CN111273866B - Method, system and equipment for managing and alarming capacity of storage pool - Google Patents
Method, system and equipment for managing and alarming capacity of storage pool Download PDFInfo
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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
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3037—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a memory, e.g. virtual memory, cache
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3051—Monitoring arrangements for monitoring the configuration of the computing system or of the computing system component, e.g. monitoring the presence of processing resources, peripherals, I/O links, software programs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
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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
- G06F3/0653—Monitoring storage devices or 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
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
- G06F3/0689—Disk arrays, e.g. RAID, JBOD
Abstract
The method, the system and the equipment for managing and alarming the capacity of the storage pool divide the storage pool into three states of online, read-only and offline according to the relationship between the use capacity and the total capacity and the state of the disc, and switch different states under the conditions of offline disc, full data writing and normal state, thereby ensuring correct read-write data and stable state of the storage pool and ensuring that the storage pool can work normally under any scene. Meanwhile, the alarm signal can be sent out in time without consuming too many computing resources, so that the user can make adjustment in time.
Description
Technical Field
The invention relates to the technical field of computer storage, in particular to a method, a system and equipment for managing and alarming capacity of a storage pool.
Background
And establishing a storage pool on the storage system, adding raid, and writing IO into the volume after the volume is established. In the process of writing in IO, the use capacity of a storage pool is continuously increased, the idle capacity is continuously reduced, and in order to reasonably use the capacity of the storage pool and remind a user of the capacity state in time, the method for managing the capacity of the storage pool is introduced, the storage pool is divided into an online state, a read-only state and an offline state, and an alarm signal is timely sent according to the use capacity and the writing speed of the storage pool, so that the user can conveniently and timely perform corresponding operation.
Some existing storage system capacity management modes only prompt the percentage of capacity usage, and users need to actively and spontaneously check the capacity usage, so that the situation of untimely processing is easily caused, and serious consequences are caused. Some storage systems set a storage capacity use threshold, detect the capacity use condition at fixed time intervals, and send out an alarm signal if the set threshold is exceeded, but the set threshold is fixed, but the capacity consumption rates of different user or equipment storage pools are different, and the fixed threshold cannot adapt to all application scenarios; some set thresholds are single and cannot meet the alarm requirements of multiple levels; the usage capacity of the storage pool is monitored at fixed intervals, frequent monitoring consumes unnecessary computing resources when the usage capacity is far away from the alarm threshold, and low monitoring frequency easily causes untimely alarm when the usage capacity is near the alarm threshold.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a method, a system and equipment for managing and alarming the capacity of a storage pool, which automatically switch according to the actual application scene to ensure the normal work of the storage pool and the correct read-write data; and timely sends out alarm signals while not consuming too much computing resources, so that the user can make adjustments in time.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for managing and alarming the capacity of a storage pool comprises the following steps:
dividing the state of the storage pool disk into an online state, a read-only state and an offline state according to the relation between the use capacity and the total capacity of the storage pool and the state of the disk;
creating a storage pool, and performing state definition and state conversion rule of a storage pool disk;
performing state conversion on the state of the storage pool disk according to the state of the current storage pool disk and the full/exhausted data space state, and performing capacity expansion/data deletion on the storage pool disk and converting the storage pool disk into an online state when the storage pool disk is in a read-only state;
when the storage pool disk is in a read-only state, a dynamic capacity alarm threshold value is set, the used capacity is monitored, an alarm signal is sent out in time, and the distance between the used capacity and the dynamic capacity alarm threshold value is in negative correlation with the writing speed.
Further, the dynamic capacity alarm threshold includes a capacity alarm threshold set by the user side and two default exhaustion alarm thresholds, and the dynamic capacity alarm threshold dynamically changes according to the writing speed on the basis of the three fixed capacity thresholds, so as to meet alarm conditions and send out alarm signals of different levels.
