CN108965010A - A kind of network link flow control abnormality monitoring method, system and host bus adaptor - Google Patents
A kind of network link flow control abnormality monitoring method, system and host bus adaptor Download PDFInfo
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- CN108965010A CN108965010A CN201810797696.3A CN201810797696A CN108965010A CN 108965010 A CN108965010 A CN 108965010A CN 201810797696 A CN201810797696 A CN 201810797696A CN 108965010 A CN108965010 A CN 108965010A
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- delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
- H04L63/1425—Traffic logging, e.g. anomaly detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
This application discloses a kind of network link flow control abnormality monitoring method, system and host bus adaptor, are applied to FC SAN and store network, comprising: the reply obtained between transmitting terminal and receiving end postpones；Judge to reply whether delay is more than preset delay threshold value；If it does, then sending flow control exception information to user terminal；The present invention obtains the reply between transmitting terminal and receiving end and postpones, judged using the size for replying delay with preset delay threshold value, when reply is delayed over delay threshold value, then show that reply delay is excessive, therefore, it is possible to judge that going out that flow control occurs abnormal, to solve the problems, such as that FC link network flow control can not be monitored extremely, and link between transmitting terminal and receiving end is individually detected, it is capable of determining that it is that section of link fails, realizes precise positioning.
Description
Technical field
The present invention relates to field of data storage, in particular to a kind of network link flow control abnormality monitoring method, system and master
Machine bus adapter.
Background technique
It is that application system is slow or unstable that the problem of most headache is encountered by data center at present, such issues that go out sometimes
It is not fixed between current, is difficult positioning and queueing problem.Certainly, the network of data center and system O&M team pass through manufacturer
Or experience, NPM/APM (NPM, Network Performance Management, network performance management, APM,
Application Performance Management, application performance management) etc. with the help of performance managements tool, sometimes
Application system can also directly or indirectly be tracked, and (SQL, Structured Query Language are tied with certain SQL slowly
Structure query language) database access or virtual machine access disk have a relationship slowly, but analyze backstage FC SAN (FC SAN,
Fibre Channel Storage Area Network, using the storage area network of optical-fibre channel) storage performance problem is simultaneously
It is not a gravy jobs.
If it find that read/write performance is bad to be so in most cases that FC SAN storage system is really problematic, but such as
There is the case where abnormal flow control in fruit, and read/write performance is caused to decline, then is difficult to detect by and.
Therefore, the purpose of the present invention is to provide one kind can be to the method that network link flow control is monitored extremely.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of network link flow control abnormality monitoring method, system and hosts
Bus adapter can be monitored extremely network link flow control.Its concrete scheme is as follows:
A kind of network link flow control abnormality monitoring method is applied to FC SAN and stores network, comprising:
The reply obtained between transmitting terminal and receiving end postpones；
Judge whether the reply delay is more than preset delay threshold value；
If it does, then sending flow control exception information to user terminal.
Optionally, after the reply delay obtained between transmitting terminal and receiving end, further includes:
Reply delay is saved to database.
Optionally, the process of the reply delay obtained between transmitting terminal and receiving end, comprising:
The data packet that the transmitting terminal is sent to the receiving end is obtained, and records the sending time of the data packet；
When obtaining the receiving end and return back to the confirmation message of the transmitting terminal, and recording the reception of the confirmation message
Between；
Using the sending time and the receiving time, the reply delay is obtained.
Optionally, described to utilize the sending time and the receiving time, obtain the process for replying delay, packet
It includes:
The sending time is subtracted using the receiving time, obtains the reply delay.
Optionally, after determining that the reply is delayed over the delay threshold value, further includes:
Modify the flow control performance parameter of the transmitting terminal and/or the receiving end.
The invention also discloses a kind of host bus adaptor, comprising:
It replys delay and obtains module, for obtaining the delay of the reply between transmitting terminal and receiving end；
Flow control exception judgment module, for judging whether the reply delay is more than preset delay threshold value；
Exception information sending module, for determining that the reply is delayed over the delay threshold value when the judgment module,
Flow control exception information is then sent to user terminal.
