1. Data Storage and Backup Strategies Joe Cicero Revised by Jeanne Conlon Northeast Wisconsin Technical College

2. This Presentation Will Cover… Hard Copy - paper Hard Copy - paper Floppy Floppy Zip Disk Zip Disk USB Memory Stick / Flash Memory USB Memory Stick / Flash Memory Backup Partition Backup Partition External / 2 nd Hard Drive – usb / 1394 etc External / 2 nd Hard Drive – usb / 1394 etc Tape Tape CD-R / CD-RW CD-R / CD-RW DVD-R / DVD-RW DVD-R / DVD-RW

3. Data Storage / Backup Media… Things to consider Ease of use Ease of use Ease of setup Ease of setup Durability (MTBF – mean time before failure) Durability (MTBF – mean time before failure) The ability of a product to be reused, without significant degradation. The ability of a product to be reused, without significant degradation. Resilience Resilience Resilience generally means the ability to recover from some shock, or disturbance. Resilience generally means the ability to recover from some shock, or disturbance. Susceptibility to EMI Susceptibility to EMI Electromagnetic Interference. A naturally occurring phenomena when the electromagnetic field of one device disrupts, impedes or degrades the electromagnetic field of another device by coming into proximity with it. Electromagnetic Interference. A naturally occurring phenomena when the electromagnetic field of one device disrupts, impedes or degrades the electromagnetic field of another device by coming into proximity with it. Capacity Capacity The amount of space inside a container provided for a given amount of product. The amount of space inside a container provided for a given amount of product. Transfer rates Transfer rates The rate at which data can be transferred, The rate at which data can be transferred, Cost Cost Reuse Reuse Portability Portability

4. Hard Copy - Paper Pro’s Pro’s Ease of use Ease of use Easy to print things Easy to print things Ease of setup Ease of setup Easy to setup a printer Easy to setup a printer Durability (MTBF) Durability (MTBF) Fire / Water but other media will have a problem with this also Fire / Water but other media will have a problem with this also Resilience Resilience Dependent upon type of paper and ink Dependent upon type of paper and ink Susceptibility to EMI Susceptibility to EMI No No Con’s Con’s Ease of use Ease of use It is not electronically searchable! It is not electronically searchable! Capacity Capacity How much paper do you have? How much paper do you have? Transfer rates Transfer rates Slow, print everything? Slow, print everything? Cost Cost Costly – paper, ink/toner, storage costs! Costly – paper, ink/toner, storage costs! Reuse Reuse Not really reusable – maybe 1 time (back of sheet) Not really reusable – maybe 1 time (back of sheet) Portability Portability Small amounts may be portable but not large boxes of paper backups! Small amounts may be portable but not large boxes of paper backups!

5. Floppy Pro’s Pro’s Ease of use Ease of use Pretty easy to use (if your system has one) Pretty easy to use (if your system has one) Ease of setup Ease of setup Requires little or no setup. Requires little or no setup. Durability (MTBF) Durability (MTBF) Drive has 30000 power on hours / 3.2 years Drive has 30000 power on hours / 3.2 years Re-usable Re-usable Yes, but may cause failure sooner Yes, but may cause failure sooner Portable Portable Yes, but not if you have large amounts of data Yes, but not if you have large amounts of data Con’s Con’s Durability (MTBF) Durability (MTBF) Floppies fail often Floppies fail often Resilience Resilience Only somewhat resilient Only somewhat resilient Susceptibility to EMI Susceptibility to EMI Yes Yes Capacity Capacity Very small capacity 1.4 meg Very small capacity 1.4 meg Transfer rates Transfer rates Slow - 500/300/250 kByte/s Slow - 500/300/250 kByte/s Cost Cost Would require many floppies, storage costs, etc. Would require many floppies, storage costs, etc.

