A customer has an EMC Symmetrix DMX3000 that is at the end of lease. The environment consists of IBM System p， IBM System i， and IBM System z. The customer is evaluating EMC， HDS， and IBM storage as possible replacements. They are interested in comparing the performance of all three disk subsystems. Which tool compares performance（） Capacity Magic。 eConfig。 TPC for Disk。 Disk Magic。
解释vensys变桨工作有几种模式,每种模式下工作工作条件分别是什么?
A customer’s new rack contains 12 x p655 servers. The customer currently has an HMC with one 128-port async adapter with a rack mounted 16-port RAN. The HMC is already attached to two pSeries p630s. What upgrades， if any， are needed to the HMC to support the new p655 servers？（） No upgrades are needed.。 Add another 16-port RAN.。 Add an 8-port async adapter.。 Add an additional 128-port adapter.。
You are using Recovery Manager (RMAN) to perform backups. In which three situations would you perform a compressed backup?（） You are backing up to tape and your tape device performs its own compression.。 You are making image copies, and you have not enabled tablespace compression.。 You are using disk-based backups and disk space in your Flash Recovery Area, or other disk-based backup destinations are limited.。 You are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage.。 You are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.。
大二男生张三，屡次在考试中出现不及格。辅导员问其原因时，张三总是回答：“老师出的题目太难”，或“我都认真复习了，但老师出题太偏”，或“没地方看书，寝室和教室都太吵，图书馆位子又太少”。而辅导员从其他同学处了解到的情况则是：“他在谈恋爱，根本没看他看什么书。”该生对自己行为的归因属于（）。 不稳定性、内在性、可控归因。 外在性、不可控归因。 不稳定性、内在性、不可控归因。 稳定性、内在性、不可控归因。
水准测量时，水准标尺应保持（）放置。
