Strata IT Training Chapter 10 Advanced Storage Topics

Using Hard Drives (HDD) (217) Installation –PATA installation –SATA installation Logical Configuration –Partitioning Establish storage size on drive surface Assigns a drive letter –Formatting Provide file and data organization Computer Technology Training 2Strata IT Chapter 10 - Advanced Storage Topics

PATA Disk Installation Molex power connecton Ribbon Cable Drive selection –Master –Slave Cable select Drive Jumper Computer Technology Training 3Strata IT Chapter 10 - Advanced Storage Topics

SATA Versions SATA –1.5Gbps bandwidth –Throughput - 150MBps SATA II –3.0 Gbps bandwidth –Throughput 300 MBps SATA III –6 Gbps bandwidth –Throughput 600 MBps Computer Technology Training 4Strata IT Chapter 10 - Advanced Storage Topics

Partition –Creates distinct storage areas –Use Disk Management utility –Assigns a drive letter Each partition appears as separate drive Format –Creates a file system on a partition –Necessary for OS to access that storage area –File system types: FAT and FAT32 NTFS Disk Setup Computer Technology Training 5Strata IT Chapter 10 - Advanced Storage Topics

Disk Manager Right-click Computer Click Manage Click on Disk Management Initialize disk –Basic –Dynamic Allows combining multiple drives Create disk partition –Also shrink a disk partition Format disk –NTFS or FAT32 Computer Technology Training 6Strata IT Chapter 10 - Advanced Storage Topics

Demo Time Computer Technology Training Strata IT Chapter 10 - Advanced Storage Topics 7

Flash-Based (219) Solid state – nonvolatile memory –Like RAM, but does not require power to retain contents –No moving parts Immune to vibrations Used in portable devices Limited but growing capacity –2 GB – 32 GB Computer Technology Training Strata IT Chapter 10 - Advanced Storage Topics 8

Flash Memory Types CompactFlash SD (Secure Digital) –SDHC –SDXC –miniSD Memory Sticks USB flash drives (jump drives) –256 GB or more Formats are not inter-changable Computer Technology Training 9Strata IT Chapter 10 - Advanced Storage Topics

SSD Drives Work on same technology as flash memory packaged in hard drive enclosure. Much Higher Speed than HDD Higher cost than HDD Lower capacity than HDD Do not have performance issues such as fragmentation that occur with HDD Have limited number of read/write cycles Computer Technology Training 10Strata IT Chapter 10 - Advanced Storage Topics

SSD Drive Shopping Computer Technology Training 11Strata IT Chapter 10 - Advanced Storage Topics

Demo Time again

Comparing HDD and SSD HDD have highest capacity and cost less –Up to 4 TB per drive –SSD are generally less than 500 GB (1/2 TB) SSDs degrade with repeated deleting and rewriting of data making them slower and more errors. –Do not Defragment SDD drives Computer Technology Training 13Strata IT Chapter 10 - Advanced Storage Topics

SCSI (226) (Small Computer System Interface) Older technology Network of devices –SCSI Chain Used mostly with servers Require separate controller card –Host adaptor Ribbon cable –50 – 68 – 80-pin cable 14

SCSI Chain Each device must be assigned a unique device ID (0-15) –Determines priority 7 highest –> > 8 Each end of the chain must be terminated. Up to 16 devices on SCSI-2 Computer Technology Training 15Strata IT Chapter 10 - Advanced Storage Topics

End of Chapter 10 Presentation