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Silverton Consulting: A Review of HUS and HNAS Platform Analyst Report
 

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Hitachi Unified Storage (HUS) and Hitachi NAS Platform(HNAS) have been enhanced with the newly introduced 4060, 4080 and 4100 file sharing models. These new file modules provide significantly more ...

Hitachi Unified Storage (HUS) and Hitachi NAS Platform(HNAS) have been enhanced with the newly introduced 4060, 4080 and 4100 file sharing models. These new file modules provide significantly more file IOPS and throughput performance. They also offer improved front--‐end server and faster back--‐end storage connectivity, as well as expanded scalability through a larger single namespace. Primary data deduplication is the major new feature that helps achieve higher utilization and cost savings through capacity efficiencies. This increase in performance, scalability and capacity efficiency helps IT departments to accelerate insight, improve decision--‐making and free up resources.

For more information on HUS and HNAS Platform please visit: http://www.hds.com/products/file-and-content/network-attached-storage/?WT.ac=us_mg_pro_hnasp

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    Silverton Consulting: A Review of HUS and HNAS Platform Analyst Report Silverton Consulting: A Review of HUS and HNAS Platform Analyst Report Document Transcript

    •   Silverton Consulting, Inc. StorInt™ Briefing       SCI Briefing: A Review of the New Hitachi Unified Storage and Hitachi NAS Platform 4000 Series               Written by: Ray Lucchesi, President and Founder Published: July, 2013  
    • REVIEW  OF  HUS  &  HNAS  PLATFORM  4000  FAMILIES   PAGE  1  OF  6     TWITTER.COM/RAYLUCCHESI | RAYONSTORAGE.COM | +1-720-221-7270 | SILVERTONCONSULTING.COM © 2013 SILVERTON CONSULTING, INC. ALL RIGHTS RESERVED Executive Summary Hitachi  Unified  Storage  (HUS)  and  Hitachi  NAS  Platform(HNAS)  have  been  enhanced  with   the  newly  introduced  4060,  4080  and  4100  file  sharing  models.  These  new  file  modules   provide  significantly  more  file  IOPS  and  throughput  performance.  They  also  offer  improved   front-­‐end  server  and  faster  back-­‐end  storage  connectivity,  as  well  as  expanded  scalability   through  a  larger  single  namespace.  Primary  data  deduplication  is  the  major  new  feature   that  helps  achieve  higher  utilization  and  cost  savings  through  capacity  efficiencies.  This   increase  in  performance,  scalability  and  capacity  efficiency  helps  IT  departments  to   accelerate  insight,  improve  decision-­‐making  and  free  up  resources.   Introduction In  today’s  data  center,  file  data  is  growing  at  exponential  rates  with  no  end  in  sight.  We  are   all  generating  more  data—almost  2.5EB  a  day—most  of  which  is  in  the  form  of  file   information.  To  provide  better  insight,  smart  businesses  are  capturing  information  on   customer  interactions  everywhere  they  can,  and  their  employees  are  creating  and  sharing   more  information  than  ever  before.  Data  centers  are  struggling,  especially  since  the   traditional  storage  and  systems  used  to  manage  this  avalanche  of  file  data  are  insufficient  to   the  task.   HUS and HNAS 4000 Series Hitachi  Data  Systems  (HDS)  has  recently  introduced  three  new  file-­‐sharing  models  called   Hitachi  NAS  Platform  4060,  4080  and  4100.  These  models  improve  performance,  enhance   configuration  flexibility  and  increase  name  space  scalability.  These  improvements,  together   with  the  increased  capacity  effectiveness  available   from  deduplication,  help  customers  store  more  file   data  with  fewer  storage  systems  and,  as  such,  reduce   the  operational  burden  for  managing  enterprise  file   storage.     HDS  offers  their  new  file  modules  in  HNAS  file  service   gateways  that  use  SAN-­‐attached  storage,  as  well  as   HUS  configurations  that  support  both  file  and  block   data  in  a  single  system.  In  both  solutions,  the  new  file   modules  supply  the  same  advanced  functionality  available  from  Hitachi’s  current  HNAS   3080  and  3090  file  sharing  models.  However,  the  new  file  modules  perform  better.       