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This article shows you how HP-UNIX creates a file system, which is concise and easy to understand, which will definitely brighten your eyes. I hope you can get something through the details of this article.

HP-UNIX creates a file system

1. System environment

# uname-a

HP-UX callcdb2 B.11.31 U ia64

two。 View VG groups

# ll / dev/vg*/group

Crw-r- 1 root sys 64 0x000000 Jun 9 12:13 / dev/vg00/group

3. Create a physical volume

# pvcreate / dev/rdisk/disk162

Physical volume "/ dev/rdisk/disk162" has been successfully created.

4. Create VG

4-1. Create VG group name

# mkdir / dev/vg_cdc

# ll / dev/vg*/group

Crw-r- 1 root sys 64 0x000000 Jun 9 12:13 / dev/vg00/group

4-2. Give a unique 0x010000 to the VG group

# mknod / dev/vg_cdc/group c 64 0x010000

# ll / dev/vg*/group

Crw-r- 1 root sys 64 0x000000 Jun 9 12:13 / dev/vg00/group

Crw-r--r-- 1 root sys 64 0x010000 Aug 18 14:19 / dev/vg_cdc/group

4-3. Create a VG group and write to the configuration file

# vgcreate-s 32 / dev/vg_cdc / dev/disk/disk162

Increased the number of physical extents per physical volume to 1599.

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

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

5. Create a LV and specify the LV size

# lvcreate-L 40000-n lv_cdc vg_cdc

Logical volume "/ dev/vg_cdc/lv_cdc" has been successfully created with

Character device "/ dev/vg_cdc/rlv_cdc".

Logical volume "/ dev/vg_cdc/lv_cdc" has been successfully extended.

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

6. Formatting

# newfs-F vxfs-o largefiles / dev/vg_cdc/rlv_cdc

Version 7 layout

40960000 sectors, 40960000 blocks of size 1024, log size 65536 blocks

Largefiles supported

7. Create a mount point

# mkdir / cdc

8. Mounting

# mount / dev/vg_cdc/lv_cdc / cdc

Schedule

1.vgexport vg_cdc-deletes a VG volume group

2.pvcreate-f / dev/rdisk/disk162-if you add the F parameter when recreating the VG volume group

3.vgchange-an (y) vg_cdc-- stops or activates the logical volume group.

This problem occurs after changing the SAS card and rebooting. Just reactivate the logical volume group.

Vgdisplay: Volume group not activated.

Vgdisplay: Cannot display volume group "/ dev/vg_cdc".

Solution: vgchange-a y / dev/vg_cdc

The above is how HP-UNIX creates a file system. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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