单项选择题

Which disk configuration provides the fastest write performance with fault tolerance（）

A.RAID 0
B.RAID 6
C.RAID 5
D.RAID 1+0

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单项选择题

An administrator plans to attach an IBM DS6000 and needs to know if the fibre channel adapter is at the latest firmware level.
Which of the following is the fastest way for the administrator to determine the atest supported microcode level （）

A.Call Techline
B.Validate via DS6000 menu
C.Access IBM Storage Website
D.Contact the IBM Business Partner

单项选择题

During reboot， the system hangs with an LED 0554 message that means， "The boot device could not be opened or a read failed."
Which of the following recovery procedures should be taken （）

A.Boot in maintenance mode and use fsck to check hd5.
B.Boot in maintenance mode， access the rootvg and check the /etc/inittab for corruption.
C.Boot in maintenance mode， access the rootvg and rebuild the boot image using the bosboot command.
D.Boot in maintenance mode， and reset the root password.

单项选择题

An administrator needs to replace a failed internal disk in a mirrored rootvg. Which of the following is one of the steps that must be followed（）

A.Deallocate rootvg mirror
B.Use hot replace manager
C.Break rootvg mirror
D.Deallocate LPs from failed disk