Optionally, the reply delay obtains module, comprising:
Sending time acquiring unit, the data packet for being sent to the receiving end for obtaining the transmitting terminal, and record institute
State the sending time of data packet；
Receiving time acquiring unit returns back to the confirmation message of the transmitting terminal for obtaining the receiving end, and records
The receiving time of the confirmation message；
Delay calculation unit is replied, for utilizing the sending time and the receiving time, obtains replying delay.
Optionally, further includes:
Data storage module, for saving reply delay to database.
Optionally, further includes:
Flow control modified module, for determining that the reply is delayed over the delay threshold when the flow control exception judgment module
Value, modifies the flow control performance parameter of the transmitting terminal and/or the receiving end.
The invention also discloses a kind of network link flow control abnormality detection systems, including host, FC interchanger, SAN to store
System, optical splitter, user terminal and such as weigh host bus adaptor above-mentioned；
The host, the FC interchanger and the SAN storage system are sequentially connected；
The optical splitter, for obtaining communication link between the host, the FC interchanger and the SAN storage system
In data packet and confirmation message, and data packet and confirmation message are sent to the host bus adaptor；
The user terminal, for reading the data in the host bus adaptor.
In the present invention, network link flow control abnormality monitoring method is applied to FC SAN and stores network, comprising: obtains and send
Reply between end and receiving end postpones；Judge to reply whether delay is more than preset delay threshold value；If it does, then sending stream
Exception information is controlled to user terminal；The present invention obtains the reply between transmitting terminal and receiving end and postpones, and utilizes the big of reply delay
It is small to be judged with preset delay threshold value, when reply is delayed over delay threshold value, then show to reply delay it is excessive, because
This, it can be determined that flow control exception occurs out, to solve the problems, such as that FC link network flow control can not be monitored extremely, and right
Link is individually detected between transmitting terminal and receiving end, is capable of determining that it is that section of link fails, realizes precise positioning.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of network link flow control abnormality monitoring method flow diagram provided in an embodiment of the present invention；
Fig. 2 is another network link flow control abnormality monitoring method flow diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of host bus adaptor structural schematic diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of network link flow control abnormality detection system structural schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is shown in Figure 1 the embodiment of the invention discloses a kind of network link flow control abnormality monitoring method, it is applied to FC
SAN stores network, this method comprises:
S11: the reply obtained between transmitting terminal and receiving end postpones.
Specifically, transmitting terminal needs to send data packet to receiving end, transmitting terminal can be host side, naturally it is also possible to be FC
Interchanger (FC, Fibre Channel, optical-fibre channel) or SAN storage system (SAN, Storage Area Network, storage
Local area network), as long as being transmitting terminal as the equipment that data packet is sent；To avoid transmitting terminal that mass data is sent to reception
End causes receiving end beyond processing capacity, and receiving end needs to reply to transmitting terminal after the data packet for receiving transmitting terminal transmission
One and the one-to-one confirmation message of received data packet, to inform that transmitting terminal receives data packet, meanwhile, also transmitting terminal is enabled to obtain
Know that the preparation for receiving next data packet has been carried out in receiving end, if transmitting terminal still has data packet to need to send to receiving end, sends out
Sending end sends data packet to receiving end again after receiving confirmation message, and similarly, receiving end may be host side, FC friendship
It changes planes or SAN storage system, i.e. receiving end is the equipment as received data packet.
For example, host needs to send data packet to SAN storage system, and FC interchanger is as intermediate receiving device, at this point,
Host and FC interchanger, then respectively transmitting terminal and receiving end, host send data packet to FC interchanger as transmitting terminal, and FC is handed over
It changes planes then as receiving end received data packet, while returning to confirmation message to host.
Specifically, transmitting packets to from transmitting terminal, to receive confirmation message this period of receiving end transmission be just reply
Delay；Delay is replied to obtain in real time.
S12: judge to reply whether delay is more than preset delay threshold value；
S13: if it does, then sending flow control exception information to user terminal.
