单项选择题 Astaffmemberreportsthattheycannotaccessthesharedfolderonthenetwork；however，other staffmembersarereportingthattheycanaccessthesharedfolder.Whichofthefollowingisthe BESTwaytoidentifytheproblem？（）

单项选择题 Which of the following BEST describes a DAS?（）

单项选择题 A server consists of two 72GB SCSI drives and four 146GB SCSI drives. All drives are attached to RAID  controller. The system administrator has decided to configure all six drives in a RAID 5 array.  How much usable disk space will this array have？（）