CN108874317A - The automatic flash chamber of logical volume subregion and method under a kind of linux system - Google Patents
The automatic flash chamber of logical volume subregion and method under a kind of linux system Download PDFInfo
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- CN108874317A CN108874317A CN201810578893.6A CN201810578893A CN108874317A CN 108874317 A CN108874317 A CN 108874317A CN 201810578893 A CN201810578893 A CN 201810578893A CN 108874317 A CN108874317 A CN 108874317A
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- logical volume
- subregion
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
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Abstract
The present invention provides the automatic flash chamber of logical volume subregion, the devices under a kind of linux system to include：Input module, for inputting logical volume partition name to be expanded and the Disk name of logical volume is added；First obtains module, claims for obtaining volumegroup name according to logical volume partition name；Processing module for the disk dilatation of logical volume will to be added to logical volume subregion, and makes dilatation come into force.Logical volume dilatation step can be formed and be automated by the design, thus can be reduced manual operation, and reducing human factor influences, to improve efficiency, guarantee the safety of subregion.In addition, the present invention also provides the automatic expansion methods of logical volume subregion under a kind of linux system.
Description
Technical field
The present invention relates to design Storage fields, expand automatically more specifically to logical volume subregion under a kind of linux system
Capacitance device and method.
Background technique
Logical volume is to organize several disk partition or block device to form a big extension subregion, when in use
It is divided into logical volume subregion, is then formatted into different file system, carry uses.With directly use physical disk phase
There is lot of advantages than, logical volume, for example, can flexibly configure logical volume capacity, can be with dilatation or reduction logical volume subregion
Size and do not have to reformat subregion etc..
In the project, the case where frequently encountering under server system that subregion is inadequate, needing manual dilatation.Previous way is
Referring to document, go to execute step by step.Disadvantage of this is that complex steps, inefficiency, and there are certain risks.Such as
Fruit operator is unfamiliar with order or server apparatus situation, easily makes a fault operating, subregion is caused to occur
Failure causes loss of data.
Summary of the invention
For disadvantage mentioned above, the invention proposes the automatic flash chamber of logical volume subregion and method under a kind of linux system,
Logical volume dilatation step can be formed and be automated, thus can be reduced manual operation, reducing human factor influences, to improve
Efficiency guarantees the safety of subregion.
The embodiment of the invention provides the automatic flash chamber of logical volume subregion under a kind of linux system, the device packets
It includes：
Input module, for inputting logical volume partition name to be expanded and the Disk name of logical volume is added；
First obtains module, claims for obtaining volumegroup name according to logical volume partition name；
Processing module for the disk dilatation of logical volume will to be added to logical volume subregion, and makes dilatation come into force.
Further, the processing module includes：
First processing module will be added the disk partition of volume group and be formatted as lvm format；
Second processing module, by the partition creating formatted at physical volume；
Third processing module, volume group physical volume being added to where logical volume subregion to be expanded；
Fourth processing module, by space dilatation idle in volume group to logical volume subregion；
5th processing module, decision logic roll up partitioned file system format；
6th processing module makes dilatation come into force according to file system type synchronization file system.
Further, the device further includes：
Second obtains module, obtains and shows the system partitioning information after synchronizing.
The embodiment of the invention provides the automatic expansion method of logical volume subregion, the methods under a kind of linux system to be：
S1：It inputs logical volume partition name to be expanded and the Disk name of logical volume is added；
S2：Volumegroup name is obtained according to logical volume partition name to claim；
S3：The disk partition of volume group will be added and be formatted as lvm format；
S4：By the partition creating formatted at physical volume；
S5：Volume group physical volume being added to where logical volume subregion to be expanded；
S6：By space dilatation idle in volume group to logical volume subregion；
S7：Decision logic rolls up partitioned file system format；
S8：According to file system type synchronization file system, dilatation is made to come into force；
S9：Return to the system partitioning information after synchronizing.
Further, in step S2, by the order lvdisply under Linux system, the logical volume of current system is shown
Information obtains volumegroup name and claims.
Further, in step S3, disk partition is formatted as by lvm format by fdisk order.
Further, in step S7, using xfs_growfs command determination XFS format, resize2fs command determination is used
Ext, ext2, ext3, ext4 format.
Further, in step S8, the method that makes dilatation come into force：Subregion is rolled up by system command flush logic.
Further, the realization process of step S9 is：Df-lh order is executed, return system partition information is primarily to see and patrols
Collect the current size of volume subregion, Avail column.
