Citrix Systemsメーカー4.1の使用説明書/サービス説明書
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Worldwide Consulting Solu tions XenServer for XenApp - Better Together Overview For the la st few years, IT professionals h ave questioned whether it m akes sense to virtualize XenA pp environm ents. The answer has alwa ys been “ it depends. ” In short, that answer has not chan ged.
2 Greater Av ailability Organizations are look ing for ways to provide great er availabil ity and responsivenes s to applications. This m eans being able to overcom e faults, failures an d surges in a.
3 Figure 1: Ph ysical XenApp Architecture Improving availab ility and flexibilit y often results in low er utilization rates because m ore physical servers are r equired.
4 W hen creating a load managed group, each group m ust provide enough redundan cy to be capable of supporti ng all users in the event of a server failure. T his results in an N+1 scenario where the re is at least one additional XenApp server per load managed gro up.
5 In addition, org anizations are also interes ted in becom ing more flexible by m oving with changing custom er needs. To achieve this, the IT organization m ust also be able to c hange or expand th e infrastructur e easily. In a trul y physical environment, this is dif ficult as servers require installation and configurat ion.
6 Figure 2: Xen Server Enterprise Architecture All components, excep t the Line - of -Busines s load managed grou p, will be virtuali zed inside of a XenSer ver Resource Po ol. This arc hitecture help s us to improve upon the 1:1 s erver to role ratio in the ph ysical world, deliver ing a 1:Man y ratio in the virtual wor ld.
7 Dev/Test: Utilizing X enServer Enterprise in the Dev/T est environm ent allows for e asier synchronizati on with production at a great cost savings.
8 image per serv er role. The architectur al advantages in troduced by leveraging the Provisioning Server c omponent of XenServer Platinum can be seen in Figure 3. Figure 3: Xen Server Platinum Architecture W ith the defined XenApp architecture, ther e are f ive distinct roles: 1.
9 modified. T hese modifications allow the ser ver to becom e part of the XenApp farm during server deliver y, as explained in the Xen App Integration step. Startup Phase: T he server is no longer using its localized op erating s y stem present on its local storage.
10 Results Based on the three arc hitectures identif ied within this docum ent, it should be c lear that a “ one si ze fits all solution ” is not the best approach. T he best appro ach should be able to integrat e the best utili zation, availability and flexibilit y for physical servers as well as virtual servers .
11 Conclusion Although ser ver virtualization is in high dem and, it should be used t o address busi ness requirem ents . Som e IT organizations are c onsidering implem enting a server vir tualization solution for m any aspects of their inf rastructure believing it wil l solve all of their e nvironmental challenges.
12 Notice The information in this publication is subject to change w ithout notice. THIS PUBLICATION IS PROVIDED “AS IS” WITHOUT W ARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING ANY W ARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.
デバイスCitrix Systems 4.1の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Citrix Systems 4.1をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはCitrix Systems 4.1の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Citrix Systems 4.1の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Citrix Systems 4.1で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Citrix Systems 4.1を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はCitrix Systems 4.1の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Citrix Systems 4.1に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちCitrix Systems 4.1デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
