VERITAS Storage Foundation Basic: 設定編

さて、インストールが終わったので、設定です。

まあ、
http://straycats.blog.so-net.ne.jp/2007-01-15-2
に書いた内容をまとめなおしただけのような(^^;

インストールが終わると、/opt以下にインストールされるので、そこに移動します。

# cd /opt
# ls
VRTS       VRTSccg    VRTSfspro  VRTSmh   VRTSperl  VRTSvmpro
VRTSaa     VRTSdcli   VRTSfssdk  VRTSob   VRTSspt   VRTSvxfi
VRTSalloc  VRTSddlpr  VRTSicsco  VRTSobc  VRTSvdid  VRTSvxms
VRTSat     VRTSdsa    VRTSmapro  VRTSpbx  VRTSvlic

まずは、vxdiskで確認です。

# find . -name vxdisk
./VRTS/bin/vxdisk
# ./VRTS/bin/vxdisk path 
SUBPATH                     DANAME               DMNAME       GROUP        STATE
sda                         sda                  -            -            ENABLED
sdb                         sdb                  -            -            ENABLED

今回使うコマンドは、すべて/opt/VRTS/binの下にあります。
ってことで、以下、いちいち調べるのは省略。
お次は、vxdiskadmで管理したいディバイスを管理対象にします。

# ./VRTS/bin/vxdiskadm

Volume Manager Support Operations
Menu:: VolumeManager/Disk

 1	Add or initialize one or more disks
 2	Encapsulate one or more disks
 3	Remove a disk
 4	Remove a disk for replacement
 5	Replace a failed or removed disk
 6	Mirror volumes on a disk
 7	Move volumes from a disk
 8	Enable access to (import) a disk group
 9	Remove access to (deport) a disk group
 10	Enable (online) a disk device
 11	Disable (offline) a disk device
 12	Mark a disk as a spare for a disk group
 13	Turn off the spare flag on a disk
 14	Unrelocate subdisks back to a disk
 15	Exclude a disk from hot-relocation use
 16	Make a disk available for hot-relocation use
 17	Prevent multipathing/Suppress devices from VxVM's view
 18	Allow multipathing/Unsuppress devices from VxVM's view
 19	List currently suppressed/non-multipathed devices
 20	Change the disk naming scheme
 21	Change/Display the default disk layouts
 22	Mark a disk as allocator-reserved for a disk group
 23	Turn off the allocator-reserved flag on a disk
 list	List disk information


 ?	Display help about menu
 ??	Display help about the menuing system
 q	Exit from menus

Select an operation to perform: 1

ここでは「1」の「Add or initialize one or more disks」を選びます。
すると...

Add or initialize disks
Menu:: VolumeManager/Disk/AddDisks

  Use this operation to add one or more disks to a disk group.  You can
  add the selected disks to an existing disk group or to a new disk group
  that will be created as a part of the operation. The selected disks may
  also be added to a disk group as spares. Or they may be added as
  nohotuses to be excluded from hot-relocation use. The selected
  disks may also be initialized without adding them to a disk group
  leaving the disks available for use as replacement disks.

  More than one disk may be entered at the prompt.  Here are
  some disk selection examples:

  sda:		add only disk sda
  sdb hdc:	add both disk sdb and hdc
  xyz_0 :     a single disk (in the enclosure based naming scheme)
  xyz_ :      all disks on the enclosure whose name is xyz

Select disk devices to add: [<pattern-list>,list,q,?] sdb

なんて出てくるので、今回LVMの管理下にないsdbを指定します。

  Here is the disk selected.  Output format: [Device_Name]

  sdb

Continue operation? [y,n,q,?] (default: y) 

間違えてない限り「Enter」を押して、先に進みます。

  You can choose to add this disk to an existing disk group, a
  new disk group, or leave the disk available for use by future
  add or replacement operations.  To create a new disk group,
  select a disk group name that does not yet exist.  To leave
  the disk available for future use, specify a disk group name
  of "none".

Which disk group [<group>,none,list,q,?] (default: centos) 

ここから先は、はいはいはいはい…と進めましょう。

Create a new group named centos? [y,n,q,?] (default: y)

Create the disk group as a CDS disk group? [y,n,q,?] (default: y)

Use a default disk name for the disk? [y,n,q,?] (default: y)

Add disk as a spare disk for centos? [y,n,q,?] (default: n)

Exclude disk from hot-relocation use? [y,n,q,?] (default: n)

Add site tag to disk? [y,n,q,?] (default: n)

A new disk group will be created named centos and the selected disks
will be added to the disk group with default disk names.

sdb

Continue with operation? [y,n,q,?] (default: y)

Initializing device sdb.

Enter desired private region length
[<privlen>,q,?] (default: 65536)

VxVM NOTICE V-5-2-120
Creating a new disk group named centos containing the disk
device sdb with the name centos01.

Add or initialize other disks? [y,n,q,?] (default: n)
これで元のメニュー画面に戻るので「list」で確認してみます。

Select an operation to perform: list


List disk information
Menu:: VolumeManager/Disk/ListDisk

  Use this menu operation to display a list of disks.  You can
  also choose to list detailed information about the disk at
  a specific disk device address.

Enter disk device or "all" [<address>,all,q,?] (default: all) 

DEVICE       DISK         GROUP        STATUS
sda          -            -            online invalid
sdb          centos01     centos       online

Device to list in detail [<address>,none,q,?] (default: none) 

またメニューに戻りますが、今度は「q」で終了します。

お次は、vxassistでディスクグループから領域をを割り当てます。
なお、グループを指定していない場合は、デフォルトグループから割り当てられます。
以下の例では、4GBを「vol0」という名前で割り当てています。

# ./VRTS/bin/vxassist make vol0 4g
# ls -l /dev/vx/rdsk/DGcentos/vol0 
crw-------  1 root root 199, 65534  2月  1 22:36 /dev/vx/rdsk/centos/vol0
# mkfs -t vxfs /dev/vx/rdsk/centos/vol0
    version 7 layout
    8388608 sectors, 4194304 blocks of size 1024, log size 16384 blocks
    largefiles supported

実際に毎回起動時にmountするには、/etc/fstabに書き込みますが、最終行に以下のように追加します。
なおmount pointは「/VxFsVol0」としました。

/dev/vx/dsk/centos/vol0    /VxFsVol0    vxfs    defaults    1 2

ちなみにmountするのはrdskじゃなくてdskの方。
rdskを指定すると、block deviceぢゃない！と怒られます（怒られました(^^;）

で、あとは

# mount /VxFsVol0
# cd /VxFsVol0/
# ls
lost+found

なんて具合にmountするだけです。

さて、これからが、今回の本題ですが、また今度。