Specifically, under normal conditions, receiving end is after the data packet for receiving transmitting terminal transmission, within a certain period of time
Will reply confirmation message, and when receiving end is receiving excessive data packet, data-handling capacity is caused to be saturated, the time without
When method receives more data packets, to prevent transmitting terminal from continuing to send data packets to receiving end, data packetloss, receiving end are caused
It will suspend to transmitting terminal and reply confirmation message, to prevent transmitting terminal from continuing to send data packet to receiving end using confirmation message, this
Kind situation, that is, flow control is abnormal, for example, replying delay should be in 5ms between 60ms, therefore, setting time is greater than normal condition next time
Therefore the delay threshold value postponed again, when reply is delayed over delay threshold value, then shows to reply for example, delay threshold value is 100ms
Postpone excessive, receiving end fails to reply confirmation message in time, causes transmitting terminal to fail to receive confirmation message in time, and then can not send out
It send next data packet to receiving end, data blocking occurs, flow control exception occurs, therefore, flow control exception information hair can be generated
It send to user terminal, to prompt user to occur, flow control is abnormal, and flow control exception information can be short message, mail and/or prompt tone etc.
Form.
It is to be appreciated that continuing to monitor if being less than.
Postpone as it can be seen that the embodiment of the present invention obtains the reply between transmitting terminal and receiving end, utilizes the size for replying delay
Judged with preset delay threshold value, when reply is delayed over delay threshold value, then show to reply delay it is excessive, therefore,
It may determine that and flow control exception occurs, to solve the problems, such as that FC link network flow control can not be monitored extremely, and to hair
Link is individually detected between sending end and receiving end, is capable of determining that it is that section of link fails, realizes precise positioning.
It should be noted that storing network in FC SAN due to applying, there are FC interchangers, therefore, a FC interchanger
Multiple host or more SAN storage systems can be corresponded to, monitor each host or SAN storage system and FC accordingly at the same time
The flow control state of link between interchanger, can accurately monitor out that host or SAN storage system and FC interchanger it
Between link that flow control occurs is abnormal.
The embodiment of the invention discloses a kind of specific network link flow control abnormality monitoring methods, implement relative to upper one
Example, the present embodiment have made further instruction and optimization to technical solution.It is shown in Figure 2, specific:
S21: it obtains transmitting terminal and is sent to the data packet of receiving end, and record the sending time of data packet.
Specifically, transmitting terminal when sending data packet, records the sending time for having the data packet in data packet, therefore,
After getting data packet, it can be sent to obtain data packet from transmitting terminal by reading the sending time wherein recorded
Sending time.
It is understood that due to being only the sending time for obtaining data packet, in the transmission for getting data packet
Between after, can delete data packet itself, save memory space, to guarantee to continue received data packet, without depositing
The case where storing up insufficient space；Certainly, the sending time of storage can also be cleared up periodically or after storing to certain amount, from
And guaranteeing system can operate normally.
S22: the confirmation message that receiving end returns back to transmitting terminal, and the receiving time of registration confirmed information are obtained.
Specifically, with obtain data packet sending time similarly, after obtaining confirmation message, utilize the note in confirmation message
The receiving time of record is confirmed the receiving time of information.
Similarly, the storage mode that can also be similar to that data packet for the storage of confirmation message, not permanently stores, but
It can periodically or quantitatively clear up, guarantee the long-play of system.
S23: utilizing sending time and receiving time, obtains replying delay.
Specifically, subtracting sending time using receiving time, the time interval for obtaining sending time and receiving time is poor,
That is, replying delay, after obtaining reply delay, user can judge whether that flow control exception occurs according to the size for replying delay.
It is understood that the sending time in data packet can be recorded by timestamp；
It should be noted that acquisition data packet and confirmation message are real-time acquisition.
S24: judge to reply whether delay is more than preset delay threshold value；
S25: if it does, then sending flow control exception information to user terminal.
