinx
6 FAT16           42 SFS             85 Linux extended da Non-FS data
7 HPFS/NTFS       4d QNX4.x          86 NTFS volume set db CP/M / CTOS / .
8 AIX             4e QNX4.x 2nd part 87 NTFS volume set de Dell Utility
9 AIX bootable    4f QNX4.x 3rd part 8e Linux LVM       df BootIt
a OS/2 Boot Manag 50 OnTrack DM      93 Amoeba          e1 DOS access
b W95 FAT32       51 OnTrack DM6 Aux 94 Amoeba BBT      e3 DOS R/O
c W95 FAT32 （LBA） 52 CP/M            9f BSD/OS          e4 SpeedStor
e W95 FAT16 （LBA） 53 OnTrack DM6 Aux a0 IBM Thinkpad hi eb BeOS fs
f W95 Ext"d （LBA） 54 OnTrackDM6      a5 FreeBSD         ee EFI GPT
10 OPUS            55 EZ-Drive        a6 OpenBSD         ef EFI （FAT-12/16/
11 Hidden FAT12    56 Golden Bow      a7 NeXTSTEP        f0 Linux/PA-RISC b
12 Compaq diagnost 5c Priam Edisk     a8 Darwin UFS      f1 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor       a9 NetBSD          f4 SpeedStor
16 Hidden FAT16    63 GNU HURD or Sys ab Darwin boot     f2 DOS secondary
17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs         fd Linux raid auto
18 AST SmartSleep 65 Novell Netware b8 BSDI swap       fe LANstep
1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid ff BBT
1c Hidden W95 FAT3
Hex code （type L to list codes）: 82
Changed system type of partition 3 to 82 （Linux swap）Command （m for help）: w
The partition table has been altered！Calling ioctl（） to re-read partition table.WARNING: Re-reading the partition table failed with error 16: 设备或资源忙.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.[root@www.linuxidc.com /]# mkswap /dev/sdc3
Setting up swapspace version 1, size = 329007 kB
[root@www.linuxidc.com /]# swapon /dev/sdc3Linux下用rinetd做端口转发如何在Linux下卸载VMware Workstation相关资讯 Linux教程

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