DMG Analyst Paper: The Hot New Storage Technology for 2011 is… Tape?

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DMG Analyst Paper: The Hot New Storage Technology for 2011 is… Tape?

  1. 1. Data Walt  Purvis Mobility Group March  1,  2011Research Note The  hot  new  storage  technology   for  2011  is…  tape? For  more  than  a  decade  vendors  with  only  disk-­based  storage  systems   obsolete.  Despite  the  marketing  efforts  of  disk-­only  vendors,  tape   continues  to  play  a  vital  role  in  most  data  centers  and  Data  Mobility   Group  believes  tape  will  become  even  more  important  in  the  years   ahead.  Factors  underlying  this  belief  include: Advances  in  tape  technology  that  increase  performance,  capacity,   and  reliability. tape. increasingly  turn  to  tape-­based  storage,  especially  for  archiving. Copyright  ©  2002-­2011  Data  Mobility  Group,  LLC.  All  Rights  Reserved.   Reproduction  and  distribution  of  this  publication  without  prior  written  permission  is  forbidden.  Organizations  interested  in  obtain-­ ing  distribution  rights  for  this  report  must  contact  Joseph  Martins,  Managing  Director  of  Data  Mobility  Group.  Data  Mobility  Group   believes  the  statements  contained  herein  are  based  on  accurate  and  reliable  information.  However,  because  information  is  provided   to  Data  Mobility  Group  from  various  sources,  we  cannot  warrant  that  this  publication  is  complete  and  error-­free.  Data  Mobility   herein  are  subject  to  change  without  notice.   datamobilitygroup.com 63  Jennison  Rd,  Milford,  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com
  2. 2. Data Mobility Groupwww.datamobilitygroup.com Storage  trends  &  the  advantages  of  tape 1.   Rampant  growth  in  the  volume  of  data.  Enterprises  generate  mind-­boggling  amounts  of  data.   ever  before  for  science,  engineering,  business  analytics,  healthcare,  security,  government,  and  so  on. 2.   Increased  data  retention  periods.  A  number  of  regulations  mandate  that  data  be  kept  on  hand   for  years  or  even  decades.  In  addition,  enterprises  are  holding  onto  more  and  more  data  just   because  it  might  have  value  someday:  transactional  business  data  that  could  possibly  yield   valuable  information  with  the  right  analytics  applied;;  old  video  that  could  be  repackaged  or   3.   Prioritization  of  cost-­containment.  Storage  budgets  are  under  pressure.  A  skeptical  eye  is  cast  at   Anyone  who  works  in  storage  is  painfully  aware  of  these  trends,  but  few  storage  professionals   seem  to  recognize  how  perfectly  the  above  trends  match  up  with  the  strengths  and  advantages  of   tape-­based  storage: 1.   simple  as  purchasing  additional  cartridges. 2.   cartridges  can  be  easily  copied  and  stored  off-­site  for  guaranteed  redundancy  and  cost-­effective   disaster  recovery  protection. arrays,  and  with  a  proper  archiving  strategy  most  data  could  be  stored  on  tape  rather  than  on   ©  2002-­2011  Data  Mobility  Group.  Address:  63  Jennison  Road,  Milford  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com
  3. 3. Data Mobility Groupwww.datamobilitygroup.com Advances  in  tape  technology Reliability.  New  materials  and  drives  combined  with  error  correction  and  read-­after-­ tape  libraries  automatically  monitor  the  status  and  health  of  cartridges,  drives,  and  other   components,  proactively  alerting  administrators  to  potential  problems.  People  with  no-­so-­fond   reliable  than  disk. Capacity  and  throughput.   Encryption  and  WORM.   encryption  for  all  generations  moving  forward,  which  keeps  data  secure  by  rendering  lost  or   features  help  organizations  meet  information  governance,  risk,  and  compliance  standards. Linear  Tape  File  System LTFS). ©  2002-­2011  Data  Mobility  Group.  Address:  63  Jennison  Road,  Milford  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com
