[CentOS] Strangely slow disk
Robert Nichols
rnicholsNOSPAM at comcast.netSun Dec 4 20:32:10 UTC 2011
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On 12/04/2011 01:08 PM, fred smith wrote: > On Sun, Dec 04, 2011 at 10:24:00PM +0800, Ho Chaw Ming wrote: >> Check your bios, and make sure that you did not have IDE mode enabled and >> AHCI is selected . > > Also, is this one of the "Green" series of WD disks? Those have > a 4KB sector size, not the old/traditional 512B sector size. This has > performance ramifications in that you must have partitions begin on > a sector boundary or performance goes to the dogs. There are a number > of articles about it on various geek sites, sorry I can't point you > to one offhand. The WDxxEADS drives have 512B sectors, _not_ 4KB sectors. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.
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