6. Zip Disks Pro’s Pro’s Ease of use Ease of use Fairly easy to use (much like a floppy) Fairly easy to use (much like a floppy) Durability (MTBF) Durability (MTBF) Disk is 100000 hours / Over 10 years on drive (est.) Disk is 100000 hours / Over 10 years on drive (est.) Resilience Resilience Only somewhat resilient about the same as a floppy Only somewhat resilient about the same as a floppy Capacity Capacity Up to 750 Meg Up to 750 Meg Transfer rates Transfer rates Up to 7.5 MB/sec Up to 7.5 MB/sec Reuse Reuse Yes, but may cause failure sooner Yes, but may cause failure sooner Portable Portable Yes Yes Con’s Con’s Susceptibility to EMI Susceptibility to EMI Yes Yes Ease of setup Ease of setup Setup requires special drivers, programs, and equipment Setup requires special drivers, programs, and equipment Cost Cost $9.00 per disk (for the amount of data could be considered expensive) $9.00 per disk (for the amount of data could be considered expensive)

7. USB Memory Stick Pro’s Pro’s Ease of use Ease of use Very easy to use – plug and play! Very easy to use – plug and play! Ease of setup Ease of setup In most cases requires no setup In most cases requires no setup Durability (MTBF) Durability (MTBF) Pretec --> MTBF 500,000 hours (powered on) Simpletech --> MTBF 1M+ hours SanDisk --> MTBF 3M+ hours BitMicro --> MTBF 2M+ hours = 228 years Pretec --> MTBF 500,000 hours (powered on) Simpletech --> MTBF 1M+ hours SanDisk --> MTBF 3M+ hours BitMicro --> MTBF 2M+ hours = 228 years Resilience Resilience Very Resilient Very Resilient Susceptibility to EMI Susceptibility to EMI No No Capacity Capacity Depends… up to 16 Gig now ($200.00) Depends… up to 16 Gig now ($200.00) Transfer rates Transfer rates 30 MB/sec 30 MB/sec Cost Cost Depends on size but use a “size to cost” ratio and it is fairly inexpensive Depends on size but use a “size to cost” ratio and it is fairly inexpensive Reuse Reuse Yes Yes Portable Portable Yes Yes Con’s Con’s Small capacity as compared to other media Small capacity as compared to other media Expensive for larger capacities or if you want to archive your backups Expensive for larger capacities or if you want to archive your backups Small… easily misplaced (put in the washer machine) Small… easily misplaced (put in the washer machine)

8. Backup Partition Pro’s Pro’s Ease of use Ease of use Yes, already in system, just requires creation Yes, already in system, just requires creation Ease of setup Ease of setup Pretty easy, built in software will allow for this. Pretty easy, built in software will allow for this. Durability (MTBF) Durability (MTBF) Depends of type of drive ATA, SCSI, SATA. One of western digitals… 5-year warranty and 1.2 million hours MTBF Depends of type of drive ATA, SCSI, SATA. One of western digitals… 5-year warranty and 1.2 million hours MTBF Resilience Resilience Fairly Resilient Fairly Resilient Susceptibility to EMI Susceptibility to EMI Yes, but not as susceptible as a floppy or zip disk Yes, but not as susceptible as a floppy or zip disk Capacity Capacity Very high now. Very high now. Transfer rates Transfer rates 100MB per second data transfer rate. 100MB per second data transfer rate. Cost Cost No additional cost involved – it’s a second partition! No additional cost involved – it’s a second partition! Reuse Reuse Yes Yes Con’s Con’s If device fails – separate partition doesn’t help If device fails – separate partition doesn’t help Portable Portable No No

9. External Hard Drive Pros Pros Ease of use Ease of use As easy as a flash drive As easy as a flash drive Ease of setup Ease of setup No special setup required most of the time No special setup required most of the time Durability (MTBF) Durability (MTBF) Same as an internal hard drive (5 years) Same as an internal hard drive (5 years) Resilience Resilience Fairly resilient Fairly resilient Susceptibility to EMI Susceptibility to EMI Yes, but not as much as other media Yes, but not as much as other media Capacity Capacity Very high now Very high now Transfer rates Transfer rates 100MB per second data transfer rate. 100MB per second data transfer rate. Cost Cost Depends on size and where you buy – can be costly (250 GB HD $99.00) Depends on size and where you buy – can be costly (250 GB HD $99.00) Reuse Reuse Yes Yes Portability Portability Yes Yes Cons Cons Can be damaged if dropped or mishandled Can be damaged if dropped or mishandled Are somewhat vulnerable to EMI Are somewhat vulnerable to EMI Could be considered expensive if used to archive files Could be considered expensive if used to archive files

