Your current position：Home > Technical GuideOn a certain day, the customer reported that the IBM P770 (9117-MMB) small machine was down.
The customer reported a HP EVA 8400 disk array drive failure, and during on-site processing, the SMA manager was found to be unresponsive.
A ceph cluster consisting of 5 physical servers, one of which was down for replacement due to memory corruption. After the replacement was completed, the cluster state of the node was found to be abnormal.
A customer's server room power transformation, after the power repair is complete, the physical server will be powered up to normal state, start the virtual machine in openstack, one of the virtual machine can not start, at the same time there is another
A customer's core production storage is built by two HDS G200 GAD dual-activation. Server room power failure, all equipment down, power restoration, emergency restoration of a single G200 to provide services to the outside world (a service provider op
Unix UOS terminal logs into the graphical interface (i.e., the following figure), enters the correct domain user name and password, and is unable to log in normally. Even if you use a local user, you cannot log in, and after clicking Log in, you are aut
Faultdescription1.Anodeofthevirtualmachinekeepsreportingtheerror:"LostaccesstovolumeXXduetoconnectivityproblems,restorationattemptsareinprogress", andatthesametimepr
The customer reported that an IBM P260 VIOS and VIOC could not be connected. Login HMC to view the host IBM P260 connection status for no connection, preliminary judgment of the motherboard failure.
Customer IBM x3650 M5 server is down. Reboot the machine found that it could not start normally, logged into the IMM to check event log, found that DIMM16 reported an error, initially judged that the memory is damaged.
Customers reported HP EVA4400 storage hard disk failure, the appearance of the location showing slot2 hard disk failure. Engineers are ready to replace the faulty hard disk, logging into the EVA management console prompts controller2 (Figure 1)
The customer's multiple host systems are reporting storage disk failures at the same time, and the initial inference is that the storage is failing.
Expand the Linux file system according to the customer's demand.
A Linux system has an abnormal disk usage. df -h finds that the disk usage is 100%, after rebooting and trying df -h again, the disk usage is still 100%. The application is not occupying the deleted data through lsof; du -sh / view / directory
A Linux system frequently reboot, log in to view the discovery: a large number of oom in the log, memory overflow alarms, after each reboot, do not start any application, the host memory is quickly occupied
A customer's TSM backup duty officer reports that a drive on the TSM server is working abnormally, only one channel is available for backup, and part of the schedule fails due to the lack of a channel.
Customer feedback a set of business database often appear card slow, even input characters will appear delayed effect, restart, database query speed is improved, but with the use of increased frequency...
Received a customer service request and arrived to find a ceph status alarm indicating that one of the pg statuses was reporting an error causing a slow service response involving osd.1.
客户一台IBM P750主机，PowerVM 环境，其中一个VIOC在日常监控中发现CPU使用率有上升趋势。
某客户应用生产系统是使用两节点Oracle RAC数据库环境，6月19日应用运维人员对其进行数据清理和导数操作后，两个数据库节点的CPU使用率频繁达到90%以上，并持续了近10天，严重影响后续任务的执行。
GbE2c以太网刀片交换机需要变更并备份配置，但交换机的管理密码丢失，无法登录对设备进行管理，所以需要重置交换机管理密码。
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