The  new  file  modules  have  undergone  a  number  of  industry-­‐standard  benchmark  tests  to   obtain  more  information  on  their  performance.  In  a  subsequent  section  of  this  paper,  we   discuss  one  series  of  benchmark  results  that  compares  the  previous  generation  of  file   modules  with  the  new  file  modules  in  HUS  configurations.   Enterprise File Challenges Today Managing  increasing  amounts  of  file  data  is  challenging  because  traditional  file  storage   suffers  from  limitations  of  scale  at  the  directory,  file  system  and  name  space  level.  When   dealing  with  explosive  file  growth,  scalability  constraints  like  these  can  cause  IT  significant   problems.       For  example,  sooner  or  later  corporate  file  data  expands  beyond  set  limits,  and  then  the   data  must  be  divided  across  multiple  directories,  file  systems  or  name  spaces.  At  that  point,   operators  must  find  or  configure  more  storage,  move  file  data  to  the  new  storage  and   update  hundreds,  if  not  thousands,  of  end  users  or  applications  to  point  to  the  new  location.  
    • REVIEW  OF  HUS  &  HNAS  PLATFORM  4000  FAMILIES   PAGE  2  OF  6     TWITTER.COM/RAYLUCCHESI | RAYONSTORAGE.COM | +1-720-221-7270 | SILVERTONCONSULTING.COM © 2013 SILVERTON CONSULTING, INC. ALL RIGHTS RESERVED Much  of  this  administrative  work  can  be  automated,  but  splitting  up  file  data  makes  files   harder  to  find,  protect  and  manage.     With  the  increased  use  of  big  data  analytics,  the  value  of  file  data  is  increasing  in  the   enterprise,  and  more  business-­‐critical  applications  are  starting  to  use  files  rather  than  block   storage.  As  file  data  becomes  more  mission-­‐critical,  file  performance  tuning  becomes  yet   another  reason  to  move  file  data.  It’s  one  thing  when  a  few  users  complain  about  slow   access  to  file  data,  but  it’s  something  else  entirely  when  crucial  applications  wait  on  file   data.     With  these  thoughts  in  mind,  it’s  no  wonder  that  the  time  to  store,  tune  and  protect  file  data   is  starting  to  reach  troubling  levels.  But  even  without  the  above  system  constraints,   managing  file  information  is  becoming  a  more  significant  burden  to  IT  staff  given  the   expansion  of  corporate  file  data.   Hitachi 4000 Series of File-Sharing Systems Enhancements HDS  supports  the  new  Hitachi  NAS  Platform  4060,  4080  and  4100  as  standalone  gateway   configurations  or  as  file  modules  in  HUS  110,  HUS  130,  HUS  150  and  Hitachi  Unified  Storage   VM  storage  systems.  All  of  the  new  file  modules  offer  the  following  hardware   enhancements:     • Next-­‐generation  FPGA  that  has  faster  hardware  and  more  electronics,  which  can   help  sustain  much  faster  file  I/O  performance.  Hitachi’s  use  of  FPGA  hardware   acceleration  has  always  been  the  hallmark  of  its  superior  file  I/O  performance.     • New  Intel  Xeon  processors  that  have  more  CPU  cores,  more  local  memory  and   faster  instruction  execution  to  help  speed  up  the  file  software  stack  and  increase  the   number  of  simultaneous  I/O  operations  that  can  execute  in  parallel.     • Larger  memory  cache  to   help  generate  more  cache  hits,   resulting  in  faster  file  I/O  because   data  is  coming  out  of  memory  rather   than  backend  storage.  Both  NAS   Platform  4060  and  4080  now   support  46GB  of  cache  per  node,  and   the  4100  offers  108GB  of  cache  per   node.       • Faster  file  sharing  10GbE  frontend  ports,  which  speed  up  server  data  transfers   and  provide  more  file  data  throughput.  The  new  systems  can  be  configured  with  up   to  4-­‐10GbE  links  for  server  networks,  and  they  also  continue  to  support  2-­‐10GbE   links  for  inter-­‐cluster  communications.     • Higher-­‐speed  8Gbps  backend  fibre  channel  ports  for  faster  storage  to  file   module  data  transfers,  leading  to  better  performance  for  data  coming  off  of  backend   storage.  The  system  can  be  configured  with  up  to  4-­‐8Gbps  FC  links.     Furthermore,  the  NAS  Platform  4060  can  be  configured  with  up  to  two  nodes  per  cluster,   and  the  4080  and  the  4100  can  be  configured  with  up  to  four  nodes  per  cluster.      
