dell r900 server

◆ 1. For WINDOWS systems, password breaking software can be used to break the password, but it is different for LINUX systems. The following describes the specific operations: 1. After the server is restarted, press the key e to select the second item in the last three items, press the key e, enter linux single (single user mode), and press Enter. 2. Press the second key B and enter bash (clear password) and press Enter. 3. Enter passwd root and pr

1. Install the DEST tool on the local sideHttp://www.dell.com/support/article/cn/zh/cnbsd1/SLN287927_zh/zh?c=cns=bsdcs=cnbsd1l=zh2. connect idrac port ( Span style= "Font-family:simsun;" lang= "en-us" xml:lang= "en-US" >192.168.0.120 0 segment ip , interworking on the line. 3. The administrator runs the dest CLICommand : dellsysteminfo.exe-s 192.168.0.120-u root-p calvin-n root/dcim-d hw,st-r c:\logIdrac User name Root Password Calvin (password is the default password)4. You can a

if the value of await is much higher than the value of SVCTM, the I/O queue waits too long for the applications running on the system to become slower.- C parameterIostat can also be used to get CPU partial state values:Iostat-c 1 10avg-cpu:%user%nice%sys%iowait%idle1.98 0.00 0.35 11.45 86.22avg-cpu:%user%nice%sys%iowait%idle1.62 0.00 0.25 34.46 63.67Common usageIostat-d-K 1 #查看TPS和吞吐量信息 (disk read and write speed in KB) iostat-d-M 2 #查看TPS和吞吐量信息 (disk read and write speed in MB) iostat-d-x-k 1

Dell server operations 1. Raid problems: # Deleting existing Raid configurations MegaCli64-CfgLdDel-LALL-aALL # Obtain the device ID and Slot Number MegaCli64-PDList-aALL | egrep 'enclosure Device ID | Slot Number '| awk 'nr % 2 = 0 {print $3}; NR % 2! = 0 {print $4 ;}' # Create Raid5, $ sdaslots is the disk ID and slot number used to create Raid that meet the parameter requirements. The size is 500 GB. Meg