Further, the number and frequency for comprehensive statistics generation flow control exception further include after obtaining replying delay
Delay preservation will be replied to database, the reply delay of each link each period is recorded in the database, so that user can
To be checked by the data in user terminal called data library, count and observe that link is regular flow control occurs
Exception needs to adjust；Certainly, reply delay be stored in database after, can also by system automatically by judge history reply postpone
Whether delay threshold value is greater than, and each link replys the number and frequency for being delayed over delay threshold value in programming count database, obtains
Statistical result is saved into database, and user can check statistical result by user terminal.
Wherein, database can be web server (web page server) database.
It further, can also include modification transmitting terminal and/or reception after determining that reply is delayed over delay threshold value
The flow control performance parameter at end.
For example, the flow control performance parameter Buffer Credit value of transmitting terminal is 16, the Buffer Credit value of receiving end
It is 8, the data packet number that transmitting terminal is sent has been more than quantity that 8 data packets of continuous processing are capable of in receiving end, therefore, can be with
The Buffer Credit value of receiving end is adjusted to 16, or the Buffer Credit value of transmitting terminal is adjusted to 8, and then solve
The data blocking occurred by flow control.
Specifically, the history in database can also be utilized to reply delay with preset is for judging that history replys delay
No too long delay threshold value, the history for counting each link reply the number and/or frequency for being delayed over delay threshold value, then benefit
With preset upper limit threshold, judges that the history of each link is replied and be delayed over whether the number of delay threshold value is more than upper limit threshold
Value, if it does, then can the flow control performance parameter accordingly to transmitting terminal and/or receiving end be adjusted.
Correspondingly, the embodiment of the invention also discloses a kind of host bus adaptor, it is shown in Figure 3, comprising:
It replys delay and obtains module 11, for obtaining the delay of the reply between transmitting terminal and receiving end；
Flow control exception judgment module 12 replys whether delay is more than preset delay threshold value for judging；
Exception information sending module 13 then sends flow control for being delayed over delay threshold value when judgment module determines to reply
Exception information is to user terminal.
Postpone as it can be seen that the embodiment of the present invention obtains the reply between transmitting terminal and receiving end, utilizes the size for replying delay
Judged with preset delay threshold value, when reply is delayed over delay threshold value, then show to reply delay it is excessive, therefore,
It may determine that and flow control exception occurs, to solve the problems, such as that FC link network flow control can not be monitored extremely, and to hair
Link is individually detected between sending end and receiving end, is capable of determining that it is that section of link fails, realizes precise positioning.
Specifically, above-mentioned reply delay obtains module 11, sending time acquiring unit can be specifically included, receiving time obtains
It takes unit and replys delay calculation unit；
Sending time acquiring unit, the data packet for being sent to receiving end for obtaining transmitting terminal, and record the hair of data packet
Send the time；
Receiving time acquiring unit returns back to the confirmation message of transmitting terminal, and registration confirmed information for obtaining receiving end
Receiving time；
Delay calculation unit is replied, for utilizing sending time and receiving time, obtains replying delay.
Specifically, above-mentioned reply delay calculation unit, can be specifically used for subtracting sending time using receiving time, obtain
Reply delay.
It can also include data storage module and flow control modified module in the embodiment of the present invention；Wherein,
Data storage module is saved for that will reply delay to database.
Flow control modified module, for being delayed over delay threshold value when flow control exception judgment module determines to reply, modification is sent
The flow control performance parameter at end and/or receiving end.
In addition, the embodiment of the invention also discloses a kind of network link flow control abnormality detection system, shown in Figure 4, packet
Include host 21, FC interchanger 22, SAN storage system 23,21 bus adaption of optical splitter 24, user terminal 25 and host as the aforementioned
Device 26；
Host 21, FC interchanger 22 and SAN storage system 23 are sequentially connected；
Optical splitter 24, for obtaining the data between host 21, FC interchanger 22 and SAN storage system 23 in communication link
Packet and confirmation message, and data packet and confirmation message are sent to 21 bus adapter 26 of host；
User terminal 25, for reading the data in 21 bus adapter 26 of host.