    • REVIEW  OF  HUS  &  HNAS  PLATFORM  4000  FAMILIES   PAGE  3  OF  6     TWITTER.COM/RAYLUCCHESI | RAYONSTORAGE.COM | +1-720-221-7270 | SILVERTONCONSULTING.COM © 2013 SILVERTON CONSULTING, INC. ALL RIGHTS RESERVED Hitachi File Module Software Enhancements The  new  file  modules  add  to  the  already  impressive  file  storage  functionality  present  in  the   previously  available  NAS  Platform  3080  and  3090  file  modules.  Earlier  this  year,  HDS   introduced  primary  storage  deduplication  for  file  data.  Primary  storage  deduplication   eliminates  data  redundancy  across  files,  which  reduces  the  storage  needed  to  save  file  data   and  increases  the  capacity  efficiency  and  effectiveness  of  their  file  sharing  modules.       Most  file  storage  or  NAS  systems  that  offer  data  deduplication  perform  the  compute-­‐ intensive  portion  of  deduplication  processing  using  software  that  can  materially  reduce  file   I/O  performance,  especially  when  files  are  being  created.  In  contrast,  Hitachi’s  new   deduplication  functionality  uses  FPGA  hardware  acceleration  to  perform  most  of  the   compute-­‐intensive  work  required  to  eliminate  redundant  data  and,  as  such,  has  a  minimal   impact  on  file  creation  performance.       Hitachi  deduplication  can  be  enabled/disabled  at  a  file  system  level.  The  base  license  comes   with  one  deduplication  engine  and  is  available  for  free.  Additional  deduplication  engines   can  be  purchased  if  needed.     In  addition,  the  new  NAS  Platform  4080  and  4100  file  modules  also  offer  a  larger  single   name  space  that  now  supports  up  to  16PB  of  file  data.  The  4060  file  module  supports  up  to   an  8PB  single  name  space.  All  current  and  new  file  modules  support  up  to  a  256TB  file   system  pool  size.   As  shown  in  Table  1,  the  new  file  modules  offer  more  file  throughput  and  more  cache.  For   NAS  Platform  4080  and  4100,  they  also  offer  substantially  more  scalability  and  performance   per  node.  We  discuss  these  performance  advantages  more  fully  later  in  this  paper.  Some   reasons  to  continue  using  the  NAS  Platform  3080  and  3090  are  1GbE  support  and  the  ability   to  add  a  performance  acceleration  option  (3090  only)  to  boost  performance  beyond  base   configurations.  A  few  reasons  to  consider  using  the  new  4000  series  include  better  frontend   and  backend  throughput,  more  simultaneous  open  files  and  more  cache  memory.   Advantages  for  the  4080  and  4100  also  include  more  IOPS,  higher  throughput  and  larger   name  space.       HUS  &   HNAS  3080   HUS  &   HNAS  3090   HUS  &  HNAS   4060   HUS  &  HNAS   4080   HUS  &  HNAS   4100   IOPS  per   node1   40,000   72,000   70,000   105,000   140,000   Throughput   per  node   700MB/sec.   1,100MB/se c.   1,000MB/sec.   1,500MB/sec.   2,000MB/sec.   Performance   Acceleration   N/A   Yes   N/A   N/A   N/A   Scalability2   4PB   8PB   8PB   16PB   16PB   File  sharing   ports/node   2-­‐10GbE  and   6-­‐1GbE   2-­‐10GbE  and   6-­‐1GbE   4-­‐10GbE   4-­‐10GbE   4-­‐10GbE                                                                                                                             1  Performance  results  from  SPECsfs_2008  NFSv3  data.   2  Single  name  space  maximum  capacity.  
