Data Storage andData Storage andBackup StrategiesBackup Strategies

Joe CiceroJoe CiceroRevised by Jeanne ConlonRevised by Jeanne Conlon

Northeast Wisconsin Technical Northeast Wisconsin Technical CollegeCollege

This Presentation Will Cover…This Presentation Will Cover…

Hard Copy - paperHard Copy - paper FloppyFloppy Zip DiskZip Disk USB Memory Stick / Flash MemoryUSB Memory Stick / Flash Memory Backup PartitionBackup Partition External / 2External / 2ndnd Hard Drive – usb / 1394 etc Hard Drive – usb / 1394 etc TapeTape CD-R / CD-RWCD-R / CD-RW DVD-R / DVD-RWDVD-R / DVD-RW

Data Storage / Backup Media…Data Storage / Backup Media…Things to considerThings to consider

Ease of useEase of use Ease of setupEase 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. ResilienceResilience

Resilience generally means the ability to recover from some shock, or Resilience generally means the ability to recover from some shock, or disturbance. disturbance.

Susceptibility to EMISusceptibility to EMI Electromagnetic Interference. A naturally occurring phenomena when the Electromagnetic Interference. A naturally occurring phenomena when the

electromagnetic field of one device disrupts, impedes or degrades the electromagnetic field of one device disrupts, impedes or degrades the electromagnetic field of another device by coming into proximity with it. electromagnetic field of another device by coming into proximity with it.

CapacityCapacity 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 ratesTransfer rates The rate at which data can be transferred, The rate at which data can be transferred,

CostCost ReuseReuse PortabilityPortability

Hard Copy - PaperHard Copy - Paper Pro’sPro’s

Ease of useEase of use Easy to print thingsEasy to print things

Ease of setupEase of setup Easy to setup a printerEasy to setup a printer

Durability (MTBF)Durability (MTBF) Fire / Water but other media will have a problem with this alsoFire / Water but other media will have a problem with this also

ResilienceResilience Dependent upon type of paper and inkDependent upon type of paper and ink

Susceptibility to EMISusceptibility to EMI NoNo

Con’sCon’s Ease of useEase of use

It is not electronically searchable!It is not electronically searchable! CapacityCapacity

How much paper do you have?How much paper do you have? Transfer ratesTransfer rates

Slow, print everything?Slow, print everything? CostCost

Costly – paper, ink/toner, storage costs!Costly – paper, ink/toner, storage costs! ReuseReuse

Not really reusable – maybe 1 time (back of sheet)Not really reusable – maybe 1 time (back of sheet) PortabilityPortability

Small amounts may be portable but not large boxes of paper backups!Small amounts may be portable but not large boxes of paper backups!

FloppyFloppy Pro’sPro’s

Ease of useEase of use Pretty easy to use (if your system has one)Pretty easy to use (if your system has one)

Ease of setupEase of setup Requires little or no setup.Requires little or no setup.

Durability (MTBF)Durability (MTBF) Drive has 30000 power on hours / 3.2 yearsDrive has 30000 power on hours / 3.2 years

Re-usableRe-usable Yes, but may cause failure soonerYes, but may cause failure sooner

PortablePortable Yes, but not if you have large amounts of dataYes, but not if you have large amounts of data

Con’sCon’s Durability (MTBF)Durability (MTBF)

Floppies fail oftenFloppies fail often ResilienceResilience

Only somewhat resilientOnly somewhat resilient Susceptibility to EMISusceptibility to EMI

YesYes CapacityCapacity

Very small capacity 1.4 megVery small capacity 1.4 meg Transfer ratesTransfer rates

Slow - Slow - 500/300/250 kByte/s 500/300/250 kByte/s CostCost

Would require many floppies, storage costs, etc.Would require many floppies, storage costs, etc.

Zip DisksZip Disks Pro’sPro’s

Ease of useEase 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.)