It is understood that optical splitter 24 can use the Port Mirroring function of FC optical fiber switch also to replace, when adopting
When with the Port Mirroring function of FC optical fiber switch, the data of the both direction of optical fiber link are exported into 21 bus of host respectively
The RX mouth of two monitoring mouths of adapter 26 can obtain the communication data in link in real time.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Above to a kind of network link flow control abnormality monitoring method provided by the present invention, system and host bus adaptor
It is described in detail, used herein a specific example illustrates the principle and implementation of the invention, the above reality
The explanation for applying example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology of this field
Personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (10)
1. a kind of network link flow control abnormality monitoring method, which is characterized in that be applied to FC SAN and store network, comprising:
The reply obtained between transmitting terminal and receiving end postpones；
Judge whether the reply delay is more than preset delay threshold value；
If it does, then sending flow control exception information to user terminal.
2. network link flow control abnormality monitoring method according to claim 1, which is characterized in that the acquisition transmitting terminal with
After reply delay between receiving end, further includes:
Reply delay is saved to database.
3. network link flow control abnormality monitoring method according to claim 1, which is characterized in that the acquisition transmitting terminal with
The process of reply delay between receiving end, comprising:
The data packet that the transmitting terminal is sent to the receiving end is obtained, and records the sending time of the data packet；
It obtains the receiving end and returns back to the confirmation message of the transmitting terminal, and record the receiving time of the confirmation message；
Using the sending time and the receiving time, the reply delay is obtained.
4. network link flow control abnormality monitoring method according to claim 3, which is characterized in that described to utilize the transmission
Time and the receiving time obtain the process for replying delay, comprising:
The sending time is subtracted using the receiving time, obtains the reply delay.
5. network link flow control abnormality monitoring method according to any one of claims 1 to 4, which is characterized in that work as judgement
The reply is delayed over after the delay threshold value, further includes:
Modify the flow control performance parameter of the transmitting terminal and/or the receiving end.
6. a kind of host bus adaptor characterized by comprising
It replys delay and obtains module, for obtaining the delay of the reply between transmitting terminal and receiving end；
Flow control exception judgment module, for judging whether the reply delay is more than preset delay threshold value；
Exception information sending module is then sent out for determining that the reply is delayed over the delay threshold value when the judgment module
Send flow control exception information to user terminal.
7. host bus adaptor according to claim 6, which is characterized in that the reply delay obtains module, comprising:
Sending time acquiring unit, the data packet for being sent to the receiving end for obtaining the transmitting terminal, and record the number
According to the sending time of packet；
Receiving time acquiring unit returns back to the confirmation message of the transmitting terminal for obtaining the receiving end, and described in record
The receiving time of confirmation message；
Delay calculation unit is replied, for utilizing the sending time and the receiving time, obtains replying delay.
8. host bus adaptor according to claim 6, which is characterized in that further include:
Data storage module, for saving reply delay to database.
9. host bus adaptor according to claim 8, which is characterized in that further include:
Flow control modified module, for determining that the reply is delayed over the delay threshold value when the flow control exception judgment module,
Modify the flow control performance parameter of the transmitting terminal and/or the receiving end.
10. a kind of network link flow control abnormality detection system, which is characterized in that including host, FC interchanger, SAN storage system,
Optical splitter, user terminal and such as described in any item host bus adaptor of claim 6 to 9；
The host, the FC interchanger and the SAN storage system are sequentially connected；
The optical splitter, for obtaining between the host, the FC interchanger and the SAN storage system in communication link
Data packet and confirmation message, and data packet and confirmation message are sent to the host bus adaptor；
The user terminal, for reading the data in the host bus adaptor.
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| CN111239584A (en) * | 2019-12-31 | 2020-06-05 | 视航机器人（佛山）有限公司 | Mainboard testing device, system and method applied to unmanned forklift |
| CN113391149A (en) * | 2021-06-10 | 2021-09-14 | 南方电网科学研究院有限责任公司 | Remote monitoring method and system for user load state of smart power grid |
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