    • REVIEW  OF  HUS  &  HNAS  PLATFORM  4000  FAMILIES   PAGE  4  OF  6     TWITTER.COM/RAYLUCCHESI | RAYONSTORAGE.COM | +1-720-221-7270 | SILVERTONCONSULTING.COM © 2013 SILVERTON CONSULTING, INC. ALL RIGHTS RESERVED Backend   ports/node   4-­‐4,  2,  or  1   Gbps   4-­‐4,  2,  or  1   Gbps   4-­‐8,  4,  or  2   Gbps   4-­‐8,  4,  or  2   Gbps   4-­‐8,  4,  or  2   Gbps   Cache/node   32GB   32GB   46GB   46GB   108GB   Max  nodes   per  cluster   2   4   2   4   4   Table  1  Summary  Hitachi  NAS  Platform  Technical  Specifications       HUS 100 Series and HUS VM Block Storage Enhancements The  HDS  block  storage  modules  present  in  HUS  configurations  have  recently  been   enhanced.  For  instance,  the  Hitachi  Accelerated  Flash  (HAF)  array  with  new  Flash  Module   Drive  (FMD),  previously  available  only  on  Hitachi  Virtual  Storage  Platform  (VSP),  is  now   offered  on  HUS  VM.  The  FMD  is  a  proprietary,  Hitachi-­‐designed  flash  storage  device  that   offers  more  capacity,  better  read  performance  and  higher  write  performance,  as  well  as   higher  endurance  than  traditional  SSD  or  flash  storage.  All  of  these  capabilities  will  increase   HUS  VM  file  data  access  speed.     Moreover,  HDS  has  eliminated  all  prior  limits  on  the  number  of  FMDs  or  SSDs  that  could  be   used  in  HUS  storage  systems;  as  a  result,  HUS  storage  all-­‐flash  array  options  are  now   available  for  customers  that  need  even  higher  performance.       HDS  now  also  supports  an  all-­‐DC  power  option  for  HUS  storage.  This  option  adds   deployment  flexibility  and  will  simplify  installation  for  many  customer  environments  that   don’t  have  AC  power  or  don’t  want  to  use  it.     HDS  block  storage  module  software  functionality  has  also  been  enhanced.  Specifically,       • Hitachi  Dynamic  Tiering  (HDT)  can  now  use  external  capacity  as  a  separate,   distinct  storage  tier.  For  example,  an  external,  all-­‐flash  storage  array  can  now  be   used  for  HDT’s  top  data  storage  tier.     • HDT  now  enables  data  volumes  to  be  locked  to  a  single  tier  such  as  flash   storage  until  they  no  longer  need  high  levels  of  performance.     • HUS  block  storage  now  offers  data-­‐at-­‐rest  encryption  for  secure  data  storage.   HUS  block  storage  controllers  encrypt/decrypt  data  as  it  is  written/read  back  from   backend  storage.       File Sharing Roadmap HDS  has  announced  a  statement  of  direction  for  its  future  file  sharing  model  hardware  and   software  functionality  that  includes  the  following:     • 32PB  single  name  space,  which  doubles  the  current  single  name  space  capacity;     • 1PB  file  system,  which  quadruples  the  current  file  system  capacity;  and     • 8-­‐node  clusters,  which  double  the  current  4100-­‐cluster  configuration.    
