Software disk array is a cheap fault-tolerant mechanism
The following describes the RAID5 performance and backup balance considerations
1: First we can view the two hard drives we added, of course we can practice
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/58/23/wKiom1SqCYnCneNiAAK_cX8khjI342.jpg "title=" 1.PNG " alt= "Wkiom1sqcyncneniaak_cx8khji342.jpg"/>2: Partitioning the hard disk
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/58/23/wKiom1SqCeKCTKdQAAJMcuTi-Xk063.jpg "title=" 2.PNG " alt= "Wkiom1sqcekctkdqaajmcuti-xk063.jpg"/>3: Create RAID5,--create create--auto=yes auto/dev/md0 software disk array name
--level the level of the software disk array, because we're going to create RAID5,--raid-devices=4 a few blocks into the disk array
--spare-devices=1 an alternate/dev/sdc{5,6,7,8} to join the partition
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/58/20/wKioL1SqCs7CsP09AADch6GV4Ho374.jpg "title=" 4.PNG " alt= "Wkiol1sqcs7csp09aadch6gv4ho374.jpg"/>4: View details of our created details
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/58/23/wKiom1SqC2Sw6huVAAIOHwslmm4627.jpg "title=" 5.PNG " alt= "Wkiom1sqc2sw6huvaaiohwslmm4627.jpg"/>5: Another way to look at it, followed by the s in SDC to indicate that it is free
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/58/20/wKioL1SqDFGx9UDBAADCC7xBU5w349.jpg "title=" 6.PNG " alt= "Wkiol1sqdfgx9udbaadcc7xbu5w349.jpg"/>6: Format File system
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/58/23/wKiom1SqC9DhA5l0AAJEWO9400E485.jpg "title=" 7.PNG " alt= "Wkiom1sqc9dha5l0aajewo9400e485.jpg"/>7: Creating a mount directory mount our created disk array, DF view
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/58/20/wKioL1SqDK7jv72jAAFMaT130GE440.jpg "title=" 8.PNG " alt= "Wkiol1sqdk7jv72jaafmat130ge440.jpg"/>8: proof of operation is available
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/58/20/wKioL1SqDS6gnzmCAAC8ed34o58668.jpg "title=" 9.PNG " alt= "Wkiol1sqds6gnzmcaac8ed34o58668.jpg"/>9: Manually making a partition error, simulating fault tolerance
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/58/23/wKiom1SqDKDQFcAJAABlPMjbJeQ468.jpg "title=" 10.PNG "alt=" Wkiom1sqdkdqfcajaablpmjbjeq468.jpg "/>10: Can see/DEV/SDC9 replaced/DEV/SDC8, automatic replacement!
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/58/20/wKioL1SqDZyQSt_tAAIETEbAMdk070.jpg "title=" 11.PNG "alt=" wkiol1sqdzyqst_taaietebamdk070.jpg "/>11: Expand the disk array!
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/58/20/wKioL1SqDhegjvgkAAI5rstvlb4236.jpg "title=" 12.PNG "alt=" Wkiol1sqdhegjvgkaai5rstvlb4236.jpg "/>
12
Thank you all for making progress together.
This article is from the "Make a few" blog, be sure to keep this source http://9399369.blog.51cto.com/9389369/1599247
Software disk array RAID5