Further, the performing state definition and state transition rule of the storage pool disk comprises:
when all the disks in the storage pool are in an online state and the data space is not fully written, the disks in the storage pool are in the online state, and at the moment, data can be written or read;
when all disks in the storage pool are online and the data space is exhausted, the storage pool is in a read-only state, and if data is continuously written, the data can be written into an OP space; and when the storage pool is in a read-only state, data is expanded or deleted, and the storage pool is in an online state.
Further, the performing state definition and state transition rule of the storage pool includes:
when a disk in a storage pool is offline, and the storage pool is also in an offline state, the storage pool becomes neither read nor write capable.
Further, the performing state definition and state transition rule of the storage pool includes:
when the offline disk is recovered to be online, the storage pool is recovered to be in an initial state.
Further, the monitoring of the usage capacity of the storage pool while online and timely sending out an alarm signal comprise:
setting a fixed threshold and two system default capacity thresholds;
the fixed threshold is used for capacity alarm set by a user, and the system default capacity threshold is used for system capacity exhaustion alarm;
reading the writing speed in the current storage pool, and calculating a current dynamic threshold by using a fixed threshold;
calculating the capacity monitoring frequency according to the write IO speed in the storage pool and the distance from the current used capacity to the threshold; and comparing the relationship between the current use capacity and the current dynamic threshold value by using a preset capacity monitoring function according to the calculated capacity monitoring frequency, and sending an alarm signal if the current use capacity is greater than or equal to the current dynamic threshold value.
Correspondingly, the invention also discloses a system for managing and alarming the capacity of the storage pool, which comprises the following steps:
the storage pool setting unit is used for dividing the storage pool into an online state, a read-only state and an offline state according to the relationship between the use capacity and the total capacity and the state of the disk;
the storage pool creating unit is used for creating the storage pool and expanding the capacity of the pool;
the storage pool defining unit is used for defining and converting the state of the storage pool;
and the warning unit is used for setting a capacity warning threshold value, and monitoring the used capacity when the storage pool passes the online state to send out warning signals in time.
Correspondingly, the invention also discloses a device for managing and alarming the capacity of the storage pool, which comprises:
a memory for storing a computer program;
a processor for implementing the method steps of storage pool capacity management and alerting as described in any of the above when executing said computer program.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a method, a system and equipment for managing and alarming the capacity of a storage pool, which divide the storage pool into three states of online, read-only and offline according to the relationship between the use capacity and the total capacity and the state of a disc, and switch different states under the conditions of offline disc, full data writing and normal state, thereby ensuring the correct read-write data and the stable state of the storage pool, and ensuring the normal operation of the storage pool under any scene. Threshold value alarm and capacity exhaustion alarm of different levels can be set, alarm points dynamically change according to writing speed, alarm monitoring frequency dynamically changes according to writing speed and distance to capacity threshold value, alarm signals are sent out in time while too many computing resources are not consumed, and users can make adjustment in time.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a system block diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings.
A method for managing and alarming capacity of a storage pool as shown in fig. 1 comprises:
the state of the storage pool disk is divided into an online state, a read-only state and an offline state according to the relationship between the usage capacity and the total capacity of the storage pool and the state of the disk.
And creating a storage pool, performing state definition of the storage pool disk and establishing a state transition rule. When all the disks in the storage pool are online and the data space is not full, the pool is in an online state, and data can be written in or read out; when all the disks in the storage pool are online and the data space is exhausted, the pool is changed into a read-only state, only the data in the pool can be read, and the data cannot be written, if the data is continuously written, the data can be written into an OP space, so that no space is available during garbage recovery. When the storage pool is in a read-only state, data is expanded or deleted, and the pool is in an online state. When one disk in the storage pool is offline, the storage pool is also offline, and data cannot be read or written at the time. When the offline disk comes back online, the storage pool returns to its original state (online or read-only).
And performing state conversion on the state of the storage pool disk according to the state of the current storage pool disk and the full/exhausted data space state, and performing capacity expansion/data deletion on the storage pool disk and converting the storage pool disk into an online state when the storage pool disk is in a read-only state.
