Ah, ok. So now it's even more different as we have gone back to 7 x 300GB raw device drives instead of that one 1.7TB RAID device. -- Bruce Z. Lysik <[email protected]>
>________________________________ > From: Leif Hedstrom <[email protected]> >To: [email protected] >Cc: John Plevyak <[email protected]>; Bruce Lysik <[email protected]> >Sent: Wednesday, May 2, 2012 8:04 AM >Subject: Re: selectively clear device disk cache? > >On 5/2/12 9:00 AM, John Plevyak wrote: >> >> Means that you have too few directory entries for that disk. Odd, unless >> you are caching very small objects or have set the configuration for average >> object size too high. >Right, this might be my fault :). They have mostly large files, with 1.7TB of >disk, and the default of 8KB average size creates way too many directory >entries (wasting memory, disk I/O and longer startup times). They should >estimate how many objects they need, salt it appropriately, and tune the >config accordingly. > >-- Leif > > > > >