10. Tape Pro’s Pro’s Ease of use Ease of use Not hard but not easy. Not hard but not easy. Ease of setup Ease of setup Requires special hardware and software. Requires special hardware and software. Durability (MTBF) Durability (MTBF) a Travan tape drive has a MTBF of 370000 hours = 45 years a Travan tape drive has a MTBF of 370000 hours = 45 years Resilience Resilience Worse than a disk, a tape is very mechanical. Worse than a disk, a tape is very mechanical. Capacity Capacity Huge - 320GB Compressed Data Capacity Huge - 320GB Compressed Data Capacity Transfer rates Transfer rates I’ve seen anywhere from 2 – 40 MBps I’ve seen anywhere from 2 – 40 MBps Reuse Reuse Yes, but I get worried about using them over and over again. Yes, but I get worried about using them over and over again. Portability Portability Yes Yes Con’s Con’s Durability (MTBF) Durability (MTBF) The tapes themselves are not as durable as other media The tapes themselves are not as durable as other media Susceptibility to EMI Susceptibility to EMI Yes Yes Transfer rates Transfer rates I’ve seen anywhere from 2 – 40 MBps I’ve seen anywhere from 2 – 40 MBps Cost Cost (3) 20/40 GB Tapes $140.00 (3) 20/40 GB Tapes $140.00

11. CD-R / CD-RW Pros Pros Ease of use Ease of use Fairly easy – especially now that software is built into Windows Fairly easy – especially now that software is built into Windows Ease of setup Ease of setup Most systems come with CDR/RW already installed. Most systems come with CDR/RW already installed. Durability (MTBF) Durability (MTBF) Plextor 60000hrs MTBF = 6 years Plextor 60000hrs MTBF = 6 years Susceptibility to EMI Susceptibility to EMI No No Capacity Capacity 700 MB 700 MB Transfer rates Transfer rates Mitsumi, Data Transfer Rate, 33.0 MB/s Mitsumi, Data Transfer Rate, 33.0 MB/s Cost Cost When purchased in bulk pennies per! When purchased in bulk pennies per! Reuse Reuse RW = yes, R = no Portability Portability Yes Yes Cons Cons Resilience Resilience Not very Resilient – dropped / scratched / heat warped Not very Resilient – dropped / scratched / heat warped Reuse Reuse RW = yes, R = no

12. DVD Pros Pros Ease of use Ease of use Not much different than CD-R Not much different than CD-R Ease of setup Ease of setup Not much different than CD-R Not much different than CD-R Durability (MTBF) Durability (MTBF) Plextor DVD MTBF 60 000h = 6 years Plextor DVD MTBF 60 000h = 6 years Susceptibility to EMI Susceptibility to EMI No No Capacity Capacity Typically 4-8 GB, However Nanotech to increase DVD capacity to 850 GByte Typically 4-8 GB, However Nanotech to increase DVD capacity to 850 GByte Transfer rates Transfer rates 8X DVD drive can transfer data at a whopping 11.08MB 8X DVD drive can transfer data at a whopping 11.08MB Cost Cost Anywhere from.30 to $1.45 Anywhere from.30 to $1.45 Reuse Reuse DVD-RW = Yes, DVD-R = No DVD-RW = Yes, DVD-R = No Portability Portability Yes Yes Cons Cons Resilience Resilience Not very Resilient – dropped / scratched / heat warped Not very Resilient – dropped / scratched / heat warped Reuse Reuse DVD-RW = Yes, DVD-R = No DVD-RW = Yes, DVD-R = No

13. Web Links http://www.webopedia.com/TERM/R/RAID.html http://www.webopedia.com/TERM/R/RAID.html http://www.webopedia.com/TERM/R/RAID.html http://www.sata-io.org/esata.asp http://www.sata-io.org/esata.asp http://www.sata-io.org/esata.asp http://www.pc4usa.com/DetailSales.asp?productID=1214&parCat=&Sca tn=29&Catn=6 http://www.pc4usa.com/DetailSales.asp?productID=1214&parCat=&Sca tn=29&Catn=6 http://www.pc4usa.com/DetailSales.asp?productID=1214&parCat=&Sca tn=29&Catn=6 http://www.pc4usa.com/DetailSales.asp?productID=1214&parCat=&Sca tn=29&Catn=6 http://electronics.howstuffworks.com/dvd3.htm http://electronics.howstuffworks.com/dvd3.htm http://electronics.howstuffworks.com/dvd3.htm http://www.theeldergeek.com/hard_drives_10.htm http://www.theeldergeek.com/hard_drives_10.htm http://www.theeldergeek.com/hard_drives_10.htm