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Access "Best Practices: Finding the logic in volume managers"

Published: 20 Oct 2012

Forget what you might have heard about host-based volume managers. Here are seven reasons why they deserve some respect. Host-based volume managers (also known as logical volume managers or LVMs) are the most underrated or underutilized components in storage ecosystems, even though they've been around almost as long as open systems. Perhaps because they're host based or often managed by sys admins, many storage administrators don't consider LVMs part of their toolset. I'll set the record straight regarding LVMs and, hopefully, encourage storage administrators to use them to improve the performance of their storage environment. MYTH 1: LVMs aren't required for good performance or balance. Technically, volume managers aren't necessary for hosts such as Fibre Channel, iSCSI, parallel SCSI, JBOD or hardware RAID to access storage. To some extent, storage (hardware) vendors have made matters worse by creating a general dislike for the use of any host-based utilities that duplicate functions in their arrays, primarily RAID. However, as the source of all IO, a host... Access >>>

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What's Inside

  • Columns
    • Hot Spots: On-demand technology sized right for SMBs by Lauren Whitehouse

      Technology advancements such as deduplication and bandwidth optimization, as well as shrinking storage and bandwidth costs, are making online backup increasingly attractive for small- to medium-sized businesses.

    • Best Practices: Finding the logic in volume managers by Ashish Nadkarni

      Host-based volume managers (also known as logical volume managers) are the most underrated or underutilized components in storage ecosystems. Here are seven reasons why they deserve some respect.

    • Slow is OK

      Slow is OK

    • Storage Bin: Leaving you in good hands

      It's time for a changing of the guard for the Storage Bin column. Steve Duplessie, whose witty and perceptive insights have graced Storage magazine from day one, is stepping aside to make room for ESG's Tony Asaro to take up residency on our end page.

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