于2019.04.11日 15:03，杨智在进行Y108幢发酵计算机P

When at 2019.04. At 3:03 p.m. on the 11th, YangZhi performed monthly backup computer Y108 buildings fermentation PKS systems found fan abnormal sound A standby server, the standby display, etc. after the access server A, no response. Forced to restart the server A, also failed to start. <br><br>The most likely reason for the deviation is due to server A long-running cause the motherboard aging, causing the server A shuts down unexpectedly. <br>Continued right column impact assessment and risk assessment: described as a backup server, then the value of CPU A DOWN, according to the description, it should belong to the primary server A and server B lost contact, generate an audit trail during this time server A fails. "H3-TM-22528-A03 PKS fermentation control computer system audit trail described common table" not specify what state the backup server belongs, the data is not timely auditor A discovery server failure. In summary, the standby server A failure did not affect the normal production Enramycin fermentation, product quality will not be affected. However, due to "H3-TM-22528-A03 PKS fermentation control computer system audit trail table describes common" not to "backup server" is described, resulting in data auditors failed to detect anomalies, and therefore need to supplement this SOP.<br><br>Since Y108 buildings fermenting a computer to the master server B as the preferred backup server A or other causes, occur only in the master server B results in a case where it can not run intervened, so during the standby Server A fails, all operating cans parameters, historical data and audit trails are running on the primary server B, had no effect on the production of enramycin. A standby server for maintenance involves only replace the motherboard, the server A after the repair is completed, the fermentation system is automatically synchronized to the master server B, and no changes in the parameters and settings, the fermentation system restored to the normal redundancy, without the subsequent production of affected. Fermentation personnel between 2019.03.29 - 2019.04.05 history and audit trail data been verified, records show no abnormality. Check audit trails and historical curve between 2019.03.31 to 2019.04.15 again and found no abnormal events and data loss. After the re-investigation of the audit trail and we found a system at 2019.03. At 14:05 on the 31st audit trail, described as SERVER_115, sources REDUNDANT, root cause deviation of follow-up in the left column. <br><br>1. A server system board replacement. <br>2. Revision description "H3-TM-22528-A03 PKS fermentation control computer system audit trail described common table", increase the backup server.

At 15:03 on 2019.04.11, Yang Zhi was carrying out a monthly backup of the PKS system of Y108 fermented computer, and found that the backup server A fan sounded and connected the monitor to the backup server A, and did not respond. Forced restart of server A, also failed to start. <br><br>The most likely cause of this deviation is the aging of the motherboard due to the long-term operation of server A, causing server A to stop running unexpectedly.<br>Continue right column impact assessment and risk assessment: described as backup server, the value at the time is CPU A DOWN, according to the description, should belong to the server A and primary server B out of contact, at that time server A failure in the event of this audit tracking. "H3-TM-22528-A03 PKS fermentation computer control system audit tracking common description control table" does not specify what state backup server belongs to, data auditors did not find server A fault in time. In summary, the backup server A failure, did not affect the normal production of enlamycin fermentation, product quality will not affect. However, due to the "H3-TM-22528-A03 PKS fermentation computer control system audit tracking common description control table" does not describe the "backup server", resulting in data auditors failed to find exceptions in time, so need to supplement this SOP.<br><br>Since Y108 fermentation computers operate first with primary server B, standby server A only intervenes if primary server B fails or other reasons prevent sits unable to run, so during the standby server A failure, all operating tank parameters, historical data and audit trails are operating normally on primary server B. There is no effect on the production of enlamycin. Because the maintenance of the backup server A only involves replacing the motherboard, when the server A repair is completed, the fermentation system automatically synchronized to the main server B, all parameters and settings have not changed, the fermentation system reverts to the normal redundant design, will not affect subsequent production. The fermentation personnel verified the historical data and audit tracking between 2019.03.29 and 2019.04.05, and the records showed no abnormalities. Check the audit trail and historical curve between 2019.03.31 and 2019.04.15 again, and no abnormal events and data loss were found. After a re-investigation of the audit trail, it was found that at 14:05 on 2019.03.31, there was a systematic audit trail, described as SERVER_115, sourced as THE SERVER_115, the source is THE NUMBER of THE ROOT causes of the deviation in the left column.<br><br>1. Replace server A motherboard.<br>2. Revise the "H3-TM-22528-A03 PKS Fermentation Computer Control System Audit Tracking Common Description Control Table" to add the description of the backup server.

At 15:03 on April 11, 2019, Yang Zhi found that the fan of standby server a was abnormal during the monthly backup of PKS system of fermentation computer in building Y108. After connecting the display to standby server a, there was no response. Forced restart of server a failed to start.<br>The most likely reason for this deviation is that the main board of server a is aging due to its long-term operation, causing server a to stop running unexpectedly.<br>Impact assessment and risk assessment in the right column: it is described as backup server, and the current value is CPU a down. According to the description, it should belong to the loss of connection between server a and main server B, and this audit trail will be generated when server a fails. "H3-tm-22528-a03 PKS fermentation computer control system audit tracking common description comparison table" does not clearly specify the status of backup server, and the data reviewers did not find the server a fault in time. In conclusion, the failure of standby server a did not affect the normal production of enramycin fermentation, and would not affect the product quality. However, "backup server" is not described in the "h3-tm-22528-a03 PKS fermentation computer control system audit tracking common description Checklist", which causes the data reviewer to fail to find the abnormality in time, so it is necessary to supplement this SOP.<br>Since the primary server B is the first choice for the operation of fermentation computer in building Y108, the standby server a only intervenes when the primary server B fails or is unable to operate due to other reasons. Therefore, during the failure of standby server a, the parameters, historical data and audit trail of all operation tanks operate normally on the primary server B, which has no impact on the production of enramycin. Since the maintenance of standby server a only involves replacing the main board, when the maintenance of server a is completed, the fermentation system will automatically synchronize to the main server B, all parameters and settings have not changed, and the fermentation system will return to the normal redundant design, which will not affect the subsequent production. Fermentation personnel have verified the historical data and audit trail between March 29, 2019 and April 5, 2019, and the record shows that no abnormality is found. Check the audit trail and historical curve between March 31, 2019 and April 15, 2019 again, no abnormal events and data loss are found. After the re investigation of audit trail, it was found that there was a systematic audit trail at 14:05 on March 31, 2019, described as server_115, source as rendant, and the root cause of the deviation in the left column later.<br>1. Replace the main board of server a.<br>2. Revise "h3-tm-22528-a03 PKS fermentation computer control system audit tracking common description Checklist" and add the description information of backup server.