    • REVIEW  OF  HUS  &  HNAS  PLATFORM  4000  FAMILIES   PAGE  5  OF  6     TWITTER.COM/RAYLUCCHESI | RAYONSTORAGE.COM | +1-720-221-7270 | SILVERTONCONSULTING.COM © 2013 SILVERTON CONSULTING, INC. ALL RIGHTS RESERVED New File Module Performance The  SPECsfs_2008  (Standard  Performance  Evaluation  Corporation  for  System  File  Services,   2008  version)  benchmark  suite  is  an  industry-­‐wide  performance  test  that  provides  a   standard  method  to  compare  file  I/O  performance  across  storage  systems  from  a  number  of   vendors.  SPECsfs2008  benchmark  runs  are  formally  documented,  independently  audited   and  available  for  viewing  on  their  website.3  SPECsfs2008  testing  is  designed  to  measure  file   system  performance  from  low  levels  all  the  way  up  to  peak  system  performance.  Although   SPECsfs2008  is  defined  for  NFSv3  and  CIFS/SMB1,  the  testing  discussed  below  is  based  on   NFSv3  results  only.     Figure  1  shows  both  published  SPECsfs2008  benchmark  results  (red  columns)  and   projected  results  (blue  columns).4  The  height  of  each  column  indicates  the  peak  NFS   throughput  operations  per  second  achievable  by  the  storage  system  under  SPECsfs2008   stress  testing.         Figure  1  SPECsfs2008  NFS  Throughput  Operations/Second  Hitachi  Comparison     As  the  figure  shows,  the  HUS  with  4080  and  4100  dual  node  clusters  performed  better  than   the  clustered  (2-­‐node)  HNAS  3090-­‐G2  system  with  the  optional  Performance  Accelerator   feature  by  ~10%  and  ~54%  respectively.  For  the  3090-­‐G2  without  the  performance   acceleration  feature,  the  HUS  with  4080  and  4100  significantly  exceeded  the  performance  of   the  clustered  3090-­‐G2  by  ~41%  and  ~97%  respectively.                                                                                                                               3  Please  see  http://www.spec.org/sfs2008/results/sfs2008.html  for  more  information.   4  Projected  results  have  been  submitted  to  SPECsfs2008  but  have  yet  to  be  published.  
    • REVIEW  OF  HUS  &  HNAS  PLATFORM  4000  FAMILIES   PAGE  6  OF  6     TWITTER.COM/RAYLUCCHESI | RAYONSTORAGE.COM | +1-720-221-7270 | SILVERTONCONSULTING.COM © 2013 SILVERTON CONSULTING, INC. ALL RIGHTS RESERVED The  clustered  HNAS  3090-­‐G2  system  without  the  performance  accelerator  feature  just   barely  topped  the  new  HUS  4060  by  less  than  1%.  This  small  performance  gap  could  easily   be  due  to  differences  in  backend  storage  and  could  be  the  result  of  a  measurement  error.     Summary Hitachi’s  three  new  file  sharing  models  provide  the  same  features  and  functionality  of  the   current  Hitachi  NAS  Platform  3080  and  3090  while  supplying  increased  frontend  and   backend  throughput  for  an  organization’s  file  data.  NAS  Platform  4080  and  4100  supply   better  file  IOPS  and  throughput  performance  as  well.     In  addition,  the  new  4080  and  4100  models  offer  a  larger  single  name  space  than  previously   available.  With  the  new  deduplication  functionality,  all  HDS  file  modules  also  offer  more   efficient  storage  capacity.  With  the  increased  capacity  effectiveness  and  scalability  of  the   new  4000  series,  customers  can  now  use  even  fewer  storage  systems  to  support  their  file   data  needs.  All  in  all,  the  new  HDS  lineup  of  NAS  Platform  4060,  4080  and  4100  file-­‐sharing   models  provides  an  even  more  compelling  solution  to  data  centers  that  need  better   performance,  more  scalability  and  easier  management  for  their  ever-­‐expanding  and   increasingly  mission-­‐critical  enterprise  file  data  environment.         Silverton Consulting, Inc., is a U.S.-based Storage, Strategy & Systems consulting firm offering products and services to the data storage community. QRcode: SilvertonConsulting.com