Access "Best Practices: Finding the logic in volume managers"
This article is part of the Vol. 6 No. 8 October 2007 issue of Continuous data protection (CDP) and the future of backup
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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Best Practices: Finding the logic in volume managers
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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.
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