How is the lightningstrikerecord.txt file in the flash memory of the S2700 generated

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A device automatically generates this file in the flash memory after a lightning strike. The file records the total number of exceptions and the time when the latest five exceptions occur.

Other related questions:
why there is a lightningstrikerecord.txt file at Device Flash
The S2700 device automatically generates this file in Flash after a single lightning strike, which records the total number of times which the device has occurred and the last 5 occurrences of the exception.

Memory and flash specifications of S series fixed switch
For memory and flash specifications of the S1720, see "Hardware Structure" in the Product Description. For memory and flash specifications of the S3700, see "System Configuration" in the Hardware Description. For memory and flash specifications of the S2700, S5700, S6700, and S600, see "Technical Specifications" in the Hardware Description. For the product description of the S1720, see < S1720 Hardware Description >. For the hardware description of the S2700, see . For the hardware description of the S3700, see . For the hardware description of the S5700, see < S5700Hardware Description >. For the hardware description of the S6700, see < S6700Hardware Description >. For the hardware description of the S600, see < S600Hardware Description >.

How can I clear logs on a WLAN device
Logs generated on a WLAN device are saved in the log buffer. After the number of logs reaches the specified threshold, the logs are saved to the syslogfile or logfile folder in the device's flash memory. When the WLAN device has been running for a long time, it generates a large number of logs. In this case, you can run the info-center max-logfile-number command to set the maximum number of logs to be saved on the device. You can clear all logs in the buffer and the flash memory. 1. Clear logs in the log buffer or trap buffer. - Run the reset logbuffer command in the user view to clear logs in the log buffer. - Run the reset trapbuffer command in the user view to clear traps in the trap buffer. 2. Clear log files in the flash memory. Run the delete command in the user view to delete log files in the flash memory. To delete logs in the logfile folder, perform the following operations: - delete flash:/logfile/xxx //Delete a log record. xxx specifies the log file name saved in the flash memory. - delete /unreserved flash:/logfile/xxx //Permanently delete a log record, which cannot be restored. - reset recycle-bin //Empty the recycle bin.

Default file types in the flash memory of an S series switch
After an S series switch (except the S1700) is powered on, it initializes the configuration by reading the configuration file from the flash memory by default. When you run the dir flash: command in the user view, the following information is displayed: dir flash: Directory of flash:/ Idx Attr Size(Byte) Date Time FileName 0 -rw- 812 Jan 01 2008 00:00:56 private-data.txt 1 -rw- 948 Jan 01 2008 07:16:55 vrpcfg.zip 2 -rw- 90,602 Jan 03 2008 03:58:15 v200r008sph001.pat 3 -rw- 6,418,980 Jan 19 2008 20:19:42 s2700-v100r005.cc 4 -rw- 12,240 Jan 03 2008 04:52:43 $_patchstate_reboot 14,632 KB total (8,228 KB free) In the command output: - vrpcfg.cfg: indicates the configuration file. - s2700-v100r005.cc: indicates the system software. - private-data.txt: indicates the file used to save service initialization data. Initialization data of some tasks (for example, the number of times the switch restarts) is irrelevant to the configuration and is not recorded in the configuration file. The private-data.txt file records initialization data of these tasks. - $_patchstate_reboot: records patch status. This file is created after the switch runs a patch. This file is protected by the system and cannot be deleted. The file records status of all patches, for example, the active state and running state. - v200r008sph001.pat: indicates a patch file. The name extension of patch files is .pat. Sometimes, the flash memory saves a notilogindex.txt file. If a destination host is configured for Inform traps, the number recorded in this file is used as the initial serial number and filled in the Request ID field in SNMP packets. The system starts a timer when the SNMP task starts, and updates the file every 12 hours.

How is the V200R001C01 flash file system improved
The self-check function is added. Files are deleted in the background. File read/write performance is improved.

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