User contributions for Admin
Jump to navigation
Jump to search
10 December 2023
- 11:5911:59, 10 December 2023 diff hist +645 N Smartctl Created page with "The smartctl Command Line Tool of Smartmontools is primarily used to query SMART attributes of hard drives and SSDs.<ref>https://www.thomas-krenn.com/en/wiki/Smartmontools_with_MegaRAID_Controller</ref> == Check RAID array list == can display which disks of the RAID controller are accessible. cat /proc/scsi/scsi == smartctl over LSI array == smartctl provides integrated support for MegaRAID controller sudo smartctl -a -d megaraid,N /dev/sdX Where <N> stands for the..." Tag: Visual edit
- 11:5611:56, 10 December 2023 diff hist +642 N Hardware RAID information on Linux Created page with "== Detect hardware RAID information == <syntaxhighlight lang="bash"> #Detect HW RAID controller information $lspci -knn | grep -i raid # install apt-get install lsscsi then list up HW raid manufacturer and model $lsscsi # Display the details about harddrives $lshw -class disk # 1 Find defined raid arrays then get device information $dmesg | grep -i scsi $smartctl --all /dev/<raid array> # To check physical disk health values smartctl --all -d <driver> command $ su..." Tag: Visual edit
- 11:5211:52, 10 December 2023 diff hist +20 SSD →Measuring wear Tag: Visual edit
- 11:5111:51, 10 December 2023 diff hist +8,223 N S.M.A.R.T. Attributes Created page with "'''S.M.A.R.T.''' ('''Self-Monitoring, Analysis and Reporting Technology'''; written as SMART) is a system for monitoring and early detection of errors of storage media such as hard disks or SSDs. <ref>https://www.thomas-krenn.com/en/wiki/SMART_Attributes_documentation#SMART_Tests</ref> Most hard drives and SSDs have SMART functionality. However, the data provided by SMART, (SMART attributes), are different from manufacturer to manufacturer. == General reference only..." Tag: Visual edit
- 11:3811:38, 10 December 2023 diff hist +935 Storcli →References Tag: Visual edit
- 11:0211:02, 10 December 2023 diff hist +1,524 Manual:DLS validation No edit summary Tag: Visual edit
- 10:5210:52, 10 December 2023 diff hist +540 Private:Troubleshooting →c++: fatal error: Killed signal terminated program cc1plus current Tag: Visual edit
- 10:3910:39, 10 December 2023 diff hist +74 Manual:DLS validation →stress-ng[1] Tag: Visual edit
- 10:3610:36, 10 December 2023 diff hist +82 Manual:DLS validation →stress-ng[1] Tag: Visual edit
- 10:3610:36, 10 December 2023 diff hist +421 Manual:DLS validation →stress-ng[1] Tag: Visual edit
- 10:2910:29, 10 December 2023 diff hist −2 Manual:DLS validation →Generating a virtual memory pressure[2] Tag: Visual edit
- 10:2910:29, 10 December 2023 diff hist +21 Manual:DLS validation →Generating a virtual memory pressure[2] Tag: Visual edit
- 10:2810:28, 10 December 2023 diff hist +95 Linux Kernel Tuning No edit summary Tag: Visual edit
- 10:2410:24, 10 December 2023 diff hist +163 Private:Optimization No edit summary current Tag: Visual edit
- 10:2210:22, 10 December 2023 diff hist +767 Manual:DLS validation →stress-ng[1] Tag: Visual edit
- 10:0010:00, 10 December 2023 diff hist +161 Page cache in Linux →Tuning the Page Cache current Tag: Visual edit
9 December 2023
- 14:2014:20, 9 December 2023 diff hist +803 N Page cache in Linux Created page with "== cached vs buffers == Linux is a general purpose operating system instead of having specific code paths to perform what is right for a single specific task. Linux uses all excess memory for its page cache. The linux page cache can be seen in /proc/meminfo with the statistic “Cached.” while The “Buffers” memory area is a memory area that holds raw disk data, meant as an intermediate buffer between processes, the kernel, and disk == Tuning the Page Cache == Pag..." Tag: Visual edit
- 14:1814:18, 9 December 2023 diff hist +304 Manual:DLS validation No edit summary Tag: Visual edit
- 14:1314:13, 9 December 2023 diff hist −16 Linux Kernel Tuning →Reference Tag: Visual edit
- 14:1314:13, 9 December 2023 diff hist +444 Linux Kernel Tuning →"1" > /proc/sys/vm/pagecache Tag: Visual edit
- 14:1214:12, 9 December 2023 diff hist +559 N Tunable kernel params Created page with " == vm.min_free_kbytes == vm.min_free_kbytes is used to force the Linux VM to keep a minimum number of kilobytes free. if this value to lower than 1024KB, the system will become subtly broken, and prone to deadlock under high loads. Setting this value too high will OOM your machine instantly. vm.min_free_kbytes effect to the amount of available memory display output from the command $free -m. Linux Wolfman described how vm.min_free_kbytes impact to system.<ref>https:/..." current Tag: Visual edit