When the storage pool disk is in a read-only state, a dynamic capacity alarm threshold value is set, the used capacity is monitored, an alarm signal is sent out in time, and the distance between the used capacity and the dynamic capacity alarm threshold value is in negative correlation with the writing speed.
Specifically, a capacity alarm threshold value is set, and the storage pool monitors the used capacity when passing online and sends out an alarm signal in time. Two default exhaustion alarm thresholds are arranged in the system to which the storage pool belongs, and the dynamic capacity threshold dynamically changes according to the writing speed on the basis of the three fixed capacity thresholds, meets the alarm condition and sends out alarm signals of different levels.
Wherein the timely sending out of the alarm signal for the monitoring of the usage capacity of the storage pool comprises the following steps:
user setting of fixed threshold Tf0The default capacity threshold of the system is:
Tf1＝90％
Tf2＝98％
thus, three alarms are provided, one is the capacity alarm set by the user, and the other is the default capacity exhaustion alarm of the system;
reading the writing speed in the current storage pool, and calculating a dynamic threshold value:
Ta＝Tf-αVw
wherein T isfIs a set fixed threshold value, TaIs the calculated current dynamic threshold, alpha is the transform coefficient, VwIs the writing IO speed, which is the middle value of the writing speed of the latest n times of reading, n is an odd number, and is generally 5;
calculating the capacity monitoring frequency according to the writing IO speed in the storage pool and the distance from the current used capacity to the threshold value:
wherein beta, Vw、TaT represents an adjusting coefficient, a current writing IO speed, a current dynamic threshold value and a current using capacity respectively; according to the formula, when the IO writing speed is high or the current used capacity is closer to the threshold value, the capacity monitoring frequency is very high so as to timely monitor the time when the used capacity exceeds the alarm threshold value and send an alarm signal; when the write IO speed is slow or the currently used capacity is far from the threshold, the capacity monitoring frequency becomes low because it is not necessary to consume too much computing resources to monitor frequently.
Entering a capacity monitoring function according to the calculated monitoring frequency, comparing the relation between the current use capacity and the current dynamic threshold value, and sending an alarm signal if the current use capacity is greater than or equal to the current dynamic threshold value;
when T is more than or equal to Tf0Sending out a threshold alarm signal; when T is more than or equal to Tf1Sending out a general alarm of capacity exhaustion; when T is more than or equal to Tf2And sending out a capacity exhaustion emergency alarm.
Correspondingly, as shown in fig. 2, the present invention also discloses a system for managing and alarming the capacity of a storage pool, which comprises:
the storage pool setting unit is used for dividing the storage pool into an online state, a read-only state and an offline state according to the relationship between the use capacity and the total capacity and the state of the disk;
the storage pool creating unit is used for creating the storage pool and expanding the capacity of the pool;
the storage pool defining unit is used for defining and converting the state of the storage pool;
and the warning unit is used for setting a capacity warning threshold value, and monitoring the used capacity when the storage pool passes the online state to send out warning signals in time.
Correspondingly, the invention also discloses a device for managing and alarming the capacity of the storage pool, which comprises:
a memory for storing a computer program;
a processor for implementing the method steps of storage pool capacity management and alerting as described in any of the above when executing said computer program.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention. The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
In the embodiments provided by the present invention, it should be understood that the disclosed system, system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit.
Similarly, each processing unit in the embodiments of the present invention may be integrated into one functional module, or each processing unit may exist physically, or two or more processing units are integrated into one functional module.
