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Archived Disk Articles
13 Oct 2008
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Sun Blueprint: Using RAID 6 on the Sun StorageTek 6140 Array [20444]
Increasing Reliability for Storage Arrays

Many users have chosen either RAID 5 or RAID 1+0 for their data storage needs. While both of these RAID algorithms provide increased data availability, they are not without their disadvantages:

  • RAID 5 - only able to sustain a single drive failure.
  • RAID 1+0 - 50% of the available storage capacity is used for mirroring

These disadvantages are exacerbated as disk drive capacity increases. With larger disks, the RAID 1+0 implementation becomes increasingly costly. A blueprint by Said A. Syed describes using Raid 6 on the Sun StorageTek 6140 Array and concludes,

"RAID 6 provides protection against two consecutive drive failures by using two independent parity calculations. Sun Microsystems takes advantage of the better performing P+Q algorithm implementation of RAID 6 and uses dedicated processors for RAID computations on intelligent RAID controllers in the StorageTek 6140 arrays for improved performance.

RAID 6 offers highly available storage for applications and implementations requiring extremely high fault tolerance while keeping cost down and performance at an acceptable level during normal circumstances. If best practices are followed, a RAID 6 disk group is capable of performing at rates very close to RAID 5 with a slightly higher cost. RAID 6 is also capable of providing reliability close to RAID 1+0 at a fraction of the cost. "
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06 Oct 2008
open to premium members only
New SAS Drives for Sun Storage J4200 and J4400 Arrays [20687]
400GB 10K RPM SAS drives for J4400; 450GB 15K RPM SAS drives for J4200 and J4400

Sun has announced SAS drives for Sun Storage J4200 and J4400 arrays, as well as new functionality and interoperability support for Sun Storage J4200, J4400, and J4500 arrays, along with the repricing of drives for Sun Storage J4200 and J4400 arrays.
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15 Sep 2008
open to premium members only
450GB 15,000K rpm Fibre Channel Hard Disk Drives [20584]
For the Sun StorageTek 6140 & 6540 arrays

Better performance, lower cost: New drives for Sun StorageTek 6140 and 6540 arrays
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15 Sep 2008
open to premium members only
New 450GB 15K SAS Drives [20585]
For the Sun StorageTek 2540, 2530, 2510, and 2501 Arrays

The Sun StorageTek 2500 Series of Arrays is adding a 450GB 15K SAS Drive to the portfolio. Existing customers can add the new drive to their current systems. New customers can create custom configurations with the new drives.
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07 Aug 2008
open to premium members only
Sun Storage J4000 Arrays Resources [20422]
Secure Daua Availability and Breakthrough Performance at $1 per Gigabyte

The open Sun storage J4000 array family combines high performance hardware and open source software. The J4000 family supports Solaris, Red Hat, Linux, Suse Linux, and Windows. This article has links to:

  • Documentation
  • ZFS Resources
  • Sun StorageTek Common Array Manager (CAM) Resources
  • Solution Briefs & White Papers

See also: main page for the J4000 family
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14 Jul 2008
open to premium members only
Storage J4200, J4400 and J4500 Arrays [20289]
Key Features

The open Sun storage J4000 array family combines high performance hardware and open source software. The J4000 family supports Solaris, Red Hat, Linux, Suse Linux, and Windows.

  • Sun Storage J4200 array - 2 RUs, up to 12 disks - low entry point
  • Sun Storage J4400 array - 4 RUs, up to 24 disks - best price performance
  • Sun Storage J4500 array - 4 RUs, up to 48 SATA disks - high density

Learn about the rest of the features.
(Get More Information . .)

 
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