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Data Storage Hardware

Are RAID Controllers the Next Data Center Bottleneck? 171

storagedude writes "This article suggests that most RAID controllers are completely unprepared for solid state drives and parallel file systems, all but guaranteeing another I/O bottleneck in data centers and another round of fixes and upgrades. What's more, some unnamed RAID vendors don't seem to even want to hear about the problem. Quoting: 'Common wisdom has held until now that I/O is random. This may have been true for many applications and file system allocation methodologies in the recent past, but with new file system allocation methods, pNFS and most importantly SSDs, the world as we know it is changing fast. RAID storage vendors who say that IOPS are all that matters for their controllers will be wrong within the next 18 months, if they aren't already.'"
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Are RAID Controllers the Next Data Center Bottleneck?

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  • by Anonymous Coward on Saturday July 25, 2009 @01:55PM (#28820107)

    "SCSI" does not mean "parallel cable"!

    Ok, yes, you're correct.

    But the common meaning of SCSI is "parallel SCSI", because for most of SCSI's existence parallel SCSI was the only option.

    Similarly, ATA does technically include both parallel ATA and serial ATA. But the common meaning of ATA is parallel ATA, because for most of ATA's existence parallel ATA was the only option.

    Pardon me, I'll just be over here grumbling about this.

    You kids get off my lawn!

Never buy what you do not want because it is cheap; it will be dear to you. -- Thomas Jefferson