The effect provided in summary of the invention is only the effect of embodiment, rather than invents all whole effects, above-mentioned
A technical solution in technical solution has the following advantages that or beneficial effect：
In the present invention, the integration executed by system command and program, on the one hand, integrate cumbersome step automatic
Change, reduces operating procedure, the time is saved, to improve efficiency；On the other hand, the program and instruction executed automatically, avoids
Human factor influences, and guarantees partition security.
Detailed description of the invention
Fig. 1 is the schematic diagram of device of the embodiment of the present invention；
Fig. 2 is the method flow diagram of the embodiment of the present invention.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
Embodiment
As shown in Figure 1, the embodiment of the present invention 1 provides the automatic flash chamber of logical volume subregion under a kind of linux system, institute
The device stated includes input module, the first acquisition module, processing module and the second acquisition module.
The input module, for inputting logical volume partition name to be expanded and the disk name of logical volume is added
Claim.
Described first obtains module, by lvdisply order, for obtaining volumegroup name according to logical volume partition name
Claim.
The processing module for the disk dilatation of logical volume will to be added to logical volume subregion, and makes dilatation come into force.
According to the process of processing, the processing module is divided into 6 parts, is first processing module, second processing respectively
Module, third processing module, fourth processing module, the 5th processing module, the 6th processing module.
Wherein, first processing module mainly passes through fdisk order.The disk partition of volume group and formatting will be added
For lvm format.Then, the partition creating that Second processing module is responsible for have formatted is at physical volume.Then, third handles mould
Block, volume group physical volume being added to where logical volume subregion to be expanded.Next, fourth processing module, hollow by volume group
Not busy space dilatation is to logical volume subregion.After the completion of dilatation, the 5th processing module is responsible for decision logic volume partitioned file system lattice
Formula, the mainly common format of difference ext, ext2, ext3, ext4 and XFS these types, finally, the 6th processing module is according to text
Part system type synchronization file system, makes dilatation come into force.
The second acquisition module obtains after the completion of dilatation and shows the system partitioning information after synchronizing, Ke Yicha
See capacity enlargement effect.
As shown in Fig. 2, the embodiment of the invention provides the automatic expansion method of logical volume subregion, institutes under a kind of linux system
The method stated is：
S1：It inputs logical volume partition name to be expanded (/dev/mapper/vg-home) and the magnetic of logical volume is added
Disk title (/dev/sdb).
S2：It obtains volumegroup name according to logical volume partition name to claim, specific means is：Using lvdisply order, from
In lvdisplay information, the title of lv and the title of vg are first matched, then extracts vg title.
When actually executing, implementation procedure is as follows：
Screen in the information that lvdisplay is exported using order, orders and be：lvdisplay|sed-n'/
Home/ ,/VG/p'| awk'{ print $ 3 } ' | sed-n'3p'lvdisplay | sed-n'/home/ ,/VG/p', this order in
Home is logical volume partition name, can be used in script as variable, this order effect is exactly to print matching logic volume
The row of entitled home starts to all the elements between the row of matching VG, then prints the 3rd column using awk order
Lvdisplay | sed-n'/home/ ,/VG/p'| awk'{ print $ 3 } ', sed order is finally reused, the third line is printed,
Obtain the title lvdisplay of VG | sed-n'/home/ ,/VG/p'| awk'{ print $ 3 } ' | sed-n'3p'.
S3：The disk partition of volume group will be added and be formatted as lvm format.Wherein, physical volume is in logical volume management
The bottom of system can be the subregion on entire physical hard disk or actual physics hard disk.Volume group (VG) is built upon physics
On volume, a volume group at least will include a physical volume.Volume group can be exactly this in dynamic additive reason reel-to-reel group after establishing
The dilatation mentioned in application.Popular saying is exactly that volume group space is not much of that, and one piece of disk is added.
Formatting in step S3 realized by fdisk order, such as：Np1t8e is exactly the option of the inside, subregion lattice
The corresponding hexadecimal code of formula LVM is exactly 8e.
S4：By the partition creating formatted at physical volume.For example,/dev/sdb1 is exactly that physical hard disk/dev/sdb makes
The subregion created with fdisk order, creation physical volume order are exactly pvcreate, the included order of system, execution
[root@Tone~] #pvcreate/dev/sdb1；Physical volume"/dev/sdb1"successfully
creaded。
S5：Volume group physical volume being added to where logical volume subregion to be expanded.This is also the included order of system,
Execution, format are vgextend+VG title+physical volume title.
S6：By space dilatation idle in volume group to logical volume subregion.Command format is lvextend-l+100%FREE
Logical volume partition name.Because newly joined one piece of physical volume, 100%FREE parameter is exactly all surplus in volume group (VG)
Remaining free space is added in specified logical volume subregion.
S7：Decision logic rolls up partitioned file system format.