- 14:0014:00, 9 December 2023 diff hist 0 m Kernel boot param Admin moved page Kernel boot param to Kernel kernel param
- 13:3113:31, 9 December 2023 diff hist +234 HBA/RAID controller →Native and Maximum supported disks Tag: Visual edit
7 December 2023
- 12:3412:34, 7 December 2023 diff hist +276 Sar →Command and options current Tag: Visual edit
- 12:2912:29, 7 December 2023 diff hist +421 Sar →References Tag: Visual edit
- 12:2112:21, 7 December 2023 diff hist +498 Sar →References Tag: Visual edit
- 12:1912:19, 7 December 2023 diff hist +136 Sar →Command and options Tag: Visual edit
- 12:1812:18, 7 December 2023 diff hist +2,024 Sar →Command and options Tag: Visual edit
- 12:1312:13, 7 December 2023 diff hist +226 Sar No edit summary Tag: Visual edit
- 12:0612:06, 7 December 2023 diff hist +744 Sar →sar system service Tag: Visual edit
- 11:4411:44, 7 December 2023 diff hist +1,953 N Iostat Created page with "iostat<ref>https://github.com/i4oolish/iostat/tree/master</ref> is a command-line utility that reports CPU statistics and input/output statistics for devices and partitions. == iostat command == <syntaxhighlight lang="bash"> #The basic syntax of the iostat command $iostat [options] [interval [count]] #options: options can be used to specify the type of statistics to be displayed, such as disk statistics, CPU utilization statistics, etc. #interval: The interval paramete..." current Tag: Visual edit
- 11:3311:33, 7 December 2023 diff hist +520 IOPS No edit summary Tag: Visual edit
- 11:2611:26, 7 December 2023 diff hist +143 IOPS No edit summary Tag: Visual edit
- 11:2411:24, 7 December 2023 diff hist +508 N IOPS Created page with "“IOPS” stands for “Input/Output Operations Per Second.” IOPS is an important performance metric for storage devices that shows number of read/write operations that a storage device can perform per second. A high IOPS number means that a storage device is capable of performing a large number of read and write operations in a very short amount of time. This can be beneficial for applications and systems that require fast and efficient access to storage resources...." Tag: Visual edit
- 11:2211:22, 7 December 2023 diff hist +4 Storcli →References Tag: Visual edit
- 11:1811:18, 7 December 2023 diff hist +4 Kernel tips and tricks →perf interrupt took too long in system log Tag: Visual edit
- 11:1711:17, 7 December 2023 diff hist +110 Storcli No edit summary Tag: Visual edit
- 10:4910:49, 7 December 2023 diff hist +797 Storcli →Create RAID group Tag: Visual edit
5 December 2023
- 10:0910:09, 5 December 2023 diff hist +334 Intel 4th Gen Xeon →XCC, MCC, and HBM Variants current Tag: Visual edit
- 09:4909:49, 5 December 2023 diff hist +872 Intel 4th Gen Xeon →4th Gen Intel® Xeon® Scalable Processors list Tag: Visual edit
- 09:4409:44, 5 December 2023 diff hist +22 N File:4th gen intel packages.png No edit summary current
- 09:3709:37, 5 December 2023 diff hist +20 N File:4th gen intel config.png No edit summary current
28 November 2023
- 17:3117:31, 28 November 2023 diff hist −36 Apache Spark →Use Apache Spark in Jupyter through PySpark current Tag: Visual edit
- 17:3117:31, 28 November 2023 diff hist +78 Apache Spark →Apache Spark Tag: Visual edit
- 17:2617:26, 28 November 2023 diff hist +1,176 N Apache Spark Created page with "== Apache Spark == Apache Spark<ref>https://spark.apache.org/</ref> is an open-source developed at UC Berkeley in Scala, Spark is a multi-language unified engine for large-scale data analytics, data science, and machine learning on single-node machines or clusters. Spark can easily support multiple workloads ranging from batch processing, interactive querying, real-time analytics to machine learning and graph processing. Unlike many other platforms with limited option..." Tag: Visual edit
- 16:1416:14, 28 November 2023 diff hist +140 Jupyter No edit summary current Tag: Visual edit
- 13:1913:19, 28 November 2023 diff hist +189 Jupyter No edit summary Tag: Visual edit
- 13:0713:07, 28 November 2023 diff hist +1,886 N Jupyter Created page with "== Project Jupyter == [https://jupyter.org/ Project Jupyter] is a non-profit, open-source project, born out of the IPython Project in 2014 as it evolved to support interactive data science and scientific computing across all programming languages. Jupyter will always be 100% open-source software, free for all to use and released under the liberal terms of the modified BSD license. Jupyter would be one of the great platform in education for [https://jupyter4edu.github.io..." Tag: Visual edit
- 12:5412:54, 28 November 2023 diff hist −2 IPython →Python Data Science Handbook current Tag: Visual edit
- 12:3212:32, 28 November 2023 diff hist −2 IPython →IPython vs Ipykernel Tag: Visual edit