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Storage and Performance of WHS RRS feed

  • Question

  • At what point does the percentage of a drive's contents start affecting performance?  In other words, the more space is accumulated does this slow things down considerably? Here's how I stand currently http://prntscr.com/42a3
    Friday, February 19, 2010 5:25 AM

All replies

  • In the increase in space allocated for storage doesn't actually slow a system down, it's what all the services and programs on your system do with these files that is responsible for slowing a system down.  For example the more files you have the more time is needed to index them for say Search Indexer, or your media server. 
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    Friday, February 19, 2010 11:30 AM
  • In the increase in space allocated for storage doesn't actually slow a system down, it's what all the services and programs on your system do with these files that is responsible for slowing a system down.  For example the more files you have the more time is needed to index them for say Search Indexer, or your media server. 
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    Actually allocated storage space may influence performance. Basically as the disk fills up performance will decrease because average seek time is longer with more data, and also storage density decreases and thus data transfer rate decreases towards the center of the disk (normally disks get filled starting at the outside). In addition fragmentation will generally increase as the disk get't filled up. Whether or not this noticeable depends on multiple parameters. If your system needs to perform lot's of operations that require disk read or write actions,  and disk IO is the limiting factor for the operation(s) your system is performing you will likely notice adverse effects gradually increasing with fill rate and fragmentation. If you do not have high disk IO you may not even notice performance issues even when the disk get's filled up to 90% or more.  In general as a rule of thumb you shoudn't let a disk get filled beyond 95%. Some people mention even lower numbers, for example 85% (because defragmentation may not perform optimal). Personally I would try and keep disk usage below 90%. Problem however is you have very little control over the space usage of individual disks on WHS. You may wan to have a look at the Drive Balancer Utility
    Friday, February 19, 2010 3:20 PM
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