ResilienceResilience Only somewhat resilient about the same as a floppyOnly somewhat resilient about the same as a floppy

CapacityCapacity Up to 750 MegUp to 750 Meg

Transfer ratesTransfer rates Up to Up to 7.5 MB/sec 7.5 MB/sec

ReuseReuse Yes, but may cause failure soonerYes, but may cause failure sooner

PortablePortable YesYes

Con’sCon’s Susceptibility to EMISusceptibility to EMI

YesYes Ease of setupEase of setup

Setup requires special drivers, programs, and equipmentSetup requires special drivers, programs, and equipment CostCost

$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)

USB Memory StickUSB Memory Stick Pro’sPro’s

Ease of useEase of use Very easy to use – plug and play!Very easy to use – plug and play!

Ease of setupEase of setup In most cases requires no setupIn most cases requires no setup

Durability (MTBF)Durability (MTBF) Pretec --> MTBF 500,000 hours (powered on)Pretec --> MTBF 500,000 hours (powered on)

Simpletech --> MTBF 1M+ hoursSimpletech --> MTBF 1M+ hoursSanDisk --> MTBF 3M+ hoursSanDisk --> MTBF 3M+ hoursBitMicro --> MTBF 2M+ hours = 228 yearsBitMicro --> MTBF 2M+ hours = 228 years

ResilienceResilience Very ResilientVery Resilient

Susceptibility to EMISusceptibility to EMI NoNo

CapacityCapacity Depends… up to 16 Gig now ($200.00)Depends… up to 16 Gig now ($200.00)

Transfer ratesTransfer rates 30 MB/sec 30 MB/sec

CostCost Depends on size but use a “size to cost” ratio and it is fairly inexpensiveDepends on size but use a “size to cost” ratio and it is fairly inexpensive

ReuseReuse YesYes

PortablePortable YesYes

Con’sCon’s Small capacity as compared to other mediaSmall capacity as compared to other media Expensive for larger capacities or if you want to archive your backupsExpensive 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)

Backup PartitionBackup Partition Pro’sPro’s

Ease of useEase of use Yes, already in system, just requires creationYes, already in system, just requires creation

Ease of setupEase 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… Depends of type of drive ATA, SCSI, SATA. One of western digitals… 5-year warranty and 1.2 million hours 5-year warranty and 1.2 million hours

MTBFMTBF ResilienceResilience

Fairly ResilientFairly Resilient Susceptibility to EMISusceptibility to EMI

Yes, but not as susceptible as a floppy or zip diskYes, but not as susceptible as a floppy or zip disk CapacityCapacity

Very high now.Very high now. Transfer ratesTransfer rates

100MB per second data 100MB per second data transfer ratetransfer rate. . CostCost

No additional cost involved – it’s a second partition!No additional cost involved – it’s a second partition! ReuseReuse

YesYes Con’sCon’s

If device fails – separate partition doesn’t helpIf device fails – separate partition doesn’t help PortablePortable

NoNo

External Hard DriveExternal Hard Drive ProsPros

Ease of useEase of use As easy as a flash driveAs easy as a flash drive

Ease of setupEase of setup No special setup required most of the timeNo 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)

ResilienceResilience Fairly resilientFairly resilient

Susceptibility to EMISusceptibility to EMI Yes, but not as much as other mediaYes, but not as much as other media

CapacityCapacity Very high nowVery high now

Transfer ratesTransfer rates 100MB per second data 100MB per second data transfer ratetransfer rate. .

CostCost 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)

ReuseReuse YesYes

PortabilityPortability YesYes

ConsCons Can be damaged if dropped or mishandledCan be damaged if dropped or mishandled Are somewhat vulnerable to EMI Are somewhat vulnerable to EMI Could be considered expensive if used to archive filesCould be considered expensive if used to archive files

TapeTape Pro’sPro’s

Ease of useEase of use Not hard but not easy.Not hard but not easy.

Ease of setupEase of setup Requires special hardware and software.Requires special hardware and software.

Durability (MTBF)Durability (MTBF) a Travan a Travan tape drivetape drive has a has a MTBFMTBF of 370000 hours = 45 years of 370000 hours = 45 years

ResilienceResilience Worse than a disk, a tape is very mechanical. Worse than a disk, a tape is very mechanical.