  4. 4. Data Mobility Groupwww.datamobilitygroup.com Value-­added  solutions nightmare  into  a  manageable  undertaking  and  sharply  lowers  the  cost. feature  that  checks  to  make  sure  all  tape  media  is  fully  readable. stored  on  disk  arrays  while  others  are  on  tape.  Data  can  be  transparently  migrated  between   disk,  tape,  and  other  storage  mediums,  based  on  policies.  Products  in  this  category  include:   Software  and  Dataglobal. consider  presently. ©  2002-­2011  Data  Mobility  Group.  Address:  63  Jennison  Road,  Milford  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com
  5. 5. Data Mobility Groupwww.datamobilitygroup.com Implementing  an  active  archive  strategy  based  on  tape paperwork  go  to  die.  In  the  storage  world,  it  has  often  meant  tape  cartridges  sent  off  to  a  warehouse,   probably  never  to  be  accessed  again.  All  too  often  these  tapes  just  hold  really  old  backups.  Keeping   old  backups  is  not  the  same  thing  as  having  an  archive.  In  fact,  having  really  old  backups  around  is   more  of  a  problem  than  a  solution. can  be  a  bit  confusing  because  the  data  in  the  archive  tier  of  an  active  archive  is  actually  inactive   retrieved  when  needed,  either  directly  from  tape  or  copied  to  primary  disk  storage. enables  an  organization  to  respond  to  new  business  opportunities,  e-­discovery  or  litigation  support   requests,  compliance  audits,  customer  inquiries,  etc. Greatly  reduced  power  and  cooling  costs. Lowest  total  cost  of  ownership,  by  a  considerable  margin. Longevity  and  reliability. Can  clone  some  or  all  archive  data  and  store  cartridges  off-­site. Less  data  on  disk  reduces  disk  backup  times. ©  2002-­2011  Data  Mobility  Group.  Address:  63  Jennison  Road,  Milford  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com
  6. 6. Data Mobility Groupwww.datamobilitygroup.com or  as  widely  available  as  they  are  today. tape  technology  has  improved  dramatically,  and  given  the  acknowledged  advantages  of  tape,  we  think   Continuous  data  growth  as  well  as  data  center  energy  costs  and  limitations  has  made  it  ever  more   untenable  to  keep  inactive  data  on  primary  disk,  but  for  various  reasons  even  inactive  data  must   remain  accessible.  An  active  archive  infrastructure  is  now  an  absolute  necessity  for  many  enterprises.   DMG  recommends  that  enterprises  seriously  consider  using  tape  in  their  archive  tier. Tape’s  role  in  backup  &  disaster  recovery For  short-­term  primary  backups,  tape  remains  a  good  choice  for  some  applications,  but  in  most   environments  disk  has  become  the  preferred  medium  due  to  its  ease  of  use  and  quick  restores.  On  the   off-­site  tape  backups  in  a  disk-­to-­disk-­to-­tape  approach. Using  tape  for  primary  storage ©  2002-­2011  Data  Mobility  Group.  Address:  63  Jennison  Road,  Milford  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com
  7. 7. Data Mobility Groupwww.datamobilitygroup.com new  data,  but  the  vast  majority  of  their  data  resides  on  tape  and  is  accessed  directly  from  tape  whenever   compensate  for  the  slight  access  delay. met  by  using  tape  as  a  primary  storage  platform. Summing  Up environment,  tape  can  be  an  optimal  choice  for  backup,  disaster  recovery,  archiving,  or  even  primary   line  copy  of  invaluable  data  are  too  great  to  ignore.  DMG  encourages  all  organizations  to  take  a  fresh   look  at  tape. ©  2002-­2011  Data  Mobility  Group.  Address:  63  Jennison  Road,  Milford  NH  03055    Phone:  603.574.4764    Email:  jmartins@datamobilitygroup.com

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