vmware
من الشركات الرائده في عالم الاجهزه التخيليه virtual machine و virtual server
ما هو vsphere
هو برنامج من انتاج شركه vmware وهو الابضيد للنسخه السابقه vmware esx 3.5
ولكنها جائت بفكره مختلفه تماما وتقنيا عاليه جدا فهي طفره في عالم الشبكات والسيرفرات
اولا ما هو visualization
هو عباره عن تقسيم ل physical resource مثل ram ,processor ,dynamic attached storage(hard-disk
علي مجموعه من الاجهزه
تكون كتالي
جهاز واحد physical machine (قبل تقنيه vsphere)
واي عدد من الاجهزه virtual machine
بافتراض ان لديك جهاز physical
ram 2GB
pro 3.0
hard disk
sound
vga
لن اتطرق الي كيفيه انشاء وتشغيل ال vmware لثره الشروحات هنا بالمنتدي ولكن ساشرح فكره التشغيل
فهنا ستقوم باعطاء الجهاز الاول جزء من الرام والبروسيسور وايضا الجهاز الثاني
فاذا كنا نريد انشاء جهازين الاول server 2003 والثاني ubuntu 9.10
فسنقوم بانشاء جهازين علي الvmware ولا ننسي ان الوندوز ياخد من الريسورس اكثر من الينكس
---------------------------
vsphere
خصائصه
-1 High Availability
2-vmotion
اي انه في حاله تعطل اي physical server يقوم البرنامج تلقائيا بنقل virtual machine علي اي سيرفر اخر اي انه ليس لدينا down time
3-Hot Add Virtual Devices
اضافه رام او بروسيسور دون ايقاف السيرفرات او ال data center
4-Fault Tolerance
A protected VM has a shadow VM in lockstep on another host
Zero downtime in the event of primary host failure
Automatic secondary protection after initial failover
حيث ان الاجهزه الفعليه موجوده علي san storage وليست علي physical machine
والان فكره عامه
هو عباره عن تطبيق لفكره ال pool علي physical recurse اي دمج كل ال ram الموجوده علي servers في data center وجعلهم وحده واحده وكذلك processors وبالنسبه لل storage فهو يتعامل مع san storage علي اختلاف انواعها سواء كانت
fiber Chanel san storage,scsi san storage,iscai san storage,nas san storage
san-اختصار-storage area network
فهي عباره عن وحده تخزين متصله بالشبكه
بالنسبه لفكره ال pooling فهذا البرنامج يقوم بدمج ال ram والبروسيسور كوده واحده ومن ثم يقوم بتقسيمها علي gust machine اي السيرفرات التخيليه vm التي تم تقسيمها
مثال علي ذلك لو عندي
عدد 4 سيرفر
كالتالي
ram 2 3 2 12
pro 3.0 3.0 3.0 3.0
يقوم vsphere بدمج كل ram ليصبح لدينا 19 GB رام
وكذلك اليروسيسور والهارد كما ذكرنا سابقا انه يستخدم san storage
هو يقوم بدمج وتوزيع الريسورس الموجوده في الشبكه
الموضوع لم يكتم بعد
يمكنكم تحميل شرح للبرنامج من هنا
كود PHP:
https://hotfile.com/dl/11465381/c0cb3a3/Train.Signal.VMware.vSphere.Training.DVD1-fJr.part01.rar.html
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او من هنا
كود PHP:
Train Signal - VMware vSphere Training DVD2 - fJr
https://rapidshare.com/files/273791378/softarchive.net_TS-VSphere-D2.part01.rar
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او من هنا
كود PHP:
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او من هنا
ولكن نظرا لكثره الاسئله علي هذا البرنامج فهذا شرح مبسط جدا لفكره البرنامج
واعزروني اذا كانت هناك اخطاء يمكنكم مراسلتي عبر الموقع التالي
https://mohameditp.t35.com
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