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Claims (5)
1. A method for managing and alarming the capacity of a storage pool is characterized by comprising the following steps:
dividing the state of the storage pool disk into an online state, a read-only state and an offline state according to the relation between the use capacity and the total capacity of the storage pool and the state of the disk;
creating a storage pool, and performing state definition and state conversion rule of a storage pool disk;
performing state conversion on the state of the storage pool disk according to the state of the current storage pool disk and the full/exhausted data space state, and performing capacity expansion/data deletion on the storage pool disk and converting the storage pool disk into an online state when the storage pool disk is in a read-only state;
when the storage pool disk is in a read-only state, setting a dynamic capacity alarm threshold, monitoring the use capacity and sending out an alarm signal in time, wherein the distance between the use capacity and the dynamic capacity alarm threshold is in negative correlation with the writing speed;
the performing state definition and state transition rule of the storage pool disk comprises:
when all the disks in the storage pool are in an online state and the data space is not fully written, the disks in the storage pool are in the online state, and at the moment, data can be written or read;
when all disks in the storage pool are online and the data space is exhausted, the storage pool is in a read-only state, and if data is continuously written, the data can be written into an OP space; when the storage pool is in a read-only state, data is expanded or deleted, and the storage pool is in an online state;
when a disk in a storage pool is offline and the storage pool is also in an offline state, the storage pool becomes neither readable nor writable;
when the offline disk is brought back on-line, the storage pool is restored to the initial state.
2. The method for storage pool capacity management and alarming of claim 1, wherein the dynamic capacity alarm threshold comprises a capacity alarm threshold set by a user terminal and two default exhaustion alarm thresholds, and the dynamic capacity alarm threshold dynamically changes according to a writing speed on the basis of the three fixed capacity thresholds, meets an alarm condition, and sends out alarm signals of different levels.
3. The method for storage pool capacity management and alarming as claimed in claim 1, wherein said timely signaling of alarm by the storage pool monitoring usage capacity comprises:
setting a fixed threshold and two system default capacity thresholds;
the fixed threshold is used for capacity alarm set by a user, and the system default capacity threshold is used for system capacity exhaustion alarm;
reading the writing speed in the current storage pool, and calculating a current dynamic threshold by using a fixed threshold;
calculating the capacity monitoring frequency according to the write IO speed in the storage pool and the distance from the current used capacity to the threshold;
and comparing the relation between the current use capacity and the current dynamic threshold value by using a preset capacity monitoring function according to the calculated capacity monitoring frequency, and sending an alarm signal if the current use capacity is greater than or equal to the current dynamic threshold value.
4. A system for storage pool capacity management and alerting, the system applying the method of claim 1, the system comprising:
the storage pool setting unit is used for dividing the storage pool into an online state, a read-only state and an offline state according to the relationship between the use capacity and the total capacity and the state of the disk;
the storage pool creating unit is used for creating the storage pool and expanding the capacity of the pool;
the storage pool defining unit is used for defining and converting the state of the storage pool;
and the warning unit is used for setting a capacity warning threshold value, and monitoring the used capacity when the storage pool passes the online state and sending a warning signal in time.
5. An apparatus for managing and alarming storage pool capacity, comprising:
a memory for storing a computer program;
a processor for implementing the method steps of storage pool capacity management and alerting as claimed in any of claims 1 to 3 when executing said computer program.
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| CN104571966A (en) * | 2015-01-27 | 2015-04-29 | 浪潮电子信息产业股份有限公司 | Method for increasing configuration utilization rate of storage thin provisioning |
| CN109542727A (en) * | 2018-11-19 | 2019-03-29 | 郑州云海信息技术有限公司 | A kind of information cuing method and device |
| CN110413226A (en) * | 2019-06-29 | 2019-11-05 | 苏州浪潮智能科技有限公司 | A kind of storage pool capacity utilizes method, system, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104571966A (en) * | 2015-01-27 | 2015-04-29 | 浪潮电子信息产业股份有限公司 | Method for increasing configuration utilization rate of storage thin provisioning |
| CN109542727A (en) * | 2018-11-19 | 2019-03-29 | 郑州云海信息技术有限公司 | A kind of information cuing method and device |
| CN110413226A (en) * | 2019-06-29 | 2019-11-05 | 苏州浪潮智能科技有限公司 | A kind of storage pool capacity utilizes method, system, electronic equipment and storage medium |
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