Seagate ST34572WC Spezifikationen PDF herunterladen (Seite 47)

lvmtab, lvmtab_p

LVM has a well known configuration file /etc/lvmtab. With the introduction of Version 2.x volume

groups, LVM uses a new configuration file, /etc/lvmtab_p. The differences between the two

versions are as follows:

 /etc/lvmtab is a private binary file. It contains information only related to Version 1.0 volume

groups. It is compatible with all supported HP-UX releases.

 /etc/lvmtab_p is a new private binary file. It contains information only related to Version 2.x

volume groups. It has a different internal structure from lvmtab and contains additional

information.

For example:

# strings /etc/lvmtab_p

/dev/vgtestl2

A0000000000000004Sun Mar 16 03:02:19 2007241fa9de-dba3-11da-9cd2-

23efa80dc3e7

/dev/disk/disk79

/dev/disk/disk80

/dev/disk/disk81

/dev/disk/disk82

/dev/disk/disk83

/dev/disk/disk84

/dev/disk/disk85

For more details see the following white papers available from the docs.hp.com website:

 HP-UX Logical Volume Manager and MirrorDisk/UX Release Notes

 HP-UX 11i v3 March 2008 (B.11.31)

 HP-UX LVM Supported Limits

 LVM Version 2.0 Volume Groups in HP-UX 11i v3

1.0 Minor Number Encoding:

Logical volume number

01 (managed by LVM)

Volume group

number 18

(picked by customer)

Note: first 8 bits

2.0 Minor Number Encoding:

Logical volume

number (managed

by LVM)

Volume group number 20

(picked by customer or LVM)

Reserved

Bits 11 & 23 Reserved. If non

zero then no assumptions can

be made about logical volume

or volume group number

brw-r----- 1 root sys 128 0x014000 Jun 23 2006 lvol1

brw-r----- 1 root sys 64 0x120001 Jun 23 2006 lvol1

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 66 67

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