It should be noted that there are many file system format, such as Linux file-system types:minix,ext,
ext2,ext3,ext4,Reiserfs,XFS,JFS,xia,msdos,umsdos,vfat,ntfs,proc,nfs,iso9660,
Hpfs, sysv, smb, ncpfs, the common format of this patent main distinction ext, ext2, ext3, ext4 and XFS these types.
XFS is needed with xfs_growfs order, and ext, ext2, ext3, ext4 format are needed with resize2fs order.Example
When such as, by xfs_info command determination, this order is to return to xfs filesystem information, if it is the system of xfs format
Relevant information will be returned to, command execution results return to 0；If not xfs format, it is returned to the information of mistake, order is held
Row result returns to 1.Code is xfs format according to 0 or 1 judgement is returned the result.
S8：According to file system type synchronization file system, dilatation is made to come into force.It was mentioned in step S7, XFS needs to use
Xfs_growfs order；Ext, ext2, ext3, ext4 format are needed with resize2fs order, this process of step S8 is to expand
This order is executed after appearance, it can be understood as refresh, change is allowed to come into force.In step S8, the format of order is exactly to order+logical volume
Subregion.
S9：Return to the system partitioning information after synchronizing.The process is exactly to perform df-lh order, return system subregion letter
Breath is primarily to see the current size of logical volume subregion, Avail column.Further, it is also possible to record the size before dilatation, returned after dilatation
Return dilatation information in how many space.
Although specification and drawings and examples have been carried out detailed description to the invention, this field skill
Art personnel should be appreciated that and still can be modified or replaced equivalently to the invention；And all do not depart from wound of the present invention
The technical solution and its improvement for the spirit and scope made, are encompassed by the protection scope of the invention patent.
Claims (9)
1. the automatic flash chamber of logical volume subregion under a kind of linux system, it is characterized in that：The device includes：
Input module, for inputting logical volume partition name to be expanded and the Disk name of logical volume is added；
First obtains module, claims for obtaining volumegroup name according to logical volume partition name；
Processing module for the disk dilatation of logical volume will to be added to logical volume subregion, and makes dilatation come into force.
2. the automatic flash chamber of logical volume subregion under a kind of linux system according to claim 1, it is characterized in that：It is described
Processing module include：
First processing module will be added the disk partition of volume group and be formatted as lvm format；
Second processing module, by the partition creating formatted at physical volume；
Third processing module, volume group physical volume being added to where logical volume subregion to be expanded；
Fourth processing module, by space dilatation idle in volume group to logical volume subregion；
5th processing module, decision logic roll up partitioned file system format；
6th processing module makes dilatation come into force according to file system type synchronization file system.
3. the automatic flash chamber of logical volume subregion under a kind of linux system according to claim 1 or 2, it is characterized in that：Institute
The device stated further includes：
Second obtains module, obtains and shows the system partitioning information after synchronizing.
4. the automatic expansion method of logical volume subregion under a kind of linux system, it is characterized in that：The method is：
S1：It inputs logical volume partition name to be expanded and the Disk name of logical volume is added；
S2：Volumegroup name is obtained according to logical volume partition name to claim；
S3：The disk partition of volume group will be added and be formatted as lvm format；
S4：By the partition creating formatted at physical volume；
S5：Volume group physical volume being added to where logical volume subregion to be expanded；
S6：By space dilatation idle in volume group to logical volume subregion；
S7：Decision logic rolls up partitioned file system format；
S8：According to file system type synchronization file system, dilatation is made to come into force；
S9：Return to the system partitioning information after synchronizing.
5. the automatic expansion method of logical volume subregion under a kind of linux system according to claim 4, it is characterized in that：Step
In S2, by the order lvdisply under Linux system, the logic volume information of current system is shown, obtain volumegroup name and claim.
6. the automatic expansion method of logical volume subregion under a kind of linux system according to claim 4, it is characterized in that：Step
In S3, disk partition is formatted as by lvm format by fdisk order.
7. the automatic expansion method of logical volume subregion under a kind of linux system according to claim 4, it is characterized in that：Step
In S7, using xfs_growfs command determination XFS format, resize2fs command determination ext, ext2, ext3, ext4 lattice are used
Formula.
8. the automatic expansion method of logical volume subregion under a kind of linux system according to claim 4, it is characterized in that：Step
In S8, the method that makes dilatation come into force：Subregion is rolled up by system command flush logic.
9. the automatic expansion method of logical volume subregion under a kind of linux system according to claim 4, it is characterized in that：Step
The realization process of S9 is：Execute df-lh order, return system partition information, be primarily to see the current size of logical volume subregion,
Avail column.
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Application publication date: 20181123 |