CapacityCapacity Huge - Huge - 320GB Compressed Data 320GB Compressed Data CapacityCapacity

Transfer ratesTransfer rates I’ve seen anywhere from 2 – 40 MBpsI’ve seen anywhere from 2 – 40 MBps

ReuseReuse Yes, but I get worried about using them over and over again.Yes, but I get worried about using them over and over again.

PortabilityPortability YesYes

Con’sCon’s Durability (MTBF)Durability (MTBF)

The tapes themselves are not as durable as other mediaThe tapes themselves are not as durable as other media Susceptibility to EMISusceptibility to EMI

YesYes Transfer ratesTransfer rates

I’ve seen anywhere from 2 – 40 MBpsI’ve seen anywhere from 2 – 40 MBps CostCost

(3) 20/40 GB Tapes $140.00(3) 20/40 GB Tapes $140.00

CD-R / CD-RWCD-R / CD-RW ProsPros

Ease of useEase of use Fairly easy – especially now that software is built into WindowsFairly easy – especially now that software is built into Windows

Ease of setupEase of setup Most systems come with CDR/RW already installed.Most systems come with CDR/RW already installed.

Durability (MTBF)Durability (MTBF) Plextor Plextor 60000hrs 60000hrs MTBFMTBF = 6 years = 6 years

Susceptibility to EMISusceptibility to EMI NoNo

CapacityCapacity 700 MB700 MB

Transfer ratesTransfer rates Mitsumi, Mitsumi, Data Data Transfer RateTransfer Rate, 33.0 MB/s , 33.0 MB/s

CostCost When purchased in bulk pennies per!When purchased in bulk pennies per!

ReuseReuseRW = yes, R = noRW = yes, R = no

PortabilityPortability YesYes

ConsCons ResilienceResilience

Not very Resilient – dropped / scratched / heat warpedNot very Resilient – dropped / scratched / heat warped ReuseReuse

RW = yes, R = noRW = yes, R = no

DVDDVD ProsPros

Ease of useEase of use Not much different than CD-RNot much different than CD-R

Ease of setupEase of setup Not much different than CD-RNot much different than CD-R

Durability (MTBF)Durability (MTBF) Plextor Plextor DVDDVD MTBFMTBF 60 000h = 6 years 60 000h = 6 years

Susceptibility to EMISusceptibility to EMI NoNo

CapacityCapacity Typically 4-8 GB, However Typically 4-8 GB, However Nanotech to increase Nanotech to increase DVD capacityDVD capacity to 850 GByte to 850 GByte

Transfer ratesTransfer rates 8X 8X DVDDVD drive can drive can transfertransfer data at a whopping 11.08MB data at a whopping 11.08MB

CostCost Anywhere from .30 to $1.45Anywhere from .30 to $1.45

ReuseReuse DVD-RW = Yes, DVD-R = NoDVD-RW = Yes, DVD-R = No

PortabilityPortability YesYes

ConsCons ResilienceResilience

Not very Resilient – dropped / scratched / heat warpedNot very Resilient – dropped / scratched / heat warped ReuseReuse

DVD-RW = Yes, DVD-R = NoDVD-RW = Yes, DVD-R = No

Web LinksWeb Links

http://www.webopedia.com/TERM/R/RAID.hthttp://www.webopedia.com/TERM/R/RAID.htmlml

http://www.sata-io.org/esata.asphttp://www.sata-io.org/esata.asp http://www.pc4usa.com/DetailSales.asp?http://www.pc4usa.com/DetailSales.asp?

productID=1214&parCat=&Scatn=29&Catn=6productID=1214&parCat=&Scatn=29&Catn=6

http://electronics.howstuffworks.com/http://electronics.howstuffworks.com/dvd3.htmdvd3.htm

http://www.theeldergeek.com/hard_drives_10http://www.theeldergeek.com/hard_drives_10.htm.htm