Shulou(Shulou.com)06/02 Report--

[root@testdb:/#] character devices used by pvcreate / dev/rdsk/c2t1d4

Physical volume "/ dev/rdsk/c2t1d4" has been successfully created.

[root@testdb:/#] vgcreate vgora / dev/dsk/c2t1d4 # uses block devices

Increased the number of physical extents per physical volume to 50431.

Vgcreate: Volume group "/ dev/vgora" could not be created:

VGRA for the disk is too big for the specified parameters. Increase the

Extent size or decrease max_PVs/max_LVs and try again.

[root@testdb:/#] diskinfo / dev/rdsk/c2t1d4

SCSI describe of / dev/rdsk/c2t1d4:

Vendor: HITACHI

Product id: DF600F

Type: direct access

Size: 206569472 Kbytes

Bytes per sector: 512

The default size of a PE Size is 4m memory so.4Mbike 50431mm 201724M < 201728M (206569472ax 1024), so to increase the size of the PE, set PE Size=32M.

[root@testdb:/#] vgcreate-s 32 vgora / dev/dsk/c2t1d4

Increased the number of physical extents per physical volume to 6303.

Volume group "/ dev/vgora" has been successfully created.

Volume Group configuration for / dev/vgora has been saved in / etc/lvmconf/vgora.conf

[root@testdb:/#] lvcreate-L 40G-n lvoracle vgora # does not recognize G.so..delete

[root@testdb:/#] lvcreate-L 80g-n lvoradata vgora

[root@testdb:/#] lvremove / dev/vgora/lvoracle

[root@testdb:/#] lvremove / dev/vgora/lvoradata

[root@testdb:/#] lvcreate-L 40960M-n lvoracle vgora

[root@testdb:/#] lvcreate-L 81920M-n lvoradata vgora

[root@testdb:/#] vgdisplay-v vgora # re-view the information.

[root@testdb:/#] newfs-F vxfs / dev/vgora/lvoracle # that requires a character device is a letter with r. (for bare devices with r, without being used by file systems)

UX:vxfs newfs: ERROR: VMur3-21623: / dev/vgora/lvoracle is not a character device

[root@testdb:/#] newfs-F vxfs / dev/vgora/rlvoracle

[root@testdb:/#] newfs-F vxfs / dev/vgora/rlvoradata

[root@testdb:/#] mkdir-p / oracle/testdb/oracle

[root@testdb:/#] mkdir-p / oracle/testdb/oradata

[root@testdb:/#] mount / dev/vgora/lvoracle / oracle/testdb/oracle

[root@testdb:/#] mount / dev/vgora/lvoradata / oracle/testdb/oradata

At this time, you can check whether it is mounted through bdf.

If you want the system to mount filesystem, you need to add a record in / etc/fstab.

[root@testdb:/#] vi / etc/fstab # add the following.

/ dev/vgora/lvoracle / oracle/testdb/oracle vxfs delaylog 0 2

/ dev/vgora/lvoradata / oracle/testdb/oradata vxfs delaylog 0 2

[root@testdb:/#] mount-a

[root@testdb:/#] lvextend-L 92160M / dev/vgora/lvoradata # increases lv size

[root@testdb:/#] extendfs-F vxfs / dev/vgora/lvoradata # filesystem cannot be operated online. Umount operation is required

UX:vxfs extendfs: ERROR: Vmur3-20144: / dev/vgora/lvoradata is mounted, cannot extend.

[root@testdb:/#] fsadm-F vxfs-b 92160M / oracle/testdb/oradata # uses fsadm to operate online.

UX:vxfs fsadm: INFO: Vmur3-25942: / dev/vgora/rlvoradata size increased from 83886080 sectors to 94371840 sectors

[root@testdb:/#] umount / oracle/testdb/oradata

[root@testdb:/#] lvreduce-L 81920m / dev/vgora/lvoradata

Root@testdb:/#] mount / dev/vgora/lvoradata / oracle/testdb/oradata

UX:vxfs mount: ERROR: VMur3-24706: / dev/vgora/lvoradata no such device or filesystem on it missing one or more devices

[root@testdb:/#] newfs-F vxfs / dev/vgora/rlvoradata # can only do so. But in this way there is no data in it.

[root@testdb:/#] newfs-o largefiles-F vxfs / dev/vgora/rlvoradata # supports up to 2G without adding-o, and 128G after adding.

[root@testdb:/#] mount-a

[root@testdb:/dev/vgasm#] pvcreate / dev/rdsk/c2t1d3

Pvcreate: Could not perform LVM operation on VxVM disk "/ dev/rdsk/c2t1d3".

[root@testdb:/dev/vgasm#] pvcreate-f / dev/rdsk/c2t1d3 # plus-f parameter to enforce

Physical volume "/ dev/rdsk/c2t1d3" has been successfully created.

[root@testdb:/dev/vgasm#] vgextend vgora / dev/dsk/c2t1d3

[root@testdb:/dev/vgasm#] vgreduce vgora / dev/dsk/c2t1d3

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