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Hardware

舊機改造計畫之二 CPU and 顯示卡驅動

續之前的老舊電腦改裝成NAS分享伺服器之後工作室的地上還躺著一台從同事那接收過來的使用LGA775 CPU的ASUS P5B-E-Plus主機板習慣是機器放在工作室常常看著那天也許會突然想到可以應用在什麼用途也不一定就是研究對岸的圾垃佬玩洋垃圾的Youtube影片中看到最早的報癈電腦零件中有大神把伺服器專用的CPU想方設法弄到桌機上來使用一來報廢伺服器CPU很便宜二來是效能可對比桌機版的高階CPU效能。對岸指的洋垃圾都是在國外被汰換下來的伺服器零組件有CPU、記憶體、主機版、硬碟、介面卡被廢棄回收商收購重回到二手巿場上因為是專為長時間不關機設計所以零件的耐用度比桌機要耐用上許多理所當然成為最佳升級材料來源。目前服務的公司每年也都會有汰換下來的各式電腦伺服器主版都是特殊規格不是很適合放在家中使用多半把CPU、RAM、HDD和擴充卡留下來當備品。這次要用到的LGA771就是從Dell PowerEdge 2950汰舊的Xeon 5410 在公司服務的時間早己超過十年至今仍有一部份2950還在線上工作著。看網上分享的作法要先把Xeon的觸點絕緣掉

Hardware

How to fix Lenovo T420 Nvidia brightness issue under Ubuntu

Reference Link https://wiki.debian.org/NvidiaGraphicsDrivers Configuration As the NVIDIA driver is not autodetected by Xorg, a configuration file is required to be supplied. Modern Debian packages for the NVIDIA driver should not require you to do anything listed here as they handle this automatically during installation, but if

Object Storage

Dell R720XD H710P mini B0 IT Mode Flashing

Enhance TrueNAS like as Software RAID performance

Linux

Install RHEL8.X support Dell PERC6/6i and H700/H800 old megaraid_sas

參考網路上的分享文章 https://gainanov.pro/eng-blog/linux/rhel8-install-to-dell-raid/提到有網路位置分享RHEL8不支援的driver disk image ISO檔 https://elrepo.org/linux/dud/el8/x86_64/可以在光碟開機安裝選擇畫面下按下[Tab] key然後在最後輸入下列範例>vmlinuz installrd=initrd.img inst.dd=https://elrepo.org/linux/dud/el8/x86_64/dd-mpt3sas-28.100.00.00-2.el8_1.elrepo.is 在公司機房我把支援CentOS8.3/OEL8U3的 Boot ISO

Linux

How to Clean RAID Signatures on Linux

By Eric Ma | In Hardware, Linux, Tutorial | Updated on Aug 16, 2015 RAID systems such as MegaRAID add signatures to disks to maintain the infomration on these didks. When we simply remove these disks and install them to another server, Linux on the new server may detect these RAID signature

Hardware

Dell RAID 卡對應 LSI 型號

以下是DELL PERC 對應 LSI OEM/型號 DELL PERCChipRelated LSI RAID/HBAPERC5/i, PERC5/e, PERC5/i Integrated InternalIntel IOP333 I/O Processor + LSISAS1068MegaRAID SAS 8408E/8480EPERC 6/ILSISAS1078 RAID on Chip (ROC)MegaRAID SAS 8888ELPSAS6/irLSISAS1068ELSI SAS 1068ESAS5i & SAS5ELSISAS1068LSI SAS 1068PERC H200LSISAS2008LSI SAS 9211-8iPERC H700/800LSISAS2108 RAID-on-Chip (ROC)MegaRAID

AS400

Quick Tip: How To Find OS Version On IBM i

To find the OS version of an IBM i (iSeries, AS/400), use the steps below: Type the following on the command line: DSPSFWRSC Press [F11] The above commands will result in a screen similar to the one below:DSPSFWRSC Screen

configuration

Brocade FOS CLI COMMANDS

This is a list of useful Brocade CLI commands that I keep at my desk for reference. They are divided up into categories for Zoning, Show, Port, Time/Date, License, Banner, Password, SNMP, User Config, Firmware, and Miscellaneous. Other Useful Brocade related posts Automating Config Zone Backups Scripting Alias and

Hardware

Ubuntu hardware display tool i-nex

IT

SCSI INQUIRY command

(2)INQUIRY command： * 第二個要介紹的命令是INQUIRY命令，這個命令用來要求裝置傳回本身的資訊，其欄位如下： INQUIRY command * 這裡要注意的是 EVPD 位元，如果是0，表示要傳回標準資料；如果是1，表是要傳回特定資料‧此位元須與page配合使用，才能讀到正確資料。命令送出後，如果成功，就會傳回下面格式的資料在data陣列中： Standard INQUIRY data format * 底下，筆者稍微介紹各欄位名稱及用途： * Peripheral qualifier(週邊限定) * 判斷是否有連上所詢問裝置的邏輯單元(LUN)，如果有則為0。 Peripheral device type(裝置型態碼) * 指出裝置的型態代碼，代碼及意義如下表：代碼描述 * 00h直接存取裝置(Direct access device)\ * 0

Hardware

Fibre Channel wikipedia

From Wikipedia, the free encyclopediaJump to navigationJump to search Fibre Channel (FC) is a high-speed data transfer protocol (commonly running at 1, 2, 4, 8, 16, 32, and 128 gigabit per second rates) providing in-order, lossless[1] delivery of raw block data[2], primarily used to connect computer data storage

Dell

Update the Dell 2TB SATA DISK firmware method

一開始用之前制作的USB DOS開機碟來處理Dell隨機附的硬碟firmware更新, 但在R720xd上卻不能用會直接顯示重開機或換碟後來跟利用iDrac上的UI找到物理碟盤展開後可以查到硬碟型號與相關的資訊, 拿查到的型號在Dell網站搜尋找到一檔案 Nautilus_efi_A12_ZPE.exe 執行後解開有一工具程式可以使用256MB or 大一點的容量來制作工具碟, 我用16GB的碟反而不認得, 後來是找了2GB的碟或真的用256MB的就可以被偵測到並寫入檔案https://www.dell.com/support/home/ae/en/aedhs1/drivers/driversdetails?driverid=wmkvj 一關始我以為這個碟可以像之前的工具碟一樣直接開機, 發現並不行又試著用工具程式製作了ISO檔並用iDrac上的虛擬光碟機掛開機開機也不行經檢查發現此ISO檔很小只包了開機部份沒有其他內容檔案最後因為上面的檔案名有efi副檔名, 讓我聯想到之前幫同事利用Dell UEFI boot Uility UI選efi檔案來