A system administrator is preparing to run a preservation install and would like to use and hdisk that was no longer needed in datavg. Which of the following processes should be used to make it available for configuration?（） chdeb -1 hdiskxxx -a pv=clear; chdev -1 hdiskxx -a pv=yes。 exportvg datavg; importvg -y rootvg hdiskxx。 rmdev -1 hdiskxxx; mkdev -1 hdiskxxx -a pv=avail。 reducevg datavg hdiskxxx; extendvg rootvg hdiskxxx。
简述厌氧生物处理系统中，不产甲烷菌和产甲烷菌之间的相互关系。
Sometimes performance is more important than availability （e.g.， in cases where the data can be easily re-created）. Which of the following is the appropriate disk configuration for an application that requires faster writes over availability（） RAID 1。 RAID 6。 RAID 0 + 1。 RAID 0。
A pSeries technical specialist has just returned from an internal course for implementing Micro-Partitioning on the POWER5 range of servers. There were many handouts from the course. To ensure the rapid transfer of the newly acquired skill， what should the technical specialist do？（） Make copies of the course material and deliver the course in full to the technical team.。 Make copies of the course material and hand them out to the technical team for them to read.。 Become the Micro-Partitioning expert within the organization and act as the sole knowledge base.。 Make copies of the course material and prepare a concise overview of the course to deliver to the technical team.。
气瓶的充装后所测重量是指（）。 实瓶质量。 气瓶净重。 空瓶质量。
A system administrator is attempting to unmount filesystem /dev/data and receives the following message：
umount： 0506-349 Cannot unmount /dev/data： The requested resource is busy.
Which of the following commands can be used to determine which process has open references within the filesystem？（）
