在AIX上增加文件系统空间

显示活动的卷组

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dhdev01 / # lsvg -o
bkvg
vg01
vg02
rootvg
列出对应的物理卷
dhdev01 / # lsvg -p rootvg
rootvg:
PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION
hdisk0            active            546         111         00..00..00..02..109
dhdev01 / # lsvg -p vg01
vg01:
PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION
hdisk1            active            546         135         00..00..00..26..109
dhdev01 / # lsvg -p vg02
vg02:
PV_NAME           PV STATE          TOTAL PPs   FREE PPs    FREE DISTRIBUTION
hdisk2            active            546         109         00..00..00..00..109


dhdev01 / # ls -al /dev/rootvg
crw-rw----   1 root     system       10,  0 Dec 19 2003  /dev/rootvg

显示卷组的基本信息

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dhdev01 / # lsvg rootvg
VOLUME GROUP:   rootvg                   VG IDENTIFIER:  00585c0f00004c00000000f98e1e377f
VG STATE:       active                   PP SIZE:        128 megabyte(s)
VG PERMISSION:  read/write               TOTAL PPs:      546 (69888 megabytes)
MAX LVs:        256                      FREE PPs:       111 (14208 megabytes)
LVs:            16                       USED PPs:       435 (55680 megabytes)
OPEN LVs:       13                       QUORUM:         2
TOTAL PVs:      1                        VG DESCRIPTORS: 2
STALE PVs:      0                        STALE PPs:      0
ACTIVE PVs:     1                        AUTO ON:        yes
MAX PPs per PV: 1016                     MAX PVs:        32
LTG size:       128 kilobyte(s)          AUTO SYNC:      no
HOT SPARE:      no                       BB POLICY:      relocatable

显示该卷组存在的所有逻辑卷

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dhdev01 / # lsvg -l rootvg
rootvg:
LV NAME             TYPE       LPs   PPs   PVs  LV STATE      MOUNT POINT
hd5                 boot       1     1     1    closed/syncd  N/A
hd6                 paging     32    32    1    open/syncd    N/A
hd8                 jfslog     1     1     1    open/syncd    N/A
hd4                 jfs        3     3     1    open/syncd    /
hd2                 jfs        88    88    1    open/syncd    /usr
hd9var              jfs        8     8     1    open/syncd    /var
hd3                 jfs        22    22    1    open/syncd    /tmp
hd1                 jfs        8     8     1    open/syncd    /home
hd10opt             jfs        3     3     1    open/syncd    /opt
lg_dumplv           sysdump    8     8     1    open/syncd    N/A
lv00                jfs        148   148   1    open/syncd    /u01
lv01                jfs        24    24    1    open/syncd    /u02
lv02                jfs        24    24    1    open/syncd    /oradisk
dh                  jfs        32    32    1    open/syncd    /dh
loglv03             jfs2log    1     1     1    closed/syncd  N/A
fslv00              jfs2       32    32    1    closed/syncd  /cd0

显示所有物理卷的基本信息

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dhdev01 / # lspv
hdisk0          00585c0f8e1e2d11                    rootvg          active
hdisk1          00585c0f746525a4                    vg01            active
hdisk2          00585c0f545aca55                    vg02            active
hdisk3          00585c0f418e185b                    bkvg            active

显示某个物理卷的基本信息

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dhdev01 / # lspv hdisk0
PHYSICAL VOLUME:    hdisk0                   VOLUME GROUP:     rootvg
PV IDENTIFIER:      00585c0f8e1e2d11 VG IDENTIFIER     00585c0f00004c00000000f98e1e377f
PV STATE:           active
STALE PARTITIONS:   0                        ALLOCATABLE:      yes
PP SIZE:            128 megabyte(s)          LOGICAL VOLUMES:  16
TOTAL PPs:          546 (69888 megabytes)    VG DESCRIPTORS:   2
FREE PPs:           111 (14208 megabytes)    HOT SPARE:        no
USED PPs:           435 (55680 megabytes)
FREE DISTRIBUTION:  00..00..00..02..109
USED DISTRIBUTION:  110..109..109..107..00

