The Cost of Storage about 1K$/TB

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The Cost of Storage about 1K/TB
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Disk Evolution
Kilo Mega Giga Tera Peta Exa Zetta Yotta

• Capacity100x in 10 years 1 TB 3.5 drive in
  2005 20 TB? in 2012?!
• System on a chip
• High-speed SAN
• Disk replacing tape
• Disk is super computer!

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Disks are becoming computers

• Smart drives
• Camera with micro-drive
• Replay / Tivo / Ultimate TV
• Phone with micro-drive
• MP3 players
• Tablet
• Xbox
• Many more

ApplicationsWeb, DBMS, Files OS
Disk Ctlr 1Ghz cpu 1GB RAM
Comm Infiniband, Ethernet, radio
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Intermediate Step Shared Logic
Snap 1TB 12x80GB NAS

• Brick with 8-12 disk drives
• 200 mips/arm (or more)
• 2xGbpsEthernet
• General purpose OS
• 10k/TB to 100k/TB
• Shared
• Sheet metal
• Power
• Support/Config
• Security
• Network ports
• These bricks could run applications (e.g. SQL or
  Mail or..)

NetApp .5TB 8x70GB NAS
Maxstor 2TB 12x160GB NAS
IBM TotalStorage 360GB 10x36GB NAS
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Hardware

• Homogenous machines leads to quick response
  through reallocation
• HP desktop machines, 320MB RAM, 3u high, 4 100GB
  IDE Drives
• 4k/TB (street), 2.5processors/TB, 1GB RAM/TB
• 3 weeks from ordering to operational

Slide courtesy of Brewster Kahle, _at_ Archive.org
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Disk as Tape

• Tape is unreliable, specialized, slow, low
  density, not improving fast, and expensive
• Using removable hard drives to replace tapes
  function has been successful
• When a tape is needed, the drive is put in a
  machine and it is online. No need to copy from
  tape before it is used.
• Portable, durable, fast, media cost raw tapes,
  dense. Unknown longevity suspected good.

Slide courtesy of Brewster Kahle, _at_ Archive.org
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Disk As Tape What format?

• Today I send NTFS/SQL disks.
• But that is not a good format for Linux.
• Solution Ship NFS/CIFS/ODBC servers (not disks)
• Plug disk into LAN.
• DHCP then file or DB server via standard
  interface.
• Web Service in long term