Planning Storage Solution • The planning of server storage solution depends on the following factors. The amount of storage space a server needs. The number of users will be accessing the server. The sensitivity and importance of data that is to be stored on the server. 4/4/2015 www.facebook.com/jetkingallahabad 1 Storage Requirements • The storage space required for the server depends on a number of factors. Operating systemPaging file Memory dump Log Files Shadow copies Fault tolerance 4/4/2015 www.facebook.com/jetkingallahabad 2 Storage Technology Storage Technology DAS Direct Attached Storage 4/4/2015 NAS Network Attached Storage www.facebook.com/jetkingallahabad SAN Storage Area Network 3 DAS Direct-attached Storage • DAS is a storage technology that allows you to store data to the storage location, which is directly attached to a server either as internal hard disk or as a rack-mounted redundant Array of inexpensive Disk (RAID) connected to a server with the help of SCSI or Fiber Channel. • जब server डाटा को store करने के लऱए इंटरनऱ HDD या RAID का use करता तो इस टे क्नोऱॉजी को DAS कहा जाता है | 4/4/2015 www.facebook.com/jetkingallahabad 4 NAS Network-attached Storage • NAS is a data storage technology, which allows you to store the data on a network storage location and provide data accessibility to multiple clients. • NAS एक data storage technology है जजसमे server डाटा store करने के लऱए ककलस नेटवकक ऱोकेशन का use करता है ताकक नेटवकक users उस डाटा को एक्सेस कर सकें | 4/4/2015 www.facebook.com/jetkingallahabad 5 SAN Storage Area Network SAN is a data storage technology in which remote storage devices are connected to a server. It provide fault tolerance It is more expansive and complicated to implement. It provide an excellent performance. 4/4/2015 www.facebook.com/jetkingallahabad 6 Working with volume Create a volume Extend a volume Shrink a volume Configure a mount point on a volume 4/4/2015 www.facebook.com/jetkingallahabad 7 Working with volume Simple volume Spanned volume Mirrored Striped RAID-5 4/4/2015 www.facebook.com/jetkingallahabad 8 Working with volume • A spanned volume is a dynamic volume that consists of disk space on more than one physical disk. 4/4/2015 www.facebook.com/jetkingallahabad 9 Mirrored volume –RAID-1 • A mirrored volume is a hard drive or other form of storage media that stores an exact copy of the data from another volume. It is used for fault tolerance. 4/4/2015 www.facebook.com/jetkingallahabad 10 Striped volume-RAID-0 • A striped volume is a dynamic volume that stores data in stripes on two or more physical disks(RAID-0). 4/4/2015 www.facebook.com/jetkingallahabad 11 RAID-5 4/4/2015 www.facebook.com/jetkingallahabad 12
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