显示该物理卷上存在的所有逻辑卷

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dhdev01 / # lspv -l hdisk0
hdisk0:
LV NAME               LPs   PPs   DISTRIBUTION          MOUNT POINT
hd5                   1     1     01..00..00..00..00    N/A
lv00                  148   148   53..43..17..35..00    /u01
dh                    32    32    32..00..00..00..00    /dh
lv02                  24    24    24..00..00..00..00    /oradisk
hd6                   32    32    00..32..00..00..00    N/A
lg_dumplv             8     8     00..08..00..00..00    N/A
lv01                  24    24    00..16..08..00..00    /u02
hd2                   88    88    00..10..65..13..00    /usr
hd8                   1     1     00..00..01..00..00    N/A
hd4                   3     3     00..00..01..02..00    /
hd9var                8     8     00..00..04..04..00    /var
hd3                   22    22    00..00..06..16..00    /tmp
hd1                   8     8     00..00..06..02..00    /home
hd10opt               3     3     00..00..01..02..00    /opt
loglv03               1     1     00..00..00..01..00    N/A
fslv00                32    32    00..00..00..32..00    /cd0

如果卷组内只有一个物理卷，那么卷组内的逻辑卷信息和物理卷内的逻辑卷信息是一致的。

显示物理卷中的每个物理分区(outer edge, outer middle, center, inner middle, inner edge)

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dhdev01 / # lspv -p hdisk1
hdisk1:
PP RANGE  STATE   REGION        LV NAME             TYPE       MOUNT POINT
  1-32    used    outer edge    db                  jfs        /dh/db
 33-36    used    outer edge    rdhdev_test2        raw        N/A
 37-74    used    outer edge    testdb              jfs        /test
 75-110   used    outer edge    rdhdev_test         raw        N/A
111-190   used    outer middle  db                  jfs        /dh/db
191-191   used    outer middle  loglv00             jfslog     N/A
192-219   used    outer middle  patch               jfs        /opt/patch
220-223   used    center        patch               jfs        /opt/patch
224-261   used    center        testdb2             jfs        /test2
262-281   used    center        db                  jfs        /dh/db
282-287   used    center        patch               jfs        /opt/patch
288-328   used    center        db                  jfs        /dh/db
329-409   used    inner middle  db                  jfs        /dh/db
410-410   used    inner middle  lv03                raw        N/A
411-411   used    inner middle  rawtest             raw        N/A
412-437   free    inner middle
438-546   free    inner edge

显示某个逻辑卷的信息

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dhdev01 / # lslv hd1
LOGICAL VOLUME:     hd1                    VOLUME GROUP:   rootvg
LV IDENTIFIER:      00585c0f00004c00000000f98e1e377f.8 PERMISSION:     read/write
VG STATE:           active/complete        LV STATE:       opened/syncd
TYPE:               jfs                    WRITE VERIFY:   off
MAX LPs:            512                    PP SIZE:        128 megabyte(s)
COPIES:             1                      SCHED POLICY:   parallel
LPs:                8                      PPs:            8
STALE PPs:          0                      BB POLICY:      relocatable
INTER-POLICY:       minimum                RELOCATABLE:    yes
INTRA-POLICY:       center                 UPPER BOUND:    32
MOUNT POINT:        /home                  LABEL:          /home
MIRROR WRITE CONSISTENCY: on/ACTIVE
EACH LP COPY ON A SEPARATE PV ?: yes
Serialize IO ?:     NO
dhdev01 / # df -g
Filesystem    GB blocks      Free %Used    Iused %Iused Mounted on
/dev/hd4           0.38      0.23   40%     3349     2% /
/dev/hd2          11.00      2.45   78%   108362     4% /usr
/dev/hd9var        1.00      0.48   52%      816     1% /var
/dev/hd3           2.75      1.87   33%    10855     2% /tmp
/dev/hd1           1.00      0.46   55%     4222     2% /home
/proc                 -         -    -         -     -  /proc
/dev/hd10opt       0.38      0.17   56%     3987     5% /opt
/dev/lv00         18.50      2.15   89%    97608     3% /u01
/dev/lv01          3.00      0.70   77%       36     1% /u02
/dev/lv02          3.00      2.91    4%       17     1% /oradisk
/dev/dh            4.00      2.56   36%    69153     7% /dh
/dev/db           31.75     18.40   43%       57     1% /dh/db
/dev/patch         4.75      0.26   95%     7607     1% /opt/patch
/dev/piers         4.38      0.92   80%    27870     3% /piers
/dev/piersdb      12.50      1.44   89%       55     1% /piers/db
/dev/uatbkup      19.75     19.03    4%       30     1% /piers/db/uatbkup
/dev/dailybkup      9.88      7.33   26%     2450     1% /piers/dailybkup
/dev/dbbkuplv     40.00     13.42   67%    91429     3% /dbbkup

PP SIZE * PPs(128 megabyte(s) * 8) == 1024M
表示逻辑卷hd1(Filesystem: /dev/hd1, Mounted on: /home)有1.00 GB blocks

查看逻辑卷在物理卷上的分布

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dhdev01 / # lslv -l hd1
hd1:/home
PV                COPIES        IN BAND       DISTRIBUTION
hdisk0            008:000:000   75%           000:000:006:002:000


dhdev01 / # lslv -m hd1
hd1:/home
LP    PP1  PV1               PP2  PV2               PP3  PV3
0001  0225 hdisk0
0002  0241 hdisk0
0003  0242 hdisk0
0004  0309 hdisk0
0005  0310 hdisk0
0006  0311 hdisk0
0007  0336 hdisk0
0008  0413 hdisk0
dhdev01 / # lspv -p hdisk0|grep /home
225-225   used    center        hd1                 jfs        /home
241-242   used    center        hd1                 jfs        /home
309-311   used    center        hd1                 jfs        /home
336-336   used    inner middle  hd1                 jfs        /home
413-413   used    inner middle  hd1                 jfs        /home

说明：
DISTRIBUTION(000:000:006:002:000) 表示center有6个物理分区(对应第1-6的逻辑分区)，inner middle有2个物理分区(对应7-8的逻辑分区)
COPIES(008:000:000) 表示第一个物理卷上有8个物理分区，没有第二和第三的拷贝分区
IN BAND(75%) 表示center[6] / center[6] + inner middle[2] = 0.75

增加某个文件系统的空间

  1. df -g | grep /home 查看/home所属的逻辑卷，假设是hd1
  2. lslv -l hd1 查看hd1所属的物理卷，假设是hdisk0
  3. lspv -p hdisk0 查看物理卷的可用空间
  4. smitty chfs 或者 chfs -a size=+10G /home
  5. 如果执行上述命令时出现问题:Maximum allocation for logical volume hd1，运行命令
    chlv -x 800 hd1 或 smitty chlv 或 smitty lv
    Please refer to how-to-expand-a-filesystem-in-aix-df-lsvg-chfs or practical-guide-to-aix-logical-volume-management
  6. extendlv与chfs是很接近的，但增加文件空间需要用chfs，不要用extendlv，因为extendlv会扩大逻辑分区，但不能反映的文件空间上的。

参考:

http://www.web-manual.net/aix/0516-787-extendlv-maximum-allocation-for-logical-volume-hd11admin-is-512/
http://wenku.baidu.com/view/f02cac4533687e21af45a960.html
http://unix.ittoolbox.com/groups/technical-functional/ibm-aix-l/in-band-in-lslv-l-1110087
http://unix.ittoolbox.com/groups/technical-functional/ibm-aix-l/increasing-the-filesystem-size-2639934
http://www.tek-tips.com/viewthread.cfm?qid=1150552
http://www.unix.com/aix/25249-increase-logical-partition.html

In-band解释

http://unix.ittoolbox.com/groups/technical-functional/ibm-aix-l/in-band-in-lslv-l-1110087
http://pic.dhe.ibm.com/infocenter/powersys/v3r1m5/index.jsp?topic=/iphcg/lslv.htm
http://www.ibm.com/developerworks/forums/thread.jspa?messageID=14532561

extendlv与chfs的区别

http://networktechnologist.com/tips-aix-lvm.html
http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.cmds/doc/